The URL can be used to link to this page

1994-03-29 Specs Utilities and Street Improvment ProjectSpecifications for PSYK'S SIXTH ADDITION UTILITIES AND STREET IMPROVEMENT PROJECT Albertville, Minnesota ~ s : ~, . . ~~ MEYER-ROHUN, !NC ~~ ~ E/ViGINEEAS-lANO SIJAVEYL)RS 1111 Hwy. 25 K, 8ullab, Mmn.553i3 Ohune 612-682-1781 Mar. 29, 1994 94120 ~~~,~~~v r a'-yTO~~~0 l ~,~ '.~ ~ z~ ~~4R~N~ :;~ ~.,~ ~ :>` SPECIFICATIONS FOR PSYK'S SIXTH ADDITION UTILITIES and STREET IMPROVEMENT PROJECT ALBERTVILLE, MINNESOTA MEYER-ROHLIN, INC. ENGINEERS AND LAND SURVEYORS 1111 HIGHWAY 25 NORTH BUFFALO, MINNESOTA 55313 March 2J, 1994 File #94120 I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision, and that I am a duly Registered Professional Engineer under the laws of the State of Minnesota. Norman P. - Reg. No. 17284 TABLE OF CONTENTS ' Instructions to Bidders. . Pro osal Form • pages 2-5 p .................... ......... pages 6-11 Contract Agreement .......................... pages 12-13 General Conditions .......................... pages 1-33 Supplemental Conditions ..................... pages 1-10 ' Form IC-134 ................................. page 11 S.C. Special Provisions .......................... pages 1-9 Street Construction Specifications.... .. pages 1-11 :::: Concrete Curb Specifications.......... .. pages 1-4 Joint Powers Water Board, Standard Requirements for Construction of Watermain.. pages 10-49 Standard Utilities Specifications........... pages 44-80 D C L MINNESOTA DEPARTMENT OF HEALTH Division of Environmental Health REPORT ON PLANS Plans and specifications on watermain: Psyks Sixth Addition, Utilities and Street Improvement, Albertville, Wright County, Minnesota, Plan No. 941840 Submitted by: Meyer-Rohlin, Inc., 1111 Highway 25 North, Buffalo, Minnesota 55313 Ownership: City of Albertville, c/o Ms. Linda Houghton, Clerk-Treasurer, Albertville City Hall, P.O. Box 131, Albertville, Minnesota 55301 Date Examined: April 12, 1994 Date Received: April 4, 1994 SCOPE: This report covers the design of this project insofar as the safety and sanitary quality of the water for public consumption may be affected, and applies to this project only and not to the entire system or any other part thereof. The examination of plans is based upon the supposition that the data on which the design is based .are correct, and that necessary legal authority has been obtained to construct the project. The responsibility for the design of structural features and the efficiency of equipment must be taken by the project designer. Approval is contingent upon satisfactory disposition of any requirements included with this report. Water supply plans are examined with regard to the location, construction and operational features of the design and maintenance of all parts of the system which may affect the safety and sanitary quality of the water. Examination is based on the standards of this department. This project consists of the installation of the following watermains: 1. 198 lineal feet of 6-inch ductile iron pipe. 2. 1,039 lineal feet of 8-inch ductile iron pipe. REQUIREMENT(S): 1. It is understood that the installation will be in accordance with previously approved specifications (City Engineers Association of Minnesota, 1988 edition). COMPLIANCE: No construction shall take place except in accordance with the approved plans. If it is desired to make deviations from the approved plans, the State Department of Health should be consulted and approval of the changes obtained before construction is started; otherwise, such construction is installed without proper approval, and in addition may create dangers to public health. Authorization for construction in accordance with the approved plans may be withdrawn if construction is not undertaken within a period of two years. The fact that the plans have been approved does not necessarily mean that recommendations or requirements for change will not be made at some later time when changed conditions, additional information, or advanced knowledge make improvements necessary. Approved: ,.~' ~~ ,~.. . ti ~ ... Robert H. Smude, P.E. Public Health Engineer Section of Drinking Water Protection 612/627-5128 RHS:Imk cc: City of Albertville Meyer-Rohlin, Inc. File INSTRUCTIONS TO BIDDERS In order for proposals to be entitled to consideration, they must be in accordance with the follovaing instructions: ' A. GENERAL All proposals shall be submitted on forms furnished by the Engineer. All information, lurr;p sums and unit prices requested ' shall be completely filled out by typevariter or in ink. All corporation bids shall bear the official seal of the corpora- tion. The bid shall be submitted on the unbound proposal forms. ' A proposal may be vaithdrawn, caithout prejudice to the bidder, by written request prior to the hour of the letting. Propcsals so withdravan may be resubmitted at any time prier to the time set ' for opening of proposals. The Ovner reserves the right to reject any or all proposals, and to waive any informalities and irregularities in the bidding. B. UALIFIC Q ATION OF BIDDERS ' The Oti~ner may .request that the bidder submit information necessary to satisfy the Corner that the bidder is adequately prepared to fulfill the contract. Such information may include ' past performance records, lists of available personnel, plants and equipment, financial statements, or any other pertinent information. C. PREPARATION OF PROPOSAL The bidder shall submit his proposal on the forms provided by ' the Engineer. The blank spaces on the proposal shall be filled in correctly for every item for vahich a quantity is given, and the bidder shall state the prices for vr~hich he proposes to do each item of werk. The bidder's proposal shall be signed correctly in ink. The ' signature acknowleges that the bidder is providing the informa- tion recuired and has received all Addenda to the Specifica- tions. D. SUBCOIJTRACTORS The names ar,d addresses of all subcontractors that the bidder ' intends to employ on the project shall be listed in the spaces provided on the proposal form. IVo other subcontractors shall be used on the project without the varitten approval of the Engineer. page 2 0 J n fl E. BID SECURITY Each bid shall be accompanied by a certified check, cashier's check, or bidders bond in the amount of five (5%) percent of the bid, as a guarantee that the bidder will enter into the proposed contract within the time specified. Should the bidder where proposal has been accepted by the Ov,~ner refuse, fail or neglect to execute the contract and furnish a satisfactory surety bond, it is understood and agreed between the Owner and said accepted bidder that the five (5%) percent of bid security shall be the amount of the licuidated damages occasioned by such refusal, failure, or neglect; and that thereupon said Owner shall realize on such bid security and use the proceeds in payment of said damages. The bid security accompanying rejected bids will be promptly returned to the bidders upon the execution of a contract or the rejection of bids. F. PLAI4S AND SPECIFICATIONS Copies of proposal forms, plans and specifications for use by contractors submitting a bid may be obtained from the Engineer on deposit of the sum of zero ($00.00 ) Dollars. This deposit will not be refundable. G. EXAD4INATION OF SITE AND DOCUI~'iEIQTS Bidders shall satisfy themselves by a personal examination of the site as to all local conditions affecting the performance of the Contract, such as the structure of the ground, the existance of surface and ground water, availability of drainage, obstacles which may be encountered, means of approach to the site, and the manner of delivery and handling of materials. _he bidder, in submitting his proposal, is deemed to accept all conditions as the same as are eventually found to exist and to waive all claim for extra compensation arising from the encountering of unforeseen difficulties except as the same are expressly provided for in either the specifications or the contract. Bidders shall also carefully examine the plans and read the specifications before submitting bids on the vaork to be done. If any bidder contemplating submitting a bid for the proposed contract is in doubt as to the true meaning of any part of the plans, specifications, or other proposed contract documents, he may submit to the Engineer a varitten request for an interpretation thereof. The clarification of the proposed documents will be made only by an addendum duly issued. A copy of such an addendum will be mailed or delivered to each person receiving a copy of the plans and .specifications and to such other prospective bidders as have requested that they be furnished with a copy of such an addendum. page 3 I'~ ~~~ ii All addenda issued to bidders prior to the date of receipt of proposals shall beccme a part of the ccntract documents, and all proposals are to include the work therein described. Each proposal submitted shall list all addenda by number which have been received prior to the time scheduled for receipt of proposals. H. ADHERENCE TO SPECIFICATIONS All ~ti~ork shall be acne in strict accordance with the specifica- tions and plans and such addenda as may be issued from time to time by the Engineer. Bidders shall be held strictly to the intent of the plans ar,d specifications. I. REJECTION OF BIDS The right is reserved to reject any or all bids or to accept such bid, as in tree opinion of the Owner will be to the best interests of the Owr:er. No bidder may withdraw his bid for at least thirty (30) days after the scheduled closing time for the receipt of bids. J. CONDITIONS IN BIDDER'S PROPOSAL The bidder shall not stipulate in his propcsal any conditions not provided for on the proposal form. K. INTERPRETATION OF ESTIMATES Bidders shall examir_e to their satisfaction the cuantities of work to be done, as determined from the plans and specifica- tions. The Er,~gineer's estimate of quantities as sho~,n on the proposal shall be used as a basis of calculation upon which the ayaard of contract will be made, but these quantities are rot guaranteed to be accurate and are furnished withcut any liability on the part of the Otti=ner. Bidders must rely on their ot~,*n calculations and shall be thoroughly familiar with the contract documents. L. DELIVERY OF PROPOSALS All bids shall be placed in a sealed envelope with a statement thereon showing the i,~ork covered by the bid and addressed to the address stipulated in the Request for Bids. Proposals may be mailed or submitted in person. No bids will be received after the time set for receiving them. Bids arriving by mail at the office of the Ot,*ner after the hour designated .for receiving bids will be returned to the sender unopened. The Engineer caill not deliver bids to the place of the bid opening. page 4 fl n '~I ;l M. REJECTION OF PROPOSALS ' Proposals may be rejected if they shcw any omission, alteration, of form, additions not called for, conditional bids or alternate bids not specified, or irregularities of any kind. Proposals in which the prices are obviously unbalanced may be rejected. N. DISQUALIFICATION OF BIDDERS More than one proposal for the same project from any individual firm, partnership or corporation under the same or different ' names will not be considered. Collusion between the bidders will be considered sufficient cause for the rejection of all bids so affected. Failure on the part of ary bidder to carry out previous contracts satisfactorily, or his lack of experience or equipment necessary for the satisfactory completicn of the v,~ork, may be ' deemed sufficient cause for his disqualification. O. UNIT PRICES In case of errcr in the extension of prices, the unit bid prices shall govern. The Owner reserves the right to waive any informality in the bids at his discreticn. D D D page 5 I~ PROPOSAL FORM FOR PSYK'S SIXTH ADDITION, UTILITIES ~ STREET IMPROVEMENT PROJECT ALBERTVILLE, MINNESOTA Bids due on or before 4:00 PM, Wednesday, April 20, 1994. Psyk Development Corporation c/o Meyer-Rohlin, Inc. 1111 Highway 25 North Buffalo, MN 55313 The undersigned, as bidder, hereby proposes and, if this proposal is accepted, agrees to furnish a bond as required and to enter into a contract with Psyk Development Corporation to furnish all materials, labor, skill, tools and equipment for the complete construction of streets, water and sewer, including all accessories as called for by the specifications herewith as prepared by Meyer-Rohlin, Inc., Engineers and Land Surveyors, 1111 Highway 25 North, Buffalo, Minnesota, 55313, acting as and in these contract documents entitled as the Engineer for the following estimated quantities and unit prices. BID "A" SANITARY SEWER Item No. Item 1. 8" PVC, SDR 35 (8-10') 2. 8" PVC, SDR 35 (10-12') 3. Manhole 48" dia. (0-8') 4. Manhole 48" dia. extra depth 5. Install outside drop to existing manhole 6. 8" watertight plug 7. 12" x 4" PVC wye 8. 8" x 4" PVC wye 9. 4" PVC, SDR 35 service pipe Qty. Unit Unit Price Total Price 203 l.f. $ $ 152 l.f. $ $ 1 each $ $ 2.8 l.f. $ $ 15 l.f. $ $ 1 each $ $ 2 each $ 6 each $ $ 696 l.f. $ $ page 6 Item No. Item 10. Crushed rock 11. Adjust existing manhole 12. Density test BID "B" WATERMAIN 1. 8" DIP, CL. 52 2. 6" DIP, CL. 52 3. 8" x 8" x 8" DIP tee 4. 8" x 8" x 6" DIP tee 5. 8" 22'-z° DIP bend 6. 8" x 6" DIP reducer 7. 8" resilient seat gate valve, valve box & riser 8. 6" resilient seat gate valve, valve box & riser 9. Hydrant 10. Remove 8" plug and connect to existing 8" PVC 11. Install 8" salvaged plug 12. 6" plug 13. Water service group 14. 1" copper service pipe 15. 8" polyethylene encasement Qty_ Unit Unit Price Total Price 20 ton $ $ 2 each $ $ 14 each $ $ TOTAL BID "A" $ 1039 l.f. $ Y N $ 198 l.f. $ $ 1 each $ $ 3 each $ $ 1 each $ $ 1 each $ $ 2 each $ _+ $ 4 each $ $ 3 each $ $ 1 each $ $ 1 each $ _ $ 1 each $ $ 17 each $ $ 730 1.f. $ $ 1039 l.f. $ $ page 7 Item No. Item Qty. Unit Unit Price 16. 6" polyethylene encasement 198 l.f. $ 17. Bacteriological test 3 each $ 18. Crushed rock 20 ton $ 19. Density test 52 each $ TOTAL BID " B" ALTERNATE BID "B" WATERMAIN 1. 8" PVC C-900 1039 l.f. $ 2. 6" PVC C-900 198 l.f. $ 3. 8" x 8" x 8" DIP tee 1 each $ 4. 8" x 8" x 6" DIP tee 3 each $ 5. 8" 22'-zo DIP bend 1 each $ 6. 8" x 6" DIP reducer 1 each $ 7. 8" resilient seat gate valve, valve .box & riser 2 each $ 8. 6" resilient seat gate valve, valve box & riser 4 each $ 9. Hydrant 3 each $ 10. Remove 8" plug and connect to existing 8" PVC 1 each $ 11. Install 8" salvaged plug 1 each $ 12. 6" plug 1 each $ 13. Water service group 17 each $ 14. 1" copper service pipe 7.30 l.f. $ 15. Bacteriological test 3 each $ Total Price page 8 Item ' No. Item Qty• Unit Unit Price Total Price 16. Crushed rock 20 ton $ $ i 17. Dens ty test 52 each $ $ TOTAL ALTERNATE BID "B" $__--_---- BID "C" STREET ' 1 Sub rade re aration 5415 $ . g p p s.y. $ ' 2. Aggregate base placed, class 5 (CV) 2415 c $ $ .y. 3. Type 31 base course ' mixture 6840 sy-in $ $ 4. Type 41 wear course mixture 6840 sy-in $ $ 5. Surmountable concrete ' curb & gutter " 2235 l.f. $ _ $ 6. 8 concrete cross gutter 28 s.y. $ $ ' 7 P t b i d . ermanen arr ca e 32 l.f. $ $ ' 8. Street sign (complete) 2 each $ $ 9. Remove & reuse barricade 8 l.f. $ $ 10. Seeding, mulching, fertilizing & disk ' anchoring 0.6 acre $ $ 11. 15" CS pipe culvert ' 16 gauge 42 l.f. $ $ 12. 15" CS pipe apron 2 each $ $ ' 13. Sodding 20 s.y. $ $ 14. Adjust manhole 1 each $ $ t 15. Adjust gate valve 2 each $ $ ' 15. Density test 2 each $ $ TOTAL " BID C $ ' TOTAL BIDS "A" "B" ~ "C" page 9 n n C ~~ L Subcontractors to be used in the work must be shown below. Name Address Name Address Name Address If this proposal is accepted, the bidder agrees to commence work and to complete all work according to the schedule in the special provisions. This proposal is submitted after careful study of the plans and specifications and from a personal knowledge of the conditions, both surface and subsoil at the various sites, which knowledge was obtained from the undersigned's own sources of information and not from any official or employee of the Owner. The undersigned does declare this proposal is made without improper connection with any other person or persons making a proposal on this same contract and is in all respects fair and without collusion or fraud and the undersigned does further declare that no person or persons acting in any official capacity for the Owner is directly or indirectly interested in the proposal herein or in the supplies of works to which it relates or in any portion of the profits thereof. It is understood and agreed that this proposal cannot be withdrawn within thirty (30) days after the opening of bids without the consent of the Owner and that the Owner has the right to accept the lowest responsive-responsible bidder or reject any or all proposals. ADDENDUM RECEIPT The receipt of the following Addenda to the Specifications is acknowledged. Addendum No. Date Addendum No. Date Addendum No. Date page 10 D '~ l n i~ ii L i~ i~ i~ i~ CONTRACT AGREEMENT 94120 THIS AGREEMENT, made and entered into as of the day of _ _+, 1994, by and between ____, herein- after called the Contractor, and Psyk Development Corporation, hereinafter called the Owner. WITNESSETH: That the Contractor and the Owner for the considerations hereinafter agree as follows: ARTICLE 1 SCOPE OF WORK The Contractor shall furnish all of the material and perform all of the work shown on the plans and drawings as described in the specifications entitled, "PSYK'S SIXTH ADDITION UTILITIES AND STREET IMPROVEMENTS, ALBERTVILLE, MINNESOTA", as prepared by Meyer-Roblin, Inc., Engineers and Land Surveyors, 1111 Highway 25 North, Buffalo, Minnesota, acting as and in these contract documents entitled "Engineer". ARTICLE 2 COMPLETION OF WORK The Contractor shall complete the work as specified within the specifications. ARTICLE 3 THE CONTRACT SUM The Owner agrees to pay and the Contractor agrees to receive and accept payment in accordance with the unit prices bid and based upon the estimated quantities for the combined estimated sum as set forth in the accepted Contractors Proposal on file with the Owner, to be ARTICLE 4 CONTRACT DOCUMENTS The Contract Documents shall consist of the following component parts: 1) The Accepted Proposal 2) Request for Bids page 12 3) Instructions to Bidders 4) General Conditions ' 5) Supplemental Conditions 6) Special Provisions 7) Street Construction Specifications 8) Concrete Curb Specifications ' 9) Joint Powers Water Board Standard Requirements for Construction of a Watermain 10) Drawings 94120 (6 sheets) 11) This Document This Instrument, together with the documents above mentioned, form the ' Contract, and they are as fully a part of the Contract as if hereto attached or herein repeated. ARTICLE 5 PAYMENTS The Contractor shall submit monthly requests for payment to the Engineer, as per specifications, including lien waivers, requesting payment for all materials, and labor expended for the payment period. The Owner will retain five (5%) percent of the amount of the payment until full completion of the Contract. ' IN WITNESS WHEREOF, the parties hereto have caused this instrument to be executed in three counterparts as of the day and year first above ' written. ' PSYK DEVELOPMENT CORPORATION BY -- BY - - Doug Psyk, President L page 13 ~i n 0 0 This document has important legal consequences: consultation v,~ith an attorney is encouraged v,~ith respect to its completion or modification. STANDARD GENERAL COhrDITIONS OF THE CONSTRUCTION CONTRACT ' Prepared by Engineers Joint Contract Documents Committee ' and Issued and Published Jointly By ' • •~ J~~MG~'Chps. AMERICAN ' ''~ • SOCIETY OF ~~•~'+• " ^ CIVIL nl I70~` o A ~ ENGINEERS ~ y ~OUNDCD ' ~ C~ U M `~` 1852 ' PROFESSIONAL ENGINEERS IN PRIVATE PRACTICE A practice dit•ision of the NATIONAL SOCIETY OF PROFESSIONAL ENGINEERS .AMERICAN CONSULTING ENGINEERS COUNCIL ' AMERICAN SOCIETY ~ T OF CI\ IL ENGINEERS CONSTRUCTION SPECIFICATIONS 1NSTITUTE This document has been approved and endorsed by i .... , ~,..,4 . The Associated General "&:~:r~ Contractors of America ,~, C C These General Conditions have been prepared for use with the O~~ner-Contractor Agreements (1\'0. ]9I0-8-A-1 or 1910-8-A-2, ]983 editions). Their provisions are interrelated and a change in one may necessitate a change in the others. Comments concerning their usage are contained in the Comme>3tary on .Agreements for Engineering Services and Contract Documents, I~'o. 1910-9, 1951 edition. For guidance in the preparation of Supplementary Conditions, see Guide to the Preparation of Supple- mentary Conditions (I~'o. 1910-17, 1983 edition). 1~'hen bidding is involved, the Standard Form of Instructions to Bidders (No. 1910-12, 1983 edition) may be used. EICIK )~'o. 1910-8 (1983 Edition) n Il 1 TABLE OF CONTENTS OF GENERAL CONDITIONS Article :'~'r~mber Tide Poge 1 DEFI:`ITIONS ...................................................... 7 2 3 PRELIl`4INARY'`4ATTERS ........................................ CONTRACT DOCU'`4EN'TS: g INTENT, AMENDING AN'D REUSE ............................... 9 4 AVAILABILITY OF LANDS; PHYSICAL CONDITIONS; REFERENCE POINTS .............................................. l0 5 BONDS AND INSUR4NCE ........................................ 11 6 CONTR4CTOR'S RESPONSIBILITIES ............................ 1q 7 OTHER ~~'ORK ..................................................... l8 8 O~'~'NER'S RESPONSIBILITIES .................................... ]9 9 EN'GINEER'S STATE'S DURING CONSTRUCTION .............. 19 10 CHANGES IN THE ~i'ORK ......................................... Z1 11 CHANGE OF CONTR4CT PRICE .................................. ?1 12 CHANGE OF CONTR4CT TIME ................................... ?4 ' 13 ~V.4RRANTY AND GU.4R4NTEE; TESTS AND INSPECTIONS; CORRECTION, REMOVAL OR ACCEPTANCE OF DEFECTIVE R'ORK ........................... ?q ]4 PAYMENTS TO CONTR4CTOR AND COMPLETION e ~6 1 15 : ; ::::::::: SUSPENSION OF WORK .AND TERMINATION ~9 ' 16 17 ARBITR4TI0:1 ..................................................... MISCELLANEOUS ................................................. 31 32 D 3 INDEX TO GEI~'ERAL CONDITIONS Article or Porogroph A'umber Acceptance of Insurance ............................. 5.13 Access to the \\'ork .............................. .... 13.2 .Addenda-definition of (see definition of Specifications) ................................. ....... 1 Agreement---definition of ......................... ....... 1 .Al] Risk Insurance ................................ ..... 5.6 Amendment, \\'ritten ............................. 1, 3.1.1 Application for Payment-definition of ........... ....... 1 Application for Pad°ment, Final ................... ... 14.12 Application for Progress Payment ................ .... ]4.2 .Application for Progress Payment-revie~~• of .... 14.4-14.7 Arbitration .~~ :..................................... ...... 16 Authorized Variation in \\'ork .................... ..... 9.5 .Availability of Lands ............................. ..... 4.1 Av~ard, :~lotice of-defined ....................... ....... 1 Before Staving Construction ..................... . 2.5-2.7 Bid-definition of ................................ ....... 1 Bonds and Insurance-in general ................. ....... 5 Bonds-definition of .............................. ....... I Bonds. Delivery of ............................... 2.1.5.1 Bonds, Performance and Other ................... . S.1-5.2 Cash .Allo~+•ances ..................................... ] 1.8 Change Order-definition of ...................... ....... 1 Change Orders-to be executed .................. .... 10.4 Changes in the \\'ork ............................. ...... JO Claims, \\'aiver of-on Final Payment ............ ... 14.16 Clarifications and Interpretations ................. ..... 9.4 Cleaning ......................................... .... 6.17 Completion ....................................... ...... 14 Completion, Substantial ......................... 14.8-14.9 Conference. Preconstruction ..................... ..... 2.8 Conflict, Error, Discrepanc~~-Contractor to Report ...................................... 2.5. 3.3 ConstructionTlachinery, Equipment, etc . ........ ..... 6.4 Continuing \~'ork ................................. .... 6.29 Contract Documents-amending and supplementing ................................. . 3.4-3.5 Contract Documents-definition of ............... ....... ] Contract Documents-Intent ..................... . 3.1-3.3 Contract Documents-Reuse of .................. ..... 3.6 Contract Price, Change of ........................ ...... ll Contract Price-definition ........................ ....... 1 Contract Time, Change of ........................ ...... l2 Contract Time, Commencement of ............... ..... 2.3 Contract Time-definition of ..................... ....... 1 Contractor-~lefi ninon of ......................... ....... I Contractor ?~4ay Stop \\'ork or Terminzte ......... .... 15.5 Contractor's Continuing Obligation ............... ... 14.15 Contractor's Duty to Report Discrepancy in Documents 2.5, 3.2 Contractor's Fee-Cost Plus ... 11.4.5.6, ] 1.5.1, 11..6-1 ].7 Contractor's Liability Insurance .................. ..... 5.3 Contractor's Responsibilities-in general ......... ....... 6 Contractor's \\'arranty of Title ........................ 14.3 Contractors-other ...................................... 7 Contractual Liability Insurance ............. .. 5.4 Coordinating Contractor--definition of ................ 7.4 Coordination .......................................... 7.4 Copies of Documents .................................. 2.2 Correction or Removal of Defective Work ........... 13.11 Correction Period, One. Year ........................ 13.12 Correction, Removal or Acceptance of Defective \\'ork-in general ........................... 13.11-13.]4 Cost-net decrease ................................. 11.6.2 Cost of \\'ork .................................... 11.4-I ].5 Costs, Supplemental ................................ ] 1.4.5 Day-definition of ....................................... 1 Defecti~•e-definition of ................................. 1 Defective Work, Acceptance of ...................... 13.13 Defective \\'ork, Correction or Removal of .......... ]3.11 Defective \\?ork-in general ............... 13, 14.7, ]4.11 Defecri~•e \\'ork, Rejecting ............................. 9.6 Definitions .............................................. 1 Delivery of Bonds ..................................... 2.1 Determination for L'nit Prices ........................ 9.10 Disputes, Decisions by Engineer ................. 9.11-9.12 Documents, Copies of ................................. 2.2 Documents, Record .................................. 6.19 Documents, Reuse .................................... 3.6 Dra~~ings-definition of ................................. I Easements ............................................ 4.1 Effective date of .Agreement-definition of ............... 1 Emergencies ......................................... 6.22 Engineer-definition of .................................. 1 Engineer's Decisions ............................ 9.10-9.12 Engineer's-I~'otice \\'ork is .Acceptable ............. ]4.13 Engineer's Recommendation of Payment ...... 14.4, 14.13 Engineer's Responsibilities, Limitations on .................................. 6.6, 9.11, 9.13-9.16 Engineer's Status During Construction-in general ...... 9 Equipment, Labor, ~4aterials and .................. 6.3-6.6 Equivalent 1`'laterials and Equipment .................. 6.7 Explorations of physical conditions ................... 4.2 Fee, Contractor's--Costs P)us ........................ 1 t.6 Field Order-definition of ............................... 1 Field Order-issued by Engineer ................ 3.5. ] , 9.5 Final Application for Pa~~ment ....................... 14.12 Final Inspection ..................................... 14.11 Final Payment and Acceptance ...................... ]4.13 Final Pa~~ment, Recommendation of ........... 14.13-14.14 General Provisions ....... 17.3-17.4 General Requirements-definition of ..................... 1 General Requirements-principal references to ................. 2.6, 4.4, 6.4, 6.6-6.7, 6.23 4 C 1 iL 1 0 i~ I _ I r~ Giving Notice ........................................ 17.1 Guarantee of Rork-by Contractor ................... 13.1 Indemnification ................................. 6.30-6.32 Inspection, Final .................................... 14.11 Inspection, Tests and ... ................... 13.3 Insurance, Bonds and-in general ....................... S Insurance, Certificates of ........................... 2.7, 5 Insurance-completed operations ...................... S.3 Insurance, Contractor's Liability ...................... 5.3 Insurance, Contractual Liability ....................... 5.4 Insurance, OH~ner's Liability .......................... S.5 Insurance, Properly 5.6-5. ] 3 Insurance-~'i'ai~~er of Rights ......................... 5.11 Intent of Contract Documents ................... 3.3. 9.14 Interpretations and Clarifications ...................... 9.4 Investigations of ph}•sical conditions ................... 4.2 Labor, A4aterials and Equipment .................. 6.3-6.5 Lams and Regulations-definition of ..................... 1 Lams and Regulations-general ....................... 6.14 Liability Insurance-Contractor's ..................... 5.3 Liability Jnsurance-Owner's ......................... 5.5 Liens--definitions of ................................ 14.2 Limitations on Engineer's Responsibilities ..................... 6.6, 9.l I, 9.13-9.16 T4aterials and equipment-furnished by Contractor .... 6.3 A4aterials and equipment-not incorporated in Work ...............................14.2 ',4aterials or equipment--equivalent .............. 6.7 Miscellaneous Provisions ............................... 17 ~4ulti-prime contracts ................................... 7 I~'otice, Giving of ................................... 17.1 Notice of .Acceptability of Project ................... 14.13 Notice of A~~ard-definition of .................... 1 Notice to Proceed--definition of .................. 1 I~'otice to Proceed-giving of .......................... 2.3 ..Or-Equal" Items .................................. 6.7 Other contractors ................................. 7 Other work . ......................... 7 Overtime V~'ork-prohibition of ................... 6.3 Owner-definition of .............................. • ~ ~ ~ 1 Owner May Correct Defective Work ............... 13.14 Owner May Stop Rork I3 ] 0 Owner May Suspend \i'ork, Terminate ......... 15.1-15.4 Owner's Duty to Execute Change Orders ............. l 1.8 Owner's Liability Insurance ................... 5.5 Owner's Representative-Engineer to serve as ..... .. 9.1 Owner's Responsibilities-in general .................... 8 Owner's Separate Representative at site ............... 9.3 Partial Utilization ................................ 14.10 Partial Utilization-definition of ................. 1 Partial Utilization-Properly Insurance ......... . 5.]S Patent Fees and Royalties ... .. ............... 6.12 Pa}~ments, Recommendation of ........... ]4.4-14,7, 14,13 Pa}~ments to Contractor-in general .................... l4 Pa}~ments to Contractor-when due ........... ]4.4, 14.13 Payments to Contractor-withholding ................ 14.7 Performance and other Bonds ..................... 5.1-5.2 Permits .............................................. 6.13 Ph}~sical Conditions ................................... 4.2 Physical Conditions=Engineer's review ............. 4.2.4 Ph}~sical Conditions-existing structures ............. 4.2.2 Ph}~sical Conditions-explorations and reports ....... 4.2.1 Physical Conditions-possible document change ..... 4.2.5 Ph}~sical Conditions-price and time adjustments .... 4.2.5 Physical Conditions-report of differing ............. 4.2.3 Physical Conditions-Underground Facilities .......... 4.3 Preconstruction Conference ........................... 2.8 Preliminary Matters ..................................... 2 Premises, Use of ................................ 6.16-6.18 Price, Change of Contract .............................. I 1 Price-Contract-definition of ............................ 1 Progress Pa}•ment, Applications for ................... 14.2 Progress Pa} ment-retainage ...... . .................. 14.2 Progress schedule ............... 2.6,x.9, 6.6, 6.'9, 15.2.6 Project-definition of ..... .................... ....... ] ... Project Representation-provision for ................. 9.3 Project Representative, Resident-definition of .......... I Project, Staningthe ................................... 2.4 Properly Insurance ............................... 5.6-5.13 Properly Insurance-Partial Utilization ............... S.IS Propert}• Insurance-Receipt and ,Application of Proceeds ........ S. ] 2-5. I3 Protection, Safety and ........................... 6.20-6.21 Punch list ........................................... 14.11 Recommendation of Pa}~ment .................. 14.4, ]4.13 Record Documents ................................... 6.19 Reference Points ...................................... 4.4 Regulations, Lav,~s and ............................. 6.14 Rejecting Defecri>>e Work ............................. 9.6 Related ~'~'ork at Site .............................. 7.]-7.3 Remedies?votExclusive ,,,,,,,,,,,,,,,,,,,,,,,,,,,, I7.4 Removal or Correction of Defective t~,'ork .. .. ] 3. ] 1 ....... Resident Project Representative--definition of ........... l Resident Project Representative-provision for ........ 9.3 Responsibilities, Contractor's-in general ............... 6 Responsibilities, Engineer's-in general ................. 9 Responsibilities, Owner's-in general .................... 8 Retainage ........................................... 14.2 Reuse of Documents .................................. 3.5 Rights of R'aY ............................. 4.1 Ro}~alties, Patent Fees and ........................... 6.12 Safety and Protection ............................ 6.20-6.21 Samples ......................................... 6.23-6.28 Schedule of progress ........ 2.6,2.8-2.9, 6.6, 6.29, ]5.2.6 Schedule of Shop Drawing submissions ...................... 2.6, 2.8-2.9, 6.23, 14.1 Schedule of values ...................... 2.6 ~.8-2.9 14.1 ~- , Schedules, Finalizing .......................... .. 2.9 Shop Drawings and Samples ..................... 6.33-6.28 Shop Drawings-definition of ................. 1 ........... Shop Drawings, use to approve substitutions ...................................... 6.7.3 Site, Visits to-by Engineer ........................... 9.2 Specifications-definition of ............................. 1 Starting Construction, Before .......:.............. 2.5-2.8 Starting the Project .................................... 2.4 Stopping Rork-by Contractor ....................... 15.5 Stopping Rork-by Owner .. ........................ 13.10 Subcontractor-definition of ............................. 1 Subcontractors-in general ....................... 6.8-6.]1 Subcontracts-required provisions ............ S.l l.l, 6.l l ]1.4.3 Substantial Completion-certification of .............. 14.8 Substantial Completion-definition of .................... 1 Substitute or "Or-Equal" Items ....................... 6.7 Subsurface Conditions ............................. 4.2-4.3 Supplemental costs ............................... ] 1.4.5 Supplementary Conditions--definition of ................ 1 Supplementary Conditions-principal references to .. 2.2, 4.2, 5.1, 5.3, 5.6-5.8, 6.3, 6.13. 6.23, ' 7.4, 9.3 Supplementing Contract Documents ............... 3.4-3.5 Supplier-definition of ................................... 1 Supplier-principal references to ... 3.6, 6.5, 6.7-6.9, 6.20, 6.24, 9. l3, 9.16, 11.8, ] 3.4, 14.12 Surety-consent to payment .................. 14.]2, ]4.14 Surety-Engineer has no duty to ..................... 9.13 Surety-notice to .......................... 10.1, ]0.5, 15.2 Suret}~-qualification of ........................... 5.]-5.2 Suspending \\'ork, by Owner ......................... ]5.] Suspension of Work and Termination-in genera] ....... ]5 Superintendent-Contractor's ......................... 6.2 Supervision and Superintendence .................. 6.1-6.2 Taxes-Payment by Contractor ....................... 6.15 Termination-by Contractor .......................... ]5.5 Termination-by Ov~~ner ......................... 15.2-15.4 Termination, Suspension of \\'ork and-in general ...... l5 Tests and Inspections ........................... 13.3-13.7 Time, ChangeLof Contract .............................. 12 1 ~I Time, Computation of ................................ 17.2 Time, Contract-definition of ............................ 1 Uncovering Work ............................... 13.8-13.9 Underground Facilities--definition of .................... 1 L'ndergrpund Facilities-not sho~+~n or indicated ..... 4.3.2 Underground Facilities-protection of ........... 4.3, 6.20 Underground Facilities-shov~~n or indicated ......... 4.3.1 Unit Price \\'ork-definition of .......................... 1 Unit Price \Vork-genera] ................. ] 1.9, 14.1, ]4.5 Unit Prices ......................................... ] 1.3.1 Unit Prices, Determinations for ....................... 9.10 Use of Premises ................................. 6.16-6.18 L'~tilit}' o«•ners .......................... 6.13, 6.20, 7.2-7.3 Values, Schedule of ......................... 2.6, 2.9, 14.1 Variations in \\'ork-.Authorized ............ 6.25. 6.27, 9.5 Visits to Site-by Engineer ............................ 9.2 f' \\'aiver of Claims-on Final Pa}~ment ................ 14.16 \\'aiver of Rights by insured parties ... .......... 5.10, 6.11 \Varrarty and Guarantee-by Contract or ............. ]3.1 \\'arranty of Title, Contractor's ....... ............... . 14.3 Rork, Access to ..................... ................ 13.2 \Vork-b}' others .................... .................... 7 \\'ork Continuing During Disputes .................... 6.29 \\'ork, Cost of ................................... 11.4-]1.5 \\'ork-definition of ................. .................... 1 \\'ork Directive Change-definition of ................... I Rork Directive Change-principal references to ...................... ...... 3.4.3, 10.1-10.2 \\'ork, Neglected by Contractor ..... ................ 13.14 \\'ork, Stopping by Contractor ....... ................. 15.5 \\'ork, Stopping by Owner ........... ............ 15.1-15.4 , R'ritten Amendment-definition of .. .................... I \\'ritten Amendment-principal references to ..................... 3.4.1, ]0.1, 11.2, 12.1 ' i~ I J GENERAL CONDITIONS ARTICLE 1-DEF1N]TIONS \\'herever used in these General Conditions or in the other Contract Documents the following terms have the meanings indicated ~~hich are applicable to both the singular and plural thereof: Addenda-R'ritten or graphic instruments issued prior to the opening of Bids which clarify, corrector change the bidding documents or the Contract Documents. Agreement-The written agreement between O\\'\ER and CONTRACTOR covering the \\'ork to be performed: other Contract Documents are attached to the Agreement and made a pan thereof as provided therein. Application for Pa~•ment-The form accepted by E\~GI- NEER ~fiich is to be used b~• CONTRACTOR in requesting progress or final payments and which is to include such sup- porting documentation as is required b~~ the Contract Documents. Bid-The offer or proposal of the bidder submitted on the prescribed form setting forth the prices for the \','ork to be performed. Bards-Bid, performance and payment bonds and other instruments of security. Change Order-A document recommended by E:~'GI\EER, which is signed by CONTRACTOR and O\\':~~ER and autho- rizes an addition, deletion or revision in the \\'ork. or an adjustment in the Contract Price or the Contract Time. issued on or after the Effective Date of the Agreement. Co,uract Documents-The Agreement, .Addenda (v.~hich per- tain to the Contract Documents), CONTRACTOR'S Bid (including documentation accompanying the Bid and an}• post- Bid documentation submitted prior to the \otice of .A~~•ard) when attached as an exhibit to the Agreement, the Bonds, these General Conditions, the Supplementar~~ Conditions, the Specifications and the Drawings as the same are more spe- cificallyidentified in the,Agreement, together v~ith all amend- ments, modifications and supplements issued pursuant to paragraphs 3.4 and 3.5 on or after the Effective Date of the Agreement. Conrroct Price-The moneys payable by O\\'NER to COI~'- TRACTOR under the Contract Documents as stated in the .Agreement (subject to the provisions of paragraph 11.9.1 in the case of Unit Price \\'ork). Contract Time-The number of da~~s (computed as provided in paragraph 17.2) or the date stated in the Agreement for the completion of the \\'ork. CONTRACTOR--The person, firm or corporation With N~hom OR'NER has entered into the Agreement. defective-,An adjective which when modifying the word Work refers to Work that is unsatisfactory, faulty or deficient, or does not conform to the Contract Documents, or does not meet the requirements of an~~ inspection, reference standard, test or approval referred to in the Contract Documents, or has been damaged prior to ENGINEER's recommendation of final payment (unless responsibility for the protection thereof has been assumed by OV,'NER at Substantial Completion in accordance with paragraph ]4.8 or 14.10). Drawings-The drawings v.•hich show the character and scope of the \\'ork to be performed and which have been prepared or approved by ENGINEER and are referred to in the Con- tract Documents. Effecri~•e Dare of the Agreenterrt-The date indicated in the Agreement on which it becomes effective, but if no such date is indicated it means the date on which the Agreement is signed and delivered by the ]ast of the two parties to sign and deliver. EA'GII~'EER-The person, firm or corporation named as such in the .Agreement. Field Order-.q written order issued by ENGINEER which orders minor changes in the \\'ork in accordance ~'.~ith para- graph 9.5 but ~•hich does not involve a change in the Contract Price or the Contract Time. General Requirements-Sections of Division ] of the Speci- fications. Lo~,•s and Regulations; Ln„•s or Regulations-Laws, rules, regulations, ordinances, codes and/or orders. I~'otice of A„•ard--The written notice by OWNER to the apparent successful bidder stating that upon compliance by the apparent successful bidder ~~ith the conditions precedent enumerated therein, ~•ithin the time specified; O\LI~'ER will sign and deliver the .Agreement. .'n'otice ro Proceed-A ~•ritten notice given by OWNER to CONTRACTOR (with a cope to ENGINEER) fixing the date on which the Contract Time will commence to run and on which CO?~'TRACTOR shall start to perform CONTRAC- TOR'S ob]igations under the Contract Documents. OWNER-The public body or authority, corporation, asso- ciation, firm or person with N~hom CONTRACTOR has entered into the Agreement and for whom the Rork is to be provided. Partial Urili;,otion-Placing a portion of the Work in service for the purpose for which it is intended (or a related purpose) before reaching Substantial Comp]etion for all the Rork. Project-The total construction of which the Rork to be provided under the Contract Documents may be the ~•ho]e, or a part as indicated elsewhere in the Contract Documents. Resident Project Representorit•e-The authorized represen- tative of ENGINEER who is assigned to the site or any part thereof. 7 Shop Drax~ings-All drawings, diagrams, illustrations, schedules and other data which are specifically prepared by or for CONTRACTOR to illustrate some portion of the Work and all illustrations, brochures, standard schedules, perfor- mance charts, instructions, diagrams and other information prepared by a Supplier and submitted by CONTRACTOR to illustrate material or equipment for some portion of the Rork. Specifications-Those portions of the Contract Documents consisting of written technical descriptions of materials, equipment, construction systems, standards and workman- ship as applied to the \\'ork and certain administrative details applicable thereto. Subcattraclor-An individual, firm or corporation having a direct contract with CONTRACTOR or with any other Sub- contractor for the performance of a part of the V~'ork at the site. Subsrnntial Completion-The ~\'ork (ora specified part thereof) has progressed to the point v.~here, in the opinion of ENGI- NEER as evidenced by ENGINEER'S definitive certificate of Substantial Completion, it is sufficiently complete, in accordance v.~ith the Contract Documents, so that the \\'ork (or specified pan) can be utilized for the purposes for ~~hich it is intended; or if there be no such certificate issued, ~~~hen final pa}~ment is due in accordance ~~~ith paragraph I4. ] 3. The terms "substantially complete" and "substantially com- pleted" as applied to zny Work refer to Substantial Comple- tion thereof. Supplententon• Conditions-The part of the Contract Docu- ments ~~hich amends or supplements these General Condi- tions. Sr~pplier-.A manufacturer, fabricator, supplier, distributor, materialman or vendor. Underground Facilities-All pipelines, conduits, ducts, cables, ~~~ires, manholes, vaults, tanks, tunnels or other such facilities or attachments, and any encasements containing such facil- itieswhich have been installed underground to furnish any of the following services or materials: electricity, gases, steam, liquid petroleum products, telephone or other communica- tions, cable television, sewage and drainage removal, traffic or other control systems or water. ordering an addition, deletion or revision in the Work, or responding to differing or unforeseen ph}~sical conditions under which the \~'ork is to be performed as provided in paragraph 4.2 or 4.3 or to emergencies under paragraph 6.22. A Work Directive Change may not change the Contract Price or the Contrast Time, but is evidence that the parties expect that the change directed or documented by a \\'ork Directive Change will be incorporated in a subsequently issued Change Order follov.~ing negotiations by the parries as to its effect, if any, on the Contract Price or Contract Time as provided in paragraph ] 0.2. li'ritten Amendment-A t~-ritten amendment of the Contract Documents, signed by OVr'NER and CONTRACTOR on or after the Effective Date of the .Agreement and normally deal- irgwith the nonengineering or nontechnical rather than strictly PJork-related aspects of the Contract Documents. ARTICLE 2-PRELIMINARY MATTERS Deliti~er~• ojBonds: 2.1. \'.'hen CONTRACTOR delivers the executed Agree- ments to OWNER, CONTRACTOR shall also deliver to OWNER such Bonds as CONTRACTOR ma}~ be required to furnish in accordance v.•ith paragraph 5.1. Copies ojDocuments: 2.2. OWNER shall furnish to CONTRACTOR up to ten copies (unless otherwise specified in the Supplementary Con- ditions) of the Contract Documents as are reasonably nec- essary for the execution of the \~'ork. Additional copies will be furnished, upon request, at the cost of reproduction. Commencement ojContract Time; 1~'otice to Proceed: 2.3. The Contract Time will commence to run on the thirtieth day after the Effective Date of the .Agreement, or, if a Notice to Proceed is given, on the day indicated in the ~otice to Proceed. A Notice to Proceed may be given at any time within thim~ days after the Effective Date of the .Agree- ment. In no event will the Contract Time commence to run later than the seventy-fifth. day after the day of Bicl opening or the thirtieth day after the Effective Date of the .Aereement, whichever date is earlier. In u i~ 0 Unit Price Work-\\'ork to be paid for on the basis of unit prices. li'ork-The entire completed construction or the various sep- arately identifiable pans thereof required to be furnished under the Contract Documents. \~'ork is the result of per- forming services, furnishing labor and furnishing and incor- porating materials and equipment into the construction, all as required by the Contract Documents. li'ork Directive Change-A written directive to CONTRAC- TOR,issued on or after the Effective Date of the Agreement and signed by O\','NER and recommended by ENGINEER, Starting the Project: 2.4. CONTRACTOR shall start to perform the \\'ork on the date when the Contract Time commences to run, but no Rork shall be done at the site prior to the date on ta~hich the Contract Time commences to run. Before Starling ConStruCtlOn: 2.5. Before undertaking each part of the \','ork, CON- TRACTOR shall carefully study and compare the Contract Documents and check and verify pertinent figures shov.~n J ~II I~ u 0 thereon and all applicable field measurements. CONTRAC- TOR shalt promptly report in Writing to ENGINEER any conflict, error or discrepancy ~•hich CONTRACTOR may discover and shall obtain a written interpretation or clarifi- cation from ENGINEER before proceeding with any \\'ork affected thereby; however, CONTRACTOR shall not be lia- ble to OWNER or ENGINEER for failure to report any conflict, error or discrepancy in the Contract Documents, unless CONTRACTOR had actual knowledge thereof or should reasonabl}~ have known thereof. 2.6. \\'ithin ten days after the Effective Date of the Aeree- ment (unless otherwise specified in the General Require- ments), CONTRACTOR shall submit to ENGINEER for review: 2.6.1. an estimated progress schedule indicating the stoning and completion dates of the various stages of the \\'ork; 2.6.2. a preliminary schedule of Shop Drawing sub- missions; and 2.6.3. a preliminary schedule of values for all of the \'dork ~~•hich mill include quantities and prices of items aggregating the Contract Price and will subdivide the V1'ork into component pans in sufficient detail to serve as the basis for progress pa}~ments during construction. Such prices ~a~ill include an appropriate amount of overhead and profit applicable to each item of Work which will be con- firmed in writing by CONTRACTOR at the time of sub- mission. 2.7. Before any \\'ork at the site is staved, CONTRAC- TOR shall deliver to O\\%NER, with a copy to ENGINEER, certificates (and other evidence of insurance requested by O\\'NER) which CONTRACTOR is required to purchase and maintain in accordance with paragraphs 5.3 and 5.4, and Ou'NER shall deliver to CONTRACTOR certificates (and other evidence of insurance requested by CONTRACTOR) which OWNER is required to purchase and maintain in accordance ~~.~ith paragraphs 5.6 and 5.7. Preconstruction Conference: 2.8. Within twenty days after the Effective Date of the Agreement, but before CONTRACTOR starts the \\'ork at the site, a conference attended by CONTRACTOR, ENGI- NEER and others as appropriate will be held to discuss the schedules referred to in paragraph 2.6, to discuss procedures for handling Shop Drawings and other submittals and for processing Applications for Payment, and to establish a working understanding among the parries as to the Rork. Finnli;ing Schedules: 2.9. _ At least ten da}~s before submission of the first Appli- cation for Payment a conference attended by CONTRAC- TOR, ENGINEER and others as appropriate will be held to finalize the schedules submitted in accordance ~~ith para- graph 2.6. The finalized progress schedule Hill be acceptable to ENGINEER as providing an orderly progression of the Rork to completion t<~ithin the Contract Time, but such acceptance will neitherimpose nn ENGINEER responsibility for the progress or scheduling of the \\'ork nor relieve CON- TRACTOR from full responsibility therefor. The finalized schedule of Shop Drawing submissions will be acceptable to ENGINEER as providing a workable arrangement for pro- cessingthe submissions. The finalized schedule of values ~°ill be acceptable to ENGINEER as to form and substance. ARTICLE 3-CONTRACT. DOCliA7ENTS: INTENT, .AMENDING. REUSE Inlenl: 3.1. The Contract Documents comprise the entire agree- ment between OWNER and CO:~'TRACTOR concerning the \\'ork. The Contract Documents are complementary: v,~hat is called for by one is as binding as if called for by all. The Contract Documents v ill be construed in accordance with the la~~ of the place of the Project. 3.2. It is the intent of the Contract Documents to describe a functionally complete Project (or pan thereof) to be con- structed in accordance v°ith the Contract Documents..Any \\'ork, materials or equipment that ma}~ reasonably be inferred from the Contract Documents as being required to produce the intended result will be supplied ~~hether or not specificalh~ called fora \\'hen t~~ords which have awell-kno~+•n technical or trade meaning are used to describe \\'ork, materials or equipment such words shall be interpreted in accordance ~+•ith that meaning. Reference to standard specifications, manuals or codes of any technical society, organization or association, or to the Laws or Regulations of any governmental authority, whether such reference be specific or by implication, shall mean the latest standard specification, manual, code or Lams or Regulations in effect at the time of opening of Bids (or, on the Effective Date of the Agreement if there were no Bids), except as may be otherU~ise specifically stated. However, no provision of any referenced standard specification, manual or code (~~~hether or not specifically incorporated by reference in the Contract Documents) shall be effective to change the duties and responsibilities of O\\'NER, CONTRACTOR or ENGINEER, or any of their consultants, agents or employ- eesfrom those set forth in the Contract Documents, nor shall it be effective to assign to ENGINEER, or any of ENGI- NEER'S consultants, agents or employees, any duty or authority to supervise or direct the furnishing or performance of the Work or any duty or authority to undertake responsi- bility contrary to the provisions of paragraph 9.15 or 9.16. Clarifications and interpretations of the Contract Documents shall be issued by ENGINEER as provided in paragraph 9.4. 3.3. If, during the performance of the Rork, CONTRAC- TOR finds a conflict, error or discrepancy in the Contract Documents, CONTRACTOR shall so report to ENGINEER in writing at once and before proceeding With the \\'ork affected thereby shall obtain a written interpretation or clarification Amending and Supplementing Contract Documents: from ENGINEER; however, CONTRACTOR shall not be liable to OWI~'ER or ENGINEER for failure to report any conflict, error or discrepancy in the Contract Documents unless CONTRACTOR had actual knov~~ledge thereof or should reasonably have kno~~~n thereof. such other lands which are designated for the uc_e of CON- TRACTOR. Easements for permanent structures or perma- nent changes in existing facilities will be obtained and paid for by O\\rNER, unless other;~ise provided in the Contract Documents. If CONTRACTOR believes that an}~ delay in 0\'.%NER's furnishing these lands, rights-of--way or ease- ments entitles CONTRACTOR to an extension of the Con- tract Time, CONTRACTOR .may make a claim therefor as provided in Article 12. CONTRACTOR shall provide for all additional lands and access thereto that may be required for temporary construction facilities or storage of materials and equipment. 3.4. The Contract Documents may be amended to pro- vide for additions, deletions and revisions in the \4rork or to modify the terms and conditions thereof in one or more of the following ways: 3.4.1. a formal Written Amendment, or 3.4.2. a Change Order (pursuant to paragraph 10.4), 3.4.3. a Rork Directive Change (pursuant to para- graph 10.1): As indicated in paragraphs 11.2 and ]2.1, Contract Price and Contract Time may only be changed by a Change Order or a \\'ritten Amendment. 3.5. In addition, the requirements of the Contract Docu- ments maybe supplemented, and minor variations and devia- tions in the Work may be authorized, in one or more of the following ways: 3.S.1. a Field Order (pursuant to paragraph 9.5), 3.5.2. ENGINEER'S approval of a Shop Drawing or sample (pursuant to paragraphs 6.26 and 6.37), or 3.5.3. ENGINEER'S written interpretation or clarifi- cation (pursuant to paragraph 9.4). Reuse of Documents: 3.6. Neither CONTRACTOR nor any Subcontractor or Supplier or other person or organization performing or fur- nishing any of the \\rork under a direct or indirect contract with OWNER shall have or acquire any title to or ownership rights in any of the Drav,~ings, Specifications or other docu- ments (or copies of any thereof) prepared by or bearing the seal of ENGINEER: and they shall not reuse an}~ of them on extensions of the Project or any other project v.~ithout written consent of O\VNER and ENGINEER and specific written verification or adaptation by ENGINEER. ARTICLE 4-AVAILABILITY OF LANDS; PHYSICAL CONDITIONS; REFERENCE POINTS Arailabilit~~ of lands: 4.1. OWNER shall furnish, as indicated in the Contract Documents, the lands upon v.~hich the V~'ork is to be per- formed, rights-of-v~~ay and easements for access thereto, and Ph~•sical Conditions: 4.2.1. Explorations and Reports: Reference is made to the Supplementary Conditions for identification of those reports of explorations and tests of subsurface conditions at the site that have been utilized b}' E'~GINEER in prep- aration of the Contract Documents. CONTRACTOR may rely upon the accuracy of the technical data contained in such reports. but not upon nontechnical data, interpreta- tions oropinions contained therein or for the completeness thereof for CONTRACTOR's purposes. Except as indi- cated in the immediately preceding sentence and in para- graph 4.2.6, CONTRACTOR shall have full responsibility with respect to subsurface conditions at the site. 4.2.2. Existing Structures: Reference is made to the Supplementary Conditions for identification of those drawings of physical conditions in or relating to existing surface and subsurface structures (except Underground Facilities referred to in paragraph 4.3) ~~.hich are at or contiguous to the site that have been utilized by ENGI- NEER in preparation of the Contract Documents. CON- TRACTOR may rely upon the accuracy of the technical data contained in such drav.~ings, but not for the complete- ness thereof for CONTR.ACTOR's purposes. Except as indicated in the immediately preceding sentence and in paragraph 4.2.6, CONTRACTOR shall have full respon- sibility with respect to ph}~sical conditions in or relating to such structures. 4.2.3. Report of Differing Conditions: If CONTRAC- TOR believes that: 4.2.3.1. any technical data on v.~hich CONTRAC- TOR is entitled to rely as provided in paragraphs 4.2.1 and 4.2.2 is inaccurate, or 4.2.3.2. any physical condition uncovered or revealed at the site differs materially from that indi- cated, reflected or referred to in the Contract Docu- ments, CONTRACTOR shall, promptly after becoming aware thereof and before performing any Work in connection therewith (except in an emergency as permitted by para- graph 6.22), notify OWNER and ENGINEER in writing about the inaccuracy or difference. to it ~~ 4.2.4. E>\'G1A'EER's Rerie++•: ENGINEER ~~•ill promptly review the pertinent conditions, determine the necessity of obtaining additional explorations or tests ~~ith respect thereto and advise OV1'NER in writing (with a copy to CONTRACTOR) of ENGINEER'S findings and con- clusions. 4.2.5. Possible Document Change: if ENGINEER concludes that there is a material error in the Contract Documents or that because of newly discovered condi- tions achange in the Contract Documents is required. a \\'ork Directive Change or a Change Order will be issued as provided in .Article l0 to reflect and document the consequences of the inaccurac)~ or difference. 4?.6. Possible Price and Time Adjustments: In each such case, an increase or decrease in the Contract Price or an extension or shortening of the Contract Time. or any combination thereof, mill be a11o~~~ab1e to the extent that they are attributable to an)~ such inaccuracy or difference. If OR'NER and CONTRACTOR are unable to agree as to the amount or length thereof. a claim ma)' be made therefor as provided in .Articles 1 ]and 12. Ph}'sical Conditions-t'nderground Facilities: 4.3.I. Shorn or Indicated: The information and data sho~~•n or indicated in the Contract Documents ~~•ith respect to existing Underground Facilities at or contiguous to the site is based on information and data furnished to O1\'NER or ENGINEER b)• the owners of such Underground Facil- ities or by others. Unless it is othen~•ise expressly pro- vided in the Supplementary Conditions: 4.3.1.1. O\\'NER and E'~'GI:vEER shall not be responsible for the accuracy or completeness of any such information or data: and, determine the extent to v,~hich the Contract Documents should be modified to reflect and document the conse- quences ofthe existence of the L?nderground Facility. and the Contract Documents N•ill be amended or supplemented to the extent necessary. During such time, CONTRAC- TOR shall be responsible for the safet)• and protection of such Underground Facilit)~ as provided in paragraph 6.20. CONTRACTOR shall be a])ow.~ed an increase in the Con- tract Price or an extension of the Contract Time, or both, to the extent that they are attributable to the existence of any Underground Facility that was not shown or indicated in the Contract Documents and ~~~hich CONTRACTOR could not reasonably have been expected to be aware of. if the parties are unable to agree as to the amount or length thereof, CONTRACTOR may make a claim therefor as provided. in Articles ]land 12. Reference Points: 4.4. OVdNER shall provide engineering surveys to estab- lish reference points for construction which in ENGINEER'S judgment are necessary to enable CONTRACTOR to proceed v.•ith the \\'ork. CO'N'TRACTOR shall be responsible for lay- ing out the \~'ork (unless otherHise specified in the General Requirements), shall protect and preser~~e the established reference points and shall make no changes or relocations without the prior ~~~ritten approval of O1\'NER. CONTRAC- TOR shall report to ENGINEER whenever any reference point is lost or destro)~ed or requires relocation because of necessar)~ changes in trades or locations, and shall be respon- sible for the accurate replacement or relocation of such ref- erence points by professionally qualified personnel. ARTICLE 5-BONDS AND INSURANCE 4.3.].2. CONTRACTOR shall have full responsi- bility for reviewing and checking al] such information and data, for locating all underground Facilities sho~~•n or indicated in the Contract Documents, for coordina- tion of the \~'ork with the owners of such Lnderground Facilities during construction, for the safety and pro- tection thereof as provided in paragraph 6.20 and repairing any damage thereto resulting from the V+'ork, the cost of all of which will be considered as having been included in the Contract Price. 4.3.2. 1~'ot Sho+r» or Indicated. If an Underground Facility is uncovered or revealed at or contiguous to the site which v.•as not shown or indicated in the Contract Documents and v.•hich CONTRACTOR could not reason- ably have been expected to be a~•are of, CONTRACTOR shall, promptly after becoming av~•are thereof and before performing any \~'ork affected thereby (except in an emer- gency as permitted by paragraph 6.23), identify the owner of such Underground Facility and give v.•ritten notice thereof to that owner and to OWI.IER and ENGINEER. ENGI- NEER Will promptly review the Underground Facility to Performance and Other Bonds: 5.1. .CONTRACTOR shall furnish performance and pay- ment Bonds. each in an amount at least equal to the Contract Price as security for the faithful performance and payment of al] CONTRACTOR'S obligations under the Contract Docu- ments. These Bonds shall remain in effect at least until one year after the date when final payment becomes due, except as otherwise provided by Law or Regulation or by the Con- tract Documents. CONTRACTOR shall also furnish such other Bonds as are required by the Supplementary Condi- tions. All Bonds shall be in the forms prescribed by Lava or Regulation or by the Contract Documents and be executed by such sureties as are named in the current list of "Com- panies Holding Certificates of Authority as Acceptable Sure- ties on Federal Bonds and as Acceptable Reinsuring Com- panies" as published in Circular 570 (amended) by the ,Audit Staff Bureau of ,Accounts, U.S. Treasury Department. All Bonds signed by an agent must be accompanied by a certified copy of the authority to act. 5.2. If the surety on any Bond furnished by CONTRAC- TOR is declared a bankrupt or becomes insolvent or its right to do business is terminated in any state where any part of the Project is located or it ceases to meet the requirements of paragraph. 5.1, CONTRACTOR shall within five .days thereafter substitute another Bond and Surety, both of ~°hich must be acceptable to OPINER. Contractor's Liabilit}• Insurance: 5.3. CONTRACTOR shall purchase and maintain such comprehensive general liability and other insurance as is appropriate for the V~'ork being performed and furnished and as will provide protection from claims set forth belovt• which may arise out of or result from CONTRACTOR'S perfor- mance and furnishing of the Work and CONTRACTOR'S other obligations under the Contract Documents, v.~hether it is to be performed or furnished by CONTRACTOR, by any Subcontractor. b}> an} one directly or indirect)}~ emplo} ed by any of them to perform or furnish any of the \~'ork. or by anyone for ~~.•hose acts any of them may be liable: 5.3.1. Claims under workers' or workmen's compen- sation, disability benefits and other similar employee ben- efit acts; 5.3.2. Claims for damages because of bodil}~ injury, occupational sickness or disease, or death of C0ITRAC- TOR's employees; thirty da}'s' prior written notice has been given to O\\'NER and ENGINEER by certified mail. All such insurance shall remain in effect until final pa}~ment and at all times thereafter when CONTRACTOR may be correcting, removing or replacing defective Rork in accordance with paragraph 13.12. In addition, CONTRACTOR shall maintain such completed operations insurance for at ]east two years after final payment and furnish OWNER with evidence of continuation of such insurance at final payment and one year thereafter. Contractual Liabilit)• Insurance: 5.4. The comprehensive general liability insurance required by paragraph 5.3 t;•ill include contractual liability insurance applicable to CONTRACTOR'S obligations under paragraphs 6.30 and 6.31. Ok•ner's Liabilit)• Insurance: 5.5. O\\'?~ER shall be responsible for purchasing and maintaining OWNER'S oti~n liability insurance and, at OWNER'S option, may purchase and maintain such insur- ance as will protect O\\'NER against claims which may arise from operations under the. Contract Documents. fl u 5.3.3. Claims for damages because of bodily injury, sickness or disease, or death of any person other than CONTRACTOR'S employees; 5.3.4. Claims for damages insured by personal injury liability coverage ~~hich are sustained (a) by any person as a result of an offense directly or indirectl}~ related to the employment of such person by CO'~TRACTOR, or (b) by any other person for any other reason; 5.3.5. Claims for damages, other than to the \\'ork itself, because of injun> to or destruction of tangible prop- erty wherever located, including loss of use resulting therefrom; 5.3.6. Claims arising out of operation of Lav, s or Reg- ulations for damages because of bodily injury or death of any person or for damage to property; and 5.3.7. Claims for damages because of bodily injure or death of any person or property damage arising out of the ownership, maintenance or use of any motor ~°ehicle. The insurance required by this paragraph 5.3 shall include the specific coverages and be written for not Less than the limits of liability and co~~erages provided in the Supplemen- tary Conditions, or required by law, whichever is greater. The comprehensive general liability insurance shall include completed operations insurance: All of the policies of insur- ance so required to be purchased and maintained (or the certificates or other evidence thereof) shall contain a provi- sion or endorsement that the coverage afforded v.•ill not be cancelled, material)}~ changed or renewal refused until at (east 12 Propert}• Insurance: 5.6. Unless other~~~ise provided in the Supplementary Conditions, O\\'NER shall purchase .and maintain property insurance upon the \\~ork at the site to the full insurable value thereof (subject to such deductible amounts as ma}~ be pro- vided in the Supplementary Conditions or required by Lams and Regulations). This insurance shall include the interests of OWNER, CONTRACTOR, Subcontractors, ENGINEER and ENGINEER'S consultants in the \\'ork, all of~~•hom shall be listed as insureds or additional insured parties, shall insure against the perils of fire and extended coverage and shall include "all risk" insurance for physical loss and damage including theft, vandalism and malicious mischief, collapse and water damage, and such other perils as maybe provided in the Supplementar~• Conditions, and shall include damages, losses and expenses arising out of or resulting from any insured loss or incurred in the repair or replacement of any insured property (including but not limited to fees and charges of engineers, architects, attorneys and other professionals). If not covered under the "all risk" insurance or other`~~ise pro- vided in the Supplementary• Conditions, CONTRACTOR shall purchase and maintain similar property insurance on portions of the Work stored on and off the site or in transit When such portions of the Rork are to be included in an Application for Payment. 5.7. OWNER shall purchase and maintain such boiler and machinery insurance or"additional property insurance as may be required by the Supplementary Conditions or LaH~s and Regulations which will include the interests of OWNER, CONTRACTOR, Subcontractors, ENGINEER AND ENGINEER'S consultants in the V1~ork, all of whom shall be listed as insured or additional insured parties. fl '_J ~l I ~_ i 5.8. All the policies of insurance (oi- the certificates or other evidence thereof) required to be purchased and main- tained by O\~'NER in accordance ~;•ith paragraphs 5.6 and 5.7 will contain a provision or endorsement that the coverage afforded will not be cancelled or materiall}• changed or renewal refused until at ]east thirt}~ da}~s' prior v~ritten notice has been given to CONTRACTOR by certified mail and ~~•ill contain waiver provisions in accordance v~>ith paragraph 5. ] 1.2. 5.9. O\'JI~'ER shall not be responsible for purchasing and maintaining any property insurance to protect the interests of CONTRACTOR, Subcontractors or others in the \\'ork to the extent of any deductible amounts that are provided in the Supplementary Conditions. The risk of loss v.~ithin the deductible amount, will be borne by CONTRACTOR. Sub- contractor or others suffering any such loss and if any of them wishes properly insurance coverage within the limits of such amounts, each ma}' purchase and maintain it at the purchas- er's own expense. 5.10. If CONTRACTOR requests in writing that other special insurance be included in the property insurance pol- icy, OWNER shall, if possible, include such insurance, and the cost thereof will be charged to CONTRACTOR b}' appro- priate Change Order or R'ritten Amendment. Prior to com- mencement of the \\'ork at the site, OWNER shall in a ritine advise CONTRACTOR v.~hether or not such other insurance has been procured by 0\\'NER. ]i'aii~er oJRights: S.l ] .1. OWNER and CONTRACTOR waive all rights against each other for all losses and damages caused by any of the perils covered by the policies of insurance provided in response to paragraphs 5.6 and 5.7 and any other property insurance applicable to the 1\'ork, and also waive all such rights against the Subcontractors, ENGI- NEER, EI~'GINEER's consultants and all other parries named as insureds in such policies for losses and damages so caused..As required by paragraph 6. ] 1, each subcon- tract between CONTRACTOR and a Subcontractor ~~ ill contain similar waiver provisions by the Subcontractor in favor ofOWNER,CONTRACTOR, ENGINEER, ENGI- NEER'sconsultants and all other parries named as insureds. None of the above waivers shall extend to the rights that any of the insured parties may. have to the proceeds of insurance held by OWNER as trustee or otherv.~ise pa}~- able under any policy so issued. 5.11.2. OWNER and CONTRACTOR intend that any policies provided. in response to paragraphs 5.6 and 5.7 shall protect all of the parries insured and provide primary coverage for all losses and damages caused by the perils covered thereby. Accordingly, all such policies shall con- tain provisions to the effect that in the event of payment of any loss or damage the insurer a°ill have no rights of recovery against any of the parries named as insureds or additional insureds, and if the insurers require separate waiver forms to be signed by ENGINEER or E'~'GI- NEER's consultant OH'NER ~~~ill obtain the same, and if such ~•aiver forms are required of any Subcontractor, CONTRACTOR will obtain the same. Receipt and Application oJProceeds: S.12. .Any insured loss under the policies of insurance required by paragraphs 5.6 and 5.7 ~~~ill be adjusted v,~ith OWNER and made payable to O\~'NER as trustee for the insureds, as their interests ma}~ appear. subject to the require- ments of any applicable mortgage clause and of paragraph 5.13. 0\~'NER shall deposit in a separate account any money so received, and shall distribute it in accordance ~~~ith such agreement as the parties in interest may reach. If no other special agreement is reached the damaged V1'ork shall be repaired or replaced, the moneys so received applied on account thereof and the \§'ork and the cost thereof covered by an appropriate Change Order or V1'ritten Amendment. 5.13. O\\'NER as trustee shall have power to adjust and settle any loss with the insurers unless one of the parties in interest shall object in writing within fifteen days after the occurrence. of loss to O\\'NER's exercise of this power. If such objection be made, OV1%NER as trustee shall make set- tlement with the insurers in accordance ~~•ith such agreement as the parries in interest may reach. if required in writing by any party in interest, O\\'NER as trustee shall, upon the occurrence of an insured loss. give bond for the proper per- formance of such duties. Acceptance oJlnsurance: 5.14. ]f O\1'NER has any objection to the coverage afforded by or other provisions of the insurance required to be pur- chased and maintained by CONTRACTOR in accordance ~ti•ith paragraphs 5.3 and 5.4 on the basis of its not complying with the Contract Documents, O\~'NER shall notify CON- TRACTOR in writing thereof ~~•ithin ten days of the date of delivery of such certificates to O\'~':~'ER in accordance with paragraph 2.7. If CONTRACTOR has any objection to the coverage afforded by or other provisions of the policies of insurance required to be purchased and maintained by O\~'NER in accordance ~~•ith paragraphs 5.6 and 5.7 on the basis of their not complying ~~•ith the Contract Documents, CON- TRACTOR shall notif}• OR'NER in writing thereof ~~•ithin ten days of the date of delivery of such certificates to CON- TRACTOR in accordance with paragraph 2.7. O«'N'ER and CONTRACTOR shall each provide to the other such addi- tional information in respect of insurance provided by each as the other may reasonably request. Failure by O\'~'NER or CONTRACTOR to give any such notice of objection ~*~ithin the time provided shall constitute acceptance of such insur- ance purchased by the other as complying v.•ith the Contract Documents. Partial L'tili:,ation-ProperTj• Insurance: S.15. If O\VNER finds it necessary to occupy or use a portion or portions of the Work prior to Substantial Comple- tion of all the Work, such use or occupancy may be accom- plished in accordance ~+•ith paragraph 14.10: provided that no l3 such use or occupancy shall commence before the insurers providing the properly insurance have acknowledged notice thereof and in ~~~riting effected the changes in coverage neces- sitated thereby. The insurers providing the properly insur- ance shall consent by endorsement on the polic}' or policies, but the properly insurance shall not be cancelled or ]apse on account of an}~ such partial use or occupancy. ARTICLE 6-CONTRACTOR'S RESPONSIBILITIES Supervision and Superintendence: 6.1. CONTRACTOR shall supervise and direct the \~'ork competently and efficienth~, devoting such attention thereto and applying Such skills and expertise as may be necessary to perform the \~'ork in accordance with the Contract Doc- uments. CONTRACTOR shall be solely responsible for the means, methods, techniques, sequences and procedures of construction,.but CONTRACTOR shall not be responsible for the negligence of others in the design or selection of a specific means, method, technique, sequence or procedure of construction which is indicated in and required by the Contract Documents.. CONTRACTOR shall be responsible to see that the finished Rork complies accurately ~~•ith the Contract Documents. 6.2. CONTRACTOR shall keep on the \\'ork at all times during its progress a competent resident superintendent, ~~~ho shall not be replaced without ~~~ritten notice to O\\'NER and ENGINEER except under extraordinar}~ circumstances. The superintendent will be CONTRACTOR'S representative at the site and shall have authority to act on behalf of CON- TRACTOR. ,All communications given to the superintendent shall be as binding as if given to CONTRACTOR. Labor, Aaterials and Equipment: 6.3. CONTRACTOR shall provide competent, suitably qualified personnel to survey and lay out the \§'ork and per- form construction as required by the Contract Documents. CONTRACTOR shall at all times maintain good discipline and order at the site. Except in connection v.~ith the safety or protection of persons or the V1'ork or properly at the site or adjacent thereto, and except as otherwise indicated in the Contract Documents, all \'~'ork at the site shall be performed during regular v.'orking hours, and CONTRACTOR ~~~ill not permit overtime v.~ork or the performance of \'~'ork on Sat- urday, Sunday or any legal holiday without 0\~'NER's writ- ten consent given after prior written notice to ENGINEER. 6.4. Unless otherv.•ise specified in the General Require- ments, CONTRACTOR shall furnish and assume full respon- sibility for all materials, equipment, labor, transportation, construction equipment and machinery, tools, appliances, fuel, poW~er, light, heat, telephone, eater, sanitary facilities, temporary facilities and all other facilities and incidentals necessary for the furnishing, performance, testing, star[-up and completion of the Work. 6.5. .All materials and equipment shall be of good quality and new, except as otherv,•ise provided in the Contract Doc- uments. If required by E;~'GINEER, CONTRACTOR shall furnish satisfactory evidence (including reports of required tests) as to the kind and quality of materials and equipment. All materials and equipment shall be applied, installed, con- nected,erected, used, cleaned and conditioned in accordance with the instructions of the applicable Supplier except as .otherwise provided in the Contract Documents; but no pro- vision of any such instructions will be effective to assign to ENGINEER, or any of ENGINEER'S consultants, agents or employees, any duty or authority to supervise or direct the furnishing or performance of the \~'ork or any duty or author• ity to undertake responsibility contrary to the provisions of paragraph 9.15 or 9.16. .9djusting Progress Schedule: 6.6. CONTRACTOR shall submit to ENGINEER far acceptance (to the extent indicated in paragraph 2.9) adjust- ments in the progress schedule to reflect the impact thereon of new developments; these ~~ill conform generally to the progress schedule then in effect and additionally Hill comply with any provisions of the General Requirements applicable thereto. Substitutes or "Or-Equal" Items: 6.7.1. \i'henever materials or equipment are specified or described in the Contract Documents b}• using the name of a proprietar}• item or the name of a particular Supplier the naming of the item is intended to establish the type, function and quality required. Unless the name is followed by words indicating that no substitution is permitted, materials or equipment of other Suppliers ma} be accepted by ENGINEER if sufficient information is submitted by CONTRACTOR to allow ENGINEER to determine that the material or equipment proposed is equivalent or equal to that named. The procedure for review by ENGINEER mill include the follov~~ing as supplemented in the General Requirements. Requests for review of substitute items of material and equipment v.•ill not be accepted by ENGI- NEER from anyone other than CONTRACTOR. If CON- TRACTOR wishes to furnish or use a substitute item of material or equipment, CONTRACTOR shall make ~vrit- ten application to ENGINEER for acceptance thereof, cenif}~ing that the proposed substitute v.•ill perform ade- quatelythe functions and achieve the results called for by the general design, be similar and of equal substance to that specified and be suited to the same use as that spec- ified, The application v~'ill state that the evaluation and acceptance of the proposed substitute will not prejudice CONTRACTOR's achievement of Substantial Comple- tion on time, Whether or not acceptance of the substitute for use. in the Vr'ork will require a change in any of the Contract Documents (or in the provisions of any other direct contract with OV~'NER for v~'ork on the Project) to adapt the design to the proposed substitute and v~~hether or not incorporation or use of the substitute in connection v.~ith the Work is subject to pa}~ment of any license fee or J iJ 14 J i J ~~ n royalty. All variations of the proposed substitute from that specified ~~°ill be identified in the application and available maintenance, repair and replacement service ~~ ill be indi- cated. The application ~~ill also contain an itemized esti- mate of all costs,that ~~~ill result directly or indirecth from acceptance of such substitute. including costs of redesign and claims of other contractors affected b}' the resulting change, all of ~rhich shall be considered by ENGINEER in evaluating the proposed substitute. ENGINEER mzv require CONTRACTOR to furnish at CONTR.ACTOR's expense additional data about the proposed substitute. 6.7.2. If a specific means. method, technique. sequence or procedure of construction is indicated in or required by the Contract Documents, CONTRACTOR may furnish or utilize a substitute means, method, sequence, technique or procedure of construction acceptable to ENGINEER, if CONTRACTOR submits sufficient information to allow ENGINEER to determine that the substitute proposed is equivalent to that indicated or required by the Contract Documents. The procedure for review by ENGINEER will be similar to that provided in paragraph 6.7.1 as applied by ENGINEER and as may be supplemented in the Gen- eral Requirements. 6.7.3. ENGINEER ~~•ill be allowed a reasonable time v~•ithin which to evaluate each proposed substitute. EN'GI- NEER will be the sole judge of acceptability, and no substitute ~~.~ill be ordered, installed or utilized ~~ ithout ENGINEER'S prior written acceptance which a ill be evi- denced by either a Change Order or an approved Shop Drawing. O!\:`vER may require CONTRACTOR to fur- nish at CONTR.ACTOR's expense a special performance guarantee or other surety ~~.~ith respect to any substitute. ENGINEER mill record time required by ENGINEER and ENGINEER'S consultants in evaluating substitutions proposed by CONTRACTOR end in making changes in the Contract Documents occasioned thereby. \\'hether or not ENGINEER accepts a proposed substitute. CON- TRACTOR shall reimburse O\\%NER for the charges of ENGINEER and ENGINEER'S consultants for evaluat- ingeach proposed substitute. Concerning Subcontractors, Suppliers and Others: 6.8.1. CONTRACTOR shall not employ any Subcon- tractor, Supplier or other person or organization (including those acceptable to OWNER and ENGINEER as indi- cated in paragraph 6.8.?), i~•hether initiall}~ or zs a substi- tute, against whom 0\\%NER or ENGINEER may have reasonable objection. CONTRACTOR shall not be required to employ any Subcontractor, Supplier or other person or organization to furnish or perform any of the \\'ork against Whom CONTRACTOR has reasonable objection. 6.8.2. If the Supplementary Conditions require the identity of certain Subcontractors, Suppliers or other per- sons or organizations (including those Who are to furnish the principal items of materials and equipment) to be sub- mitted to OWI~'ER in advance of the specified date prior to the Effective Date of the Agreement for acceptance by OWNER and ENGINEER and if CONTRACTOR has submitted a list thereof in accordance with the Supple- mentan~ Conditions, O\'r'NER's or ENGINEER'S accept- ance (either in writing or by failing to make written objec- tion thereto by the date indicated for acceptance or objec- tion inthe bidding documents or the Contract Documents) of ahy such Subcontractor, Supplier or other person or organization so identified may be revoked on the basis of reasonable objection after due investigation, in Which case CONTRACTOR shall submit an acceptable substitute, the Contract Price will be increased by the difference in the cost occasioned by such substitution and an appropriate Change Order ~~.~ill be issued or R'ritten ,Amendment signed. N'o acceptance b}> O\\'NER or ENGINEER of any such Subcontractor, Supplier or other person or organization shall constitute a "•aiver of ar»' right of 0\\%NER or ENGI- NEER to reject defectire \\'ork. 6.9. CONTRACTOR shall be fully responsible to 0\\'NER and ENGINEER for all acts and omissions of the Subcon- tractors, Suppliers and other persons and organizations per- forming or furnishing any of the V/ork under a direct or indirect contract with CONTRACTOR just as CONTRAC- TOR irresponsible for CONTRACTOR'S own acts and omis- sions. 1~'othing in the Contract Documents shall create any contractual relationship between OWNER or ENGINEER and any such Subcontractor, Supplier or other person or organization, nor shall it create any obligation on the part of 0\\'NER or ENGINEER to pay or to see to the payment of any mone}~s due any such Subcontractor. Supplier or other person or organization except as may othertiise be required by Lati~s and Regulations. 6.10. The divisions and sections of the Specifications and the identifications of any Drawings shall not control CON- TRACTOR in dividing the \\'ork among Subcontractors or Suppliers or delineating the \\'ork to be performed by any specific trade. 6.11. All \\'ork performed for CONTRACTOR by a Sub- contractor ~~i11 be pursuant to an appropriate agreement between CONTRACTOR and the Subcontractor which spe- cifically binds the Subcontractor to the applicable terms and conditions of the Contract Documents for the benefit of OWNER and ENGII~'EER and contains waiver provisions as required by paragraph 5.11. CONTRACTOR shall pay each Subcontractor a just share of any insurance moneys received by CONTRACTOR on account of losses under pol- icies issued pursuant to paragraphs 5.6 and 5.7. Patent Fees and Ro}~alties: 6.12. CONTRACTOR shall pay al] license fees and roy- alties and assume all costs incident to the use in the perfor- mance of the \\'ork or the incorporation in the \'1'ork of any invention, design, process, product or device ~~hich is the subject of patent rights or cop}~rights held by others. If a particular invention, design, process, product or device is specified in the Contract Documents for use in the perfor- mance of the Work and if to the actual knov~~ledge of OWNER 15 ~J or ENGINEER its use is subject to patent rights or copyrights calling for the pa}~ment of any license fee or ro}•alty to others, the existence of such rights shall be disclosed by OWNER in the Contract Documents. CONTRACTOR shall indemnify and hold harmless OWNER and ENGINEER and anyone directly or indirectly employed by either of them from and against all claims, damages, Josses and expenses (including attorneys' fees and court and arbitration costs) arising out of any infringement of patent rights or copyrghts incident to the use in the performance of the Rork or resulting from the incorporation in the V1ork of any invention, design. profess, product or device not specified in the Contract Documents, and shall defend all such claims in connection with any alleged infringement of such rights. Permus: " 6.13. L'n]ess otherv.•ise provided in the Supplementary Conditions, CONTRACTOR shall obtain and pay for al] con- struction permits and licenses. O~'~'NER shall assist CON- TRACTOR, ~rhen necessary, in obtaining such permits and licenses. CONTRACTOR shall pay all governmental charges and inspection fees necessary for the prosecution of the \'~'ork, ~~•hich are applicable at the time of opening of Bids. or if there are no Bids on the Effective Date of the Agreement. CON- TRACTOR shall pay al] charges of utility oti~ Hers for con- nections to the \'v'ork, and O~'~'NER shall pay all charges of such utility o~~•ners for capita] costs related thereto such as plant investment fees. place of the Project ~~~hich are applicable during the perfor- mance of the Work. L'se oJPremises: 6.16. • CONTRACTOR shall confine construction equip- ment, the storage of materials and equipment and the oper- ations of v.~orkers to the Project site and ]and and areas iden- tified in and permitted by the Contract Documents and other ]and and areas permitted by Laws and Regulations, rights- of-~~ay, permits and easements, and shall not unreasonably encumber the premises v~~ith construction equipment or other materials or equipment. CONTRACTOR shall assume full responsibility for any damage to any such land or area, or to the ov.~ner or occupant thereof or of any land or areas contig- uous thereto, resulting from the performance of the Work. Should any claim be made against O`'~'NER or ENGINEER by any such owner or occupant because of the performance of the Work, CONTRACTOR shall promptly attempt to settle ~~ith such other party by agreement or other~•ise resoh~e the claim by arbitration or at law. CONTRACTOR shall to the fullest extent permitted by Laws and Regulations, indemnify and hold 0}'~fi'ER and ENGINEER harmless from and against all claims, damages, losses and expenses (including, but not limited to, fees of engineers, architects, attorne~~s and other professionals and court and arbitration costs) arising directly, indirectly or consequentially out of any action, legal or equi- table, brought by any such other party against 0}'~'NER or ENGINEER to the extent based on a claim arising out of CONTRACTOR'S performance of the Work. LJ L~ ~~ Lax•s and Regulations: 6.14.1. CONTRACTOR shall give all notices and comply v,•ith all Laws and Regulations applicable to fur- nishing and performance of the \','ork. Except ~~~here oth- erwise expressly required by applicable Laws and Regu- lations, neitfier OWNER nor ENGINEER shall be respon- sible for monitoring CONTRACTOR'S compliance v.•ith any Laws or Regulations. 6.]4.2. If CONTRACTOR observes that the Specifi- cations or Drawings are at variance with any Laws or Regulations, CONTRACTOR shall give ENGINEER prompt written notice thereof, and any necessary changes v.~ill be authorized by one of the methods indicated in paragraph 3.4. If CONTRACTOR performs. any }'Fork knov,~ing or having reason to know that it is contrary to such Laws or Regulations, and without such notice to ENGINEER, CONTRACTOR shall bear all costs arising therefrom; however, it shall not be CONTRACTOR'S pri- mary responsibility to make certain that the Specifications and Drawings are in accordance with such Laws and Regulations. Taxes: 6.15. CONTRACTOR shall pay all sales, consumer, use and other similar taxes required to be paid by CONTRAC- TOR in accordance with the Lams and Regulations of the 16 6.17. During the progress of the Rork, CONTRACTOR shall keep the premises free from accumulations of waste materials, rubbish and other debris resulting from the `,'Fork. At the completion of the Work CO:~'TRACTOR shall remove all waste materials, rubbish and debris from and about the premises as v.~ell as all tools, appliances, construction equip- ment and machinery, and surplus materials, and shall leave the site clean and ready for occupancy by OWNER. CON- TRACTOR shall restore to original condition all property not designated for alteration by the Contract Documents. 6.18. CONTRACTOR shall not load nor permit any part of any structure to be loaded in any manner that ~~~ill endanger the structure, nor shall CONTRACTOR subject any part of the Rork or adjacent property to stresses or pressures that will endanger it, Record Documents: 6.19. CONTRACTOR shall maintain in a safe place at the site one record copy of all Drawings, Specifications, Addenda, Written Amendments, Change Orders, !York Directive Changes, Field Orders and v,>ritten interpretations and clarifications (issued pursuant io paragraph 9.4) in good order and annotated to show all changes made during con- struction.These record documents together~•ith all approved samples and a counterpart of all approved Shop Drawings will be available to ENGINEER for reference. Upon com- n L' I~ u pletion of the Rork, these record documents, samples and Shop Drawings will be delivered to ENGINEER for OV~\ER. Safety and Protection: 6.20. CONTRACTOR shall be responsible for initiating, maintaining and supervising all safety precautions and pro- grams in connection with the \~,'ork. CONTRACTOR shall take all necessary precautions for the safety of, and shall provide the necessary protection to prevent damage, injury or loss to: 6.20.1. all employees on the \\'ork and other persons and organizations ~vho may be affected thereb}~; 6.20.2. all the \'Jork and materials and equipment to be incorporated therein, ~t Nether in stora;e on or off the site: and 6.20.3. other properly at the site or adjacent thereto, including trees, shrubs, ]awns, walks, pavements, road- ways, structures, utilities and Underground Facilities not designated for removal, relocation or replacement in the course of construction. CONTRACTOR shall comply with all applicable Laws and Regulations of any public body having jurisdiction for the safety of persons or property or to protect them from damage, injury or loss: and shall erect and maintain all necessary safeguards for such safety and protection. CONTRACTOR shall notif}• o~~•ners of adjacent properly and of Underground Facilities and utility ov.•ners ~~.•hen prosecution of the \\'ork may affect them, and shall cooperate ~~•ith them in the pro- tection, removal, relocation and replacement of their prop- em~. All damage, injury or loss to any property referred to in paragraph 6.20.2 or 6?0.3 caused, directly or indirectly, in ~~•hole or in part, by CONTRACTOR, any Subcontractor, Supplier or any other person or organization direct]}• or indi- rectly employed by any of them to perform or furnish anv of the Work or anyone for ~a•hose acts an}~ of them may be liable, shall be remedied by CONTRACTOR (except damage or loss attributable to the fault of Drav,~ings or Specifications or to the acts or omissions of O\~%NER or ENGINEER or anyone employed by either of them or anyone for ~-hose acts either of them may be liable, and not attributable, directly or indi- rectly, in whole or in part, to the fault or negligence of CON- TRACTOR). CONTRACTOR'S duties and responsibilities for the safety and protection of the Rork shall continue until such time as all the Rork is completed and ENGINEER has issued a notice to O\i'NER and CONTRACTOR in accord- ance ~~ith paragraph 14.13 that the \~'ork is acceptable (except as otherH~ise expressly provided in connection with Substan- tial Completion). 6.21. CONTRACTOR shall designate a responsible rep- resentative at the site whose duty shall be the prevention of accidents. This person shall be CONTRACTOR'S superin- tendent unless otherH~ise designated in writing by CON- TRACTOR to OWNER. 17 Emergencies: 6.22. In emergencies affecting the safety or protection of persons or the \\'ork or propert}• at the site or adjacent thereto, CONTRACTOR. without special instruction or authorization from ENGINEER or OWNER, is obligated to act to prevent threatened damage, injury or loss. CONTRACTOR shall give ENGINEER prompt v~•ritten notice if CONTRACTOR believes that any significant changes in the Work or variations from the Contract Documents have been caused thereby. If ENGI- NEER determines that a change in the Contract Documents is required because of the action taken in response to an emergency, a Rork Directive Change or Change Order v.•ill be issued to document the consequences of the changes or variations. Shop Drawings and Samples: 6.23. After checking and verifi•ing al] field measurements and after complying v,•ith applicable procedures specified in the General Requirements, CONTRACTOR shall submit to ENGINEER for review and approval in accordance with the accepted schedule of Shop Dra~~•ing submissions (see para- graph 2.9), or for other appropriate action if so indicated in the Supplementary Conditions, five copies (unless other~•ise specified in the General Requirements) of all Shop Dra~~~ings, which will bear a stamp or specific written indication that CONTRACTOR has satisfied CONTRACTOR'S responsi- bilities under the Contract Documents "~ith respect to the review of the submission..All submissions ~•i11 be identified as ENGINEER may require. The data shoe°n on the Shop Drawings will be complete ~•ith respect to quantities, dimen- sions, specified performance and design criteria, materials and similar data to enable ENGINEER to review the infor- mation as required. 6?4. CONTRACTOR shall also submit to ENGINEER for review and approval ~~ith such promptness as to cause no delay in Rork, all samples required b}' the Contract Doc- uments. All samples mill have been checked by and accom- panied by a specific ~sritten indication that CONTRACTOR has satisfied CONTRACTOR'S responsibilities under the Contract Documents ~•ith respect to the review of the sub- mission and will be identified clearly as to material, Supplier, pertinent data such as catalog numbers and the use for which intended. 6.25.1. Before submission of each Shdp Drawing or sample CONTRACTOR shall have determined and veri- fied all quantities, dimensions, specified performance cri- teria, installation requirements, materials, catalog num- bers and similar data with respect thereto and reviev.~ed or coordinated each Shop Drawing or sample with other Shop Drawings and samples and with the requirements of the \'~'ork and the Contract Documents. 6.25.2. At the time of each submission, CONTRAC- TORshall give ENGINEER specific written notice of each variation that the Shop Drawings or samples may have from the requirements of the Contract Documents, and, in addition, shall cause a specific notation to be made on n each Shop Drawing submitted to ENGINEER for review and approval of each such variation. 6?6. ENGINEER will review and approve with reason- able promptness Shop Drawings and samples, but ENGI- NEER'S review and approval will be only for conformance ~~~ith the design concept of the Project and for compliance with the information given in the Contract Documents and shall not extend to means, methods, techniques, sequences orprocedures ofconstruction (except where a specific means, method, technique, sequence or procedure of construction is indicated in or required by the Contract Documents) or to safety precautions or programs incident thereto. The review and approval of a separate item as such will not indicate approval of the assembl}~ in which the item functions. CO\- TRACTOR shall make corrections required b} ENGINEER, and shall return the required number of corrected copies of Shop Drawings and submit as required new samples for review and approval. CONTRACTOR shall direct specific attention in ~~riting to revisions other than the corrections called for by ENGINEER on previous submittals. 6.27. ENGINEER'S review and approval of Shop Draw- ings or samples shall not relieve CONTRACTOR from responsibility for any variation from the requirements of the Contract Documents unless CONTRACTOR has in writing called ENGINEER'S attention to each such variation at the time of submission as required by paragraph 6.2.2 and ENGINEER has given written approval of each such varia- tion by a specific v.ritten notation thereof incorporated in or accompan}•ing the Shop Drawing or sample approval; nor will any approval by ENGINEER relieve CONTRACTOR from responsibility for erTOrs or omissions in the Shop Draw- ings or from responsibility for having complied ~~ ith the pro- visions of paragraph 6.25.]. 6?8. \\'here a Shop Drav.~ing or sample is required b}~ the Specifications,~any related \\TOrk performed prior to ENGI- NEER'sreview and approval of the pertinent submission ~~•ill be the sole expense and responsibility of CONTRACTOR. provided that any such claim, damage, loss or expense (a) is attributable to bodily injury, sickness, disease or death, or to injury to or destruction of tangible properly (other than the Work itself including the loss of use resulting therefrom and (b) is caused in ~•hole or in part by any negligent act or omissioq of CONTRACTOR. any Subcontractor. an}• person or organization directly or indirectly employed by any of them to perform or furnish any of the \\'ork or anyone for ~~fiose acts any of them may be liable, regardless of whether or not it is caused in part b}' a party indemnified hereunder or arises by or is imposed by La~v and Regulations regardless of the negligence of any such party. 6.31. In any and all claims against 0\1'NER or ENGI- NEER or any of their consultants, agents or employees by any employee of CONTRACTOR, any Subcontractor, any person or organization directly or indirectly employed by any of them to perform or furnish any of the \\'ork or anyone for v.•hose acts any of them may be liable, the indemnification obligation under paragraph 6.30 shall not be limited in any ~~•ay by any limitation on the amount or t}pe of damages, compensation or benefits payable by or for. CONTRACTOR or any such Subcontractor or other person or organization under workers' or workmen's compensation acts, disability benefit acts or other employee benefit acts. 6.32. The obligations of CONTRACTOR under para- graph 6.30 shall not extend to the liability of ENGINEER, ENGINEER'S consultants, agents or employees arising out of the preparation or approval of maps, drawings, opinions, reports, surveys, Change Orders,.designs or specifications. .ARTICLE 7-OTHER \\'ORK 0 Continuing the I''ork: 6?9. CONTRACTOR shall carry on the \\'ork and adhere to the progress schedule during al] disputes or disagreements with OWNER. No \\'ork shall be delayed or postponed pend- ing resolution of any disputes or disagreements, except as permitted by paragraph I5.5 or as CONTRACTOR and OR'NER may otherwise agree in writing. Indemnification: 6.30. To the fullest extent permitted by La~~s and Regu- lations CONTRACTOR shall indemnify and hold harmless OWNER and ENGINEER and their consultants, agents and employees from and against al] claims, damages, losses and expenses, direct, indirect or consequential (including but not limited to fees and charges of engineers, architects, attorneys and other professionals and court and arbitration costs) aris- ing out of or resulting from the performance of the \\'ork, l8 Related >•i'ori; al Site: 7.1. OWNER may perform other work related to the Proj- ect at the site by O\\'NER's o~~•n forces, have other work performed by utility o~~•ners or let other direct contracts therefor ~~.~hich shall contain General Conditions similar to these. If the fact that such other v.~ork is to be performed v.•as not noted in the Contract Documents, written notice thereof will be given to CONTRACTOR prior to starting any such other work; and, if COI~'TR.ACTOR believes that such perfor- mance will involve additional expense to CONTRACTOR or requires additional time and the parries are unable to agree as to the extent thereof, CONTRACTOR may make a claim therefor as provided in Articles I l and ]2. 7.2. CONTRACTOR shall afford each utility o~~ner and other contractor ~•ho is a parry to such a direct contract (or OWNER, if O\\'NER is performing the additional work with O\\'NER's emplo}~ees) proper and safe access to the site and a reasonable opportunity for the introduction and storage of materials and equipment and the execution of such work, and shall properly connect and coordinate the V~'ork with theirs. CONTRACTOR shall do all cutting, fitting and patching of the Work that maybe required to make its several parts come together properly and integrate with such other work. CON- I I~ i~ TRACTOR shall not endanger any work of others by cutting, excavating or otherwise altering their work and ~~°ill only cut or alter their work with the written consent of ENGI\EER and the others ~~~hose work ~+•ill be affected. The duties and responsibilities of CONTRACTOR under this paragraph are for the benefit of such utility o~•ners and other contractors to the extent that there are comparable provisions for the benefit of CONTRACTOR in said direct contracts between O\VNER and such utility owners and other contractors. 7.3. If any part of CONTRACTOR'S \!'ork depends for proper execution or results upon the ~~~ork of any such other contractor or utility owner (or O1\~?vER), CONTRACTOR shall inspect and promptly report to ENGINEER in «•riting any dela}'s, defects or deficiencies in such work that render it unavailable or unsuitable for such proper execution and results. CONTRACTOR's failure so to report ~~ ill constitute an acceptance of the other ~~-ork as fit and proper for integra- tion with CONTRACTOR'S \!'ork except for latent or non- apparent defects and deficiencies in the other work. tures which have been utilized by ENGINEER in preparing the Drav.'ings and Specifications. 8.5. O1!'NER's responsibilities in respect of purchasing and maintaining liability and property insurance are set forth in paragraphs 5.5 through 5.8. $.6. OWNER is obligated to execute Change Orders as indicated in paragraph 10.4. 8.7. 0\\~NER's responsibility in respect of certain inspections, tests and approvals is set forth in paragraph 13.4. 0 Coordination: 7.4. if O\!'NER contracts .with others for the perfor- mance of other ~'.~ork on the Project at the site, the person or organization ~~~ho will have authority and responsibility for coordination of the activities among the various prime con- tractors v,~ill be identified in the Supplementar~• Conditions, and the specific matters to be covered by such authority and responsibility ~~~ill be itemized, and the extent of such author- ityand responsibilities ~~~ill be provided. in the Supplementary Conditions. Unless otherv~•ise provided in the Supplementary Conditions, neither 0\!'N'ER nor ENGINEER shall have anv authority or responsibility in respect of such coordination. ARTICLE 8-O\\NER'S RESPONSIBILITIES 8.1. O\!'NER shall issue al] communications to CO'~'- TRACTOR through ENGINEER. 8.2. In case of termination of the employment of ENGI- NEER, OVvNER shall appoint an engineer against whom CONTRACTOR makes no reasonable objection, whose sta- tusunder the Contract Documents shall be that of the former ENGINEER. Any dispute in connection with such appoint- ment shall be subject to arbitration. 8.3. OWNER shall furnish the data required of O\!'NER under the Contract Documents promptly and shall make pa~~- ments to CONTRACTOR promptly after they are due. as provided in paragraphs 14.4 and 14.13. 8.4. OWNER'S duties in respect of providing )ands and easements and providing engineering surveys to establish reference points are set forth in paragraphs 4.1 and 4.4. Para- graph 4.2 refers to O\~~NER's identifying and making avail- able toCONTRACTOR copies of reports of explorations and tests of subsurface conditions at the site and in existing struc- 8.8. In connection with O\!'NER's right to stop \\'ork or suspend \\'ork, see paragraphs ] 3.10 and ] ~.1. Paragraph 15.2 deals .with O!\'NER's right to terminate services of CON- TRACTOR under certain circumstances. ARTICLE 9-ENGINEER°S STATUS DURING CONSTRUCTION OH•ner's Representntii~e: 9.1. ENGINEER will be O\!'NER's representative dur- ing the construction period. The duties and responsibilities and the ]imitations of authority of ENGINEER as O\'1"~ ER's representative during construction are set forth in the Con- tract Documents and shall not be extended without written consent of O\!'NER and ENGINEER. Visas to Sire: 9.2. ENGINEER will make visits to the site at intervals appropriate to the various stages of construction to observe the progress and quality of the executed \\'ork and to deter- mine, in genera), if the !'Fork is proceeding in accordance with the Contract Documents. ENGINEER ~~'ill not be required to make exhaustive or continuous on-site inspections to check the quality or quantity of the \\'ork. ENGI'~EER's efforts gill be directed to~~ard providing for O\\'NER a greater degree of confidence that the completed \\'ork will conform to the Contract Documents. On the basis of such visits and on-site observations as an experienced and qualified design profes- sional, ENGINEER will keep OWNER informed of the prog- ress ofthe Rork and will endeavor to guard O\l~NER against defects and deficiencies in the Rork. Project Representation: 9.3. If O\\~NER and. ENGINEER agree, ENGINEER will furnish a Resident Project Representative to assist ENGINEER in observing the performance of the Work. The duties, responsibilities and ]imitations of authority of any such Resident Project Representative and assistants ~~ ill be as provided in the Supplementary Conditions. if O\\'NER designates another agent to represent 0\!'NER at the site who is not ENGINEER'S agent or employee, the duties, responsibilities and (imitations of authority of such other person v~~ill be as provided in the Supplementary Conditions. 19 Clarifications and Interpretations: to ENGINEER written notice of intention to appeal from such a decision. ii 9.4. ENGII~'EER Neill issue with reasonable promptness such written clarifications or interpretations of the require- ments of the Contract Documents (in the form of DrzN•ings or otherwise) as ENGI'N'EER may detemtine necessary, which shall be consistent with or reasonably inferable from the overall intent of the Contract Documents. If CONTRACTOR believes that a written clarification or interpretation justifies an increase in the Contract Price or an extension of the Contract Time and the parties are unable to agree to the amount or extent thereof. CONTRACTOR may make a claim therefor as provided in Article l 1 or .Article ]2. Authorized Variations in 11'ork: 9.~. E:~'GINEER may authorize minor variations in the \t'ork from the requirements of the Contract Documents N•hich do not involve an adjustment in the Contract Price or the Contract Time and are consistent N•ith the overall intent of the Contract Documents. These may be accomplished by a Field Order and will be binding on OVr'NER, and also on CONTRACTOR _ who shall perform the \\'ork involved promptly. If CONTRACTOR belie. es that a Field Order justifies an increase in the Contract Price or an extension of the Contract Time and the parties are unable to agree zs to the amount or extent thereof, CONTRACTOR may make a claim therefor as provided in ,Article 11 or I2. Rejecting Defective ~i'ork: 9.6. ENGINEER will have authority to disapprove or reject \\'ork ~+~hich ENGINEER believes to be d~fecrire, and N~i11 also have authority to require special inspection or testing of the \\'ork as provided in paragraph I3.9, whether or not the \§'ork is fabricated, installed or completed. Shop Drax•ings; Change Orders and Pa~•ments: 9.7 In connection Nith ENGINEER's responsibility for Shop DraN~ings and samples, see paragraphs 6.23 through 6.28 inclusive... -- 9.8. In connection N~ith ENGINEER'S responsibilities as to Change Orders, see Articles l0, l I and 12. 9.9. In connection N•ith ENGINEER'S responsibilities in respect of Applications for Pa}~ment, etc., see Article ]4. Determinations jot Unit Prices: 9.10. ENGII~'EER will determine the actual quantities and classifications of Unit Price Rork performed by CON- TRACTOR. EI~'GINEER will review with CONTRACTOR ENGINEER'S preliminary determinations on such matters before rendering a written decision thereon (by recommen- dation of an Application for Payment or otherN~ise). ENGI- NEER's written decisions thereon will be final and binding upon OWNER and CONTRACTOR, unless, within ten days after the date of any such decision, either O\\%NER or CON- TRACTOR delivers to the other party to the Agreement and 20 Decisions on Disputes: 9.]]. ENGINEER will be the initial interpreter of the requirements of the Contract Documents and judge of the acceptability of the \\'ork thereunder. Claims, disputes and other matters relating to the acceptability of the \~Jork or the interpretation of the requirements of the Contract Documents pertaining to the performance and furnishing of the Work and claims under .Articles l 1 and l2 in respect of changes in the Contract Price or Contract Time will be referred initially to ENGINEER in N~riting with a request for a formal decision in accordance N•ith this paragraph, which ENGINEER will render in N~riting within a reasonable time. R'ritten notice of each such claim, dispute and other matter will be delivered by the claimant to ENGINEER and the other party to the .Agreement promptly (but in no event later than thirty days) after the occurrence of the event giving rise thereto, and written supporting data will be submitted to ENGINEER and the other parry within sixty days after such occurrence unless ENGINEER allows an additional period of time to ascertain more accurate data in support of the claim. 9.12. \\'hen functioning as interpreter and judge under paragraphs 9.10 and 9.11, ENGINEER ~e~ill not show par- tiality to 0\\'NER or CON?R.ACTOR and Nill not be liable in connection N~ith an}~ interpretation or decision rendered in good faith in such capacit}~. The rendering of a decision by ENGINEER pursuant to paragraphs 9. ] 0 and 9.11 with respect to any such claim, dispute or other matter (except an}• N~hich have been waived by the making or acceptance of final pa}•- ment as provided in paragraph 14.16) will be a condition .precedent to any exercise by O\\'NER or CONTRACTOR of such rights or remedies as either may otherwise have under the Contract Documents or by Laws or Regulations in respect of any such claim, dispute or other matter. Limitations on EA'Gl.'~'EER's Responsibilities: 9.13. I~'either ENGINEER'S authority to act under this Article 9 or elsewhere in the Contract Documents nor any decision made by ENGINEER in good faith either to exercise or not exercise such authority shall give rise to any duty or responsibility of ENGINEER to CONTRACTOR, any Sub- contractor, any Supplier, or any other person or organization performing an}~ of the \\'ork, or to any surety for any of them. 9.14. \\'henever in the Contract Documents the terms "as ordered", "as directed", "as required", "as allowed", "as approved" or terms of like effect or import are used, or the adjectives "reasonable", "suitable", "acceptable", "proper" or "satisfactory" or adjectaves of like effect or import are used to describe a requirement, direction, review or judgment of ENGINEER as to the \\'ork, it is intended that such requirement, direction, review or judgment will be so}ely to evaluate the Work for compliance N~ith the Contract Docu- ments (unless there is a specific. statement indicating other- wise). The use of any such term or adjective shall not be ii L 0 u I~ J effective to assign to ENGINEER any duty or authority to supervise or direct the furnishing or per!'ormance of the Rork or any duty or authority to undertake responsibility contrary to the provisions of paragraph 9.]5 or 9.16. 9.15. ENGINEER will not be responsible for CON- TRACTOR'smeans, methods, techniques, sequences or pro- cedures of construction, or the safety precautions and pro- grams incident thereto, and ENGINEER v.~ill not be respon- sible for COI~'TRACTOR's failure to perform or furnish the !\'ork in accordance ~~~ith the Contract Documents. 9.I6. ENGINEER will not be responsible for the acts or omissions of CONTRACTOR or of any Subcontractor, any Supplier, or of any other person or organization performing or furnishing any of the Work. ARTICLE 10-CHANGES IN THE \\'ORK 10.1. \!'ithout invalidating the Agreement and without notice to any surety, OWNER may, at any time or from time to time, order additions, deletions or revisions in the \!'ork; these will be authorized by a R'ritten Amendment, a Change Order, or a Work Directive Change. Upon receipt of any such document, CONTRACTOR shall promptly proceed ~i•ith the \!'ork involved which will be performed under the applicable conditions of the Contract Documents (except as otherv.•ise specifically provided). 10.2. If O\!'NER and CONTRACTOR are unable to scree as to the extent, if any, of an increase or decrease in~the Contract Price or an extension or shortening of the Contract Time that should be allo~~~ed as a result of a 1!'ork Directive Change, a claim ma~~ be made therefor as provided in Article 1 I or .Article 12. 10.3. CONTRACTOR shall not be entitled to an increase in the Contract Price or an extension of the Contract Time «~ith respect to any \!'ork performed that is not required by the Contract Documents as amended, modified and supple- mented as prop°ided in paragraphs 3.4 and 3.5, except in the case of an emergency as provided in paragraph 6.22 and except in the case of uncovering Rork as provided in para- graph 13.9. 10.4. OWNER and CONTRACTOR shzll execute appro- priate Change. Orders (or 1!'ritten Amendments) covering: 10.4.1. changes in the Work ~~hich are ordered by OV~'NER pursuant to paragraph 10.1, are required because of acceptance of defectii•e \\'ork under paragraph 13.13 or correcting defectii•e Rork under paragraph 13.14, or are agreed to by the parries; 10.4.2. changes in the Contract Price or Contract Time which are agreed to by the parties; and 10.4.3. changes in the Contract Price or Contract Time which embody the substance of any written decision ren- dered by ENGINEER pursuant to paragraph 9.11; provided that, in lieu of executing any such Change Order, an appeal may be taken from any such decision in accordance with the provisions of the Contract Documents and applicable Laws and Regulations, but during any such appeal, CON- TRACTOR shall carry on the \!'ork and adhere to tfie prog- ress schedule as provided in paragraph 6.29. 10.5. If notice of any change affecting the general scope of the Rork or the provisions of the Contract Documents (including, but not limited to, Contract Price or Contract Time) is required by the provisions of any Bond to be given to a surety, the giving of any such notice will be CONTRAC- TOR'S responsibility, and the amount of each applicable Bond will be adjusted accordingly. ARTICLE I 1-CHANGE OF CONTRACT PRICE 1].1. The Contract Price constitutes the total compen- sation (subject to authorized adjustments) payable to CON- TRACTOR for performing the \!'ork..All duties, responsibil- ities and obligations assigned to or undertaken by CON- TRACTOR shall be at his expense ~~ithout change in the Contract Price. 11.2. The Contract Price may only be changed by a Change Order or by a \\'ritten .Amendment..4ny claim for an increase or decrease in the Contract Price shall be based on written notice delivered by the party making the claim to the other party and to ENGINEER promptly (but in no event later than thirty days) after the occurrence of the event giving rise to the claim and stating the general nature of the claim. ;~'otice of the amount of the claim with supposing data shall be delivered »~ithin sixty days after such occurrence (unless ENGINEER allows an additional period of time to ascertain more accurate data in support of the claim) and shall be accompanied by claimant's written statement that the amount claimed covers all known amounts (direct, indirect and con- sequential) to ~~•hich the claimant is entitled as a result of the occurrence of said event. All claims for adjustment in the Contract Price shall be determined by ENGINEER in accor- dance with paragraph 9.11 if O!!'NER and CONTRACTOR cannot otherwise agree on the amount invoh~ed. No claim for an adjustment in the Contract Price v.•ill be va}id if not submitted in accordance with this paragraph l 1.2. ] 1.3. The value of any Work covered by a Change Order or of any claim for an increase or decrease in the Contract Price shall be determined in one of the following ways: 11.3.1. Where the Work involved is covered by unit prices contained in the Contract Documents, by applica- tion of unit prices to the quantities of the items involved (subject to the provisions of paragraphs 1].9.1. through 11.9.3, inclusive). 21 i~ ] 1.3.2. . By mutual acceptance of a lump sum (~~~hich may include an allowance for overhead and profit not necessarily in accordance with paragraph l 1.6.2. ] ). to the other provisions of the Contract Documents insofar as applicable. 7 11.3.3. On the basis of the Cost of the \\'ork (deter- mined as provided in paragraphs 11.4 and ]1.5) plus a CONTR.ACTOR's Fee for overhead and profit (deter- mined as provided in paragraphs l I.6 and 11.7). Cost ojthe Rork: I1.4. The term Cost of the yl'ork means the sum of all costs necessarily incurred and paid by CONTRACTOR in the proper performance of the Work. Except as other~~•ise may be agreed to in writing by O\~'NER, such costs shall be in amounts no higher than those prevailing in the locality of the Project, shall include only the following items and shall not include an}~ of the costs itemized in paragraph 1 l .5: 11.4.1. Payroll costs for employees in the direct employ of CONTRACTOR in the performance of the \\'ork under schedules of job classifications agreed upon by 0\\" DER and CONTRACTOR. Payroll costs for employees not employed full time on the Work shall be apportioned on the basis of their time spent on the \\'ork. Pa} roll costs shall include, but not be limited to, salaries and ~ti•aees plus the cost of fringe benefits ~~~hich shall include social security contributions. unemployment. excise and pa}roll taxes, workers' or workmen's compensation. health and retirement benefits, bonuses, sick leave, vacation and hol- iday pay applicable thereto. Such employees shall include superintendents and foremen at the site. The expenses of performing \'ork after regular working hours, on Satur- day, Sunday or legal holidays, shall be included in the above to the extent authorized by O\~';~ER. l ].4.2. Cost of all materials and equipment furnished and incorporated in the \\'ork, including costs of trans- portation andstorage thereof, and Suppliers field services required in connection therea~ith..All cash discounts shall accrue to CONTRACTOR unless O\'.'NER deposits funds with CONTRACTOR with which to make payments, in vhich case the cash discounts shall accrue to O\\%1ER. All trade discounts, rebates and refunds and all returns from sale of surplus materials and equipment shall accrue to OWNER, and CONTRACTOR shall make provisions so that they may be obtained. 11.4.3. Payments made by CONTRACTOR to the Subcontractors for \''ork performed by Subcontractors. If required by OWNER, CONTRACTOR shall obtain competitive bids from Subcontractors acceptable to CON- TRACTOR and shall deliver such bids to OWNER who will then determine, with the advice of ENG]NEER, which bids will he accepted, if a subcontract provides that the Subcontractor is to be paid on the basis of Cost of the Rork Plus a Fee, the Subcontractor's Cost of the \'.'ork shall be determined in the same manner as CONTRAC- TOR'S Cost of the \'ork. All subcontracts shall be subject 22 11.4.4, Costs of special consultants (including but not limited to engineers, architects, testing laboratories, sur- veyors, attorneys and accountants) employed for services specifically related to the Rork. 11.4.5. Supplemental costs including the following: 1].4.5.1. The proportion of necessary transporta- tion, travel and subsistence expenses of CONTRAC- TOR'S employees incurred in discharge of duties con- nected with the \Vork. 1].4.5.2. Cost, including transportation and main- tenance, of al] materials, supplies, equipment, machin- ery, appliances, office and temporary facilities at the site and hand tools not o~•ned b}' the ~e~orkers, v,•hich are consumed in the performance of the \\'ork, and cost less market value of such items used but not consumed vhich remain the properly of CONTRACTOR. ] ] .4.5.3. Rentals of all construction equipment and machinery and the pans thereof whether rented from CONTRACTOR or others in accordance with rental agreements approved by OWNER with the advice of ENGINEER, and the costs of transportation, loading, unloading, installation, dismantling and removal thereof-all in accordance v.~ith terms of said rental agreements. The rental of any such equipment, machin- er}~ or pans shall cease U~hen the use thereof is no loncer necessary for the \\'ork. 11.4.5.4, Sales, consumer, use or similar taxes related to the \~l'ork, and for v.•hich CONTRACTOR is liable, imposed by Laws and Regulations. 1 ] .4.5.5. Deposits Jost for causes other than negli- gence of CONTRACTOR, any Subcontractor or any- one directly or indirectly employed by any of them or for whose acts any of them may be liable, and royalty pa}~ments and fees for permits and licenses. 11.4.5.6. Losses and damages (and related expenses), not compensated b}~ insurance or other~~ise, to the Work or otherv,•ise sustained by CONTRACTOR in connection with the performance and furnishing of the Work (except losses and damages «~ithin the deductible amounts of property insurance established by O\~'NER in accordance with paragraph 5.9), pro- vided they have resulted from causes other than the negligence of CONTRACTOR, any Subcontractor, or anyone directly or indirectly emplo}+ed by any of them or for whose acts any of them may be liable. Such Josses shall include settlements made H~ith the written consent and approval of Oy'~'NER. No such losses, damages and expenses shall be included in the Cost of the Vdork for the purpose of determining CONTRAC- TOR'S Fee. ]f, however, any such Joss or damage fl n 7 0 ~' I~ ~~~ requires reconstruction and CONTRACTOR is placed in charge thereof, CONTRACTOR shall be paid for sen~ices a fee proportionate to that stated in paragraph 11.6.2. 11.4.5.7. The cost of utilities, fuel and sanitary facilities at the site. 11.4.5.8. A4inor expenses such as telegrams, long distance telephone calls, telephone service at the site, expressage and similar petty cash items in connection with the \\~ork. 11.4.5.9. Cost of premiums for additional Bonds and insurance required because of changes in the \\'ork and premiums for properly insurance coverage ~~~ithin ' the limits of the deductible amounts established by OWNER in accordance v.~ith paragraph 5.9. ~~~ n l 1.5. The term Cost of the Work shall not include an_v of the following: 11.5.1. Payro]] costs and other compensztion of CON- TRACTOR'S officers, executives, principals (of partner- ship and sole proprietorships), general managers, engi- neers, architects. estimators. attorneys, auditors. accoun- tants, purchasing and contracting agents, expeditors, timekeepers, clerks and other personnel employed by CONTRACTOR whether at the site or in CONTRAC- TOR'S principal or a branch office for general administra- tion ofthe Vl'orkand not specifical]}~ included in the agreed upon schedule of job classifications referred to in para- graph 1 1.4.1 or specifically covered by paragraph 1 ] .4.4-- all of which are to be considered administrative costs covered by the CONTR.ACTOR's Fee. ] 1.5.2. Expenses ~f CONTRACTOR'S principal and branch offices other than CO:~'TRACTOR's office at the site. l ] .5.3. Any part of CO'~'TRACTOR's capital expenses, including interest on CONTRACTORS capita] emplo} ed for the \\'ork and charges against CONTRACTOR for delinquent pa~~ments. 11.5.4. Cost of premiums for all Bonds and for all insurance whether or not CONTRACTOR is required by the Contract Documents to purchase and maintain the same (except for the cost of premiums covered by sub- paragraph ] ] .4.5.9 above). 11.5.5. Costs due to the negligence of CONTRAC- TOR, any Subcontractor, or an}gone directl}~ or indirectly emplo}red by any of them or for whose acts any of them may be liable, including but not limited to, the correction of defective Work, disposal of materials or equipment v~rongly supplied and making good any damage to prop- erly. 11.5.6. Other overhead or general expense costs of any kind and the costs of any item not specifically and expressly included in paragraph 11.4. COA'TRACTOR's Fee: 11.6. The CONTRACTOR'S Fee allowed to CONTRAC- TOR for overhead and profit shall be determined as fo1lo~~s: 11.6.1. a mutually acceptable fixed fee; or if none can be agreed upon, ] 1.6.2. a fee based on the follo~~~ing percentages of the various portions of the Cost of the Work: ] 1.6.2.1. for costs incurred under paragraphs ] 1.4.1 and 11.4.2, the CONTRACTOR'S Fee shall be fifteen percent; 11.6.2.2. for costs incurred under paragraph ] 1.4.3, the CONTRACTOR'S Fee shall be fve percent; and if a subcontract is on the basis of Cost of the \~'ork Plus a Fee, the maximum allowable to CONTRACTOR on account of overhead and profit of all Subcontractors shall be fifteen percent; 11.6.2.3. no fee shall be pa}•able on the basis of costs itemized under paragraphs 1 ].4.4, l ].4.5 and 11.5; ] 1.6.2.4. the amount of credit to be allowed by CONTRACTOR to O\\'NER for any such change which results in a net decrease in cost will be the amount of the actual net decrease plus a deduction in CONTR.AC- TOR's Fee by an amount equal to ten percent of the net decrease; and ] 1.6.2.5. when both additions and credits are involved in any one change, the adjustment in CON- TRACTOR'S Fee shall be computed on the basis of the net change in accordance with paragraphs ]1.6.2.1 through 1 ].6.2.4, inclusive. 11.7. Whenever the cost of any Work is to be determined pursuant to paragraph 11.4 or' I1.S, CONTRACTOR will submit in form acceptable to ENGINEER an itemized cost breakdown together with supposing data. Cash Al/ox•ances: 11.8. It is understood that CONTRACTOR has included in the Contract Price all allov~~ances so named in the Contract Documents and shall cause the \~'ork so covered to be done by such Subcontractors or Suppliers and for such sums within the limit of the allowances as may be acceptable to ENGI- NEER. CONTRACTOR agrees that: 11.8.1. The allowances include the cost to CON- TRACTOR (Jess any applicable trade discounts) of mate- rialsand equipment required by the allowances to be deliv- ered at the site, and all applicable taxes; and 11.8.2. CONTRACTOR'S costs for unloading and handling on the site, labor, installation costs, overhead, profit and other expenses contemplated for the allowances have been included in the Contract Price and not in the 23 allov.~ances. No demand for additional payment on account of any thereof will be valid. Prior to final payment, an appropriate Change Order will be issued as recommended by ENGINEER to reflect actual amounts due CONTRACTOR on account of Work covered by allowances, and the Contract Price shall be correspond- ingly adjusted. GnitPrice 11'ork: 11.9.1. \\'here the Contract Documents provide that all or part of the Work is to be Unit Price \\'ork, initially the Contract Price ~•ill be deemed to include for all L'nit Price Work an amount equal to the sum of the established unit prices for each separately identified item of Unit Price \\'ork times the estimated quantity of each item as indi- cated in the Agreement. The estimated quantities of items of Unit Price: \\'ork are not guaranteed and are solely for the purpose of comparison of Bids and determining an initial Contract Price. Determinations of the actual quan- tities and classifications of Unit Price \~'ork performed by CONTRACTOR will be made by ENGINEER in accor- dance with Paragraph 9.10. 1].9.2. Each unit price ~+~il] be deemed to include an amount considered by CONTRACTOR to be adequate to cover CONTRACTOR'S overhead and profit for each sep- arately identified item. shall be determined by ENGINEER in accordance with para- graph 9. ] 1 if OWNER and CONTRACTOR cannot otherwise agree. No claim for an adjustment in the Contract Time v~~ill be valid if not submitted in accordance with the requirements of this paragraph ]2.1. 12.2. The Contract Time v,~ill be extended in an amount equal to time lost due to delays beyond the control of CON- TRACTOR if a claim is made therefor as provided in para- graph 12.1. Such delays shall include, but not be limited to, acts or neglect by OWNER or others performing additional ~~~ork as contemplated by Article 7, or to fires, floods, labor disputes, epidemics, abnormal ~~eather conditions or acts of God. 12.3. All time limits stated in the Contract Documents are of the essence of the Agreement. The provisions of this Article 12 shall not exclude recovery for damages (including but not limited to fees and charges of engineers, architects, attorne}~s and other professionals and court and arbitration costs) for delay by either party. ARTICLE 13-WARR4NTY .4ND GUARANTEE; TESTS ,4ND INSPECTIONS; CORRECT]ON, RE7`4OV.4L OR ACCEPTANCE OF DEFECTIVE WORK ~~ I~ 11.9.3. \\'here the quantity of any item of L'nit Price \\'ork performed by CONTRACTOR differs materially and significantly from the estimated quantity of such item indicated in the .Agreement and -there is no corresponding adjustment with respect to any other item of \\'ork and if CONTRACTOR believes that CONTRACTOR has incurred additional expense as a result thereof, CON- TRACTOR may make a claim for an increase in the Con- tract Price in=accordance with Article 11 if the parties are unable to agree as to the amount of any such increase. ARTICLE 12-CHANGE OF CONTRACT TIA4E 12.1. The Contract Time ma}~ only be changed by a Change Order or a Written Amendment. Any claim for an extension or shortening of the Contract Time shall be based on'x•ritten notice delivered by the party making the claim to the other party and to ENGINEER promptly (but in no event later than thirty days) after the occurrence of the event giving rise to the claim and stating the general nature of the claim. Notice of the extent of the claim N~ith supporting data shall be deliv- ered ~•ithin sixty da}~s after such occurrence (unless ENGI- I~'EER allows an additional period of time to ascertain more accurate data in support of the claim) and shall be accom- panied by the claimant's written statement that the adjust- ment claimed is the entire adjustment to v.~hich the claimant has reason to believe it is entitled as a result of the occurrence of said event. All claims for adjustment in the Contract Time ~4 i~'arrant)~ and Guarantee: 13.1. CONTRACTOR warrants and guarantees to OWNER and ENGINEER that all \Vork will be in accor- dance v.~ith the Contract Documents and ti•ill not be defecri~•e. Prompt notice of all defects shall be given to CONTRAC- TOR. ,411 defecrire \\'ork, whether or not in place, may be rejected, corrected or accepted as provided in this Article 13. .4 ccess l0 li'orl:: 13.2. ENGII~'EER and ENGINEER'S representatives, other representatives of O\VNER, testing agencies and gov- ernmental agencies with jurisdictional interests v,~ill have access to the Work at reasonable times for their observation, inspecting and testing. CONTRACTOR shall provide proper and safe conditions for such access. Tests and Inspections: 13.3. CONTRACTOR shall giveENGINEERtimelynotice of readiness of the Work for all required inspections, tests or approvals. 13.4. If La~~s or Regulations of any public body having jurisdiction require any \Vork (or pan thereof) to specifically be inspected, tested or approved, CONTRACTOR shall assume full responsibility therefor, pay all costs in connection therewith and furnish ENGINEER the required certificates of inspection, testing or approval. CONTRACTOR shall also I~ n u u n 0 L be responsible for and shall pay all costs in connection with any inspection or testing required in connection ~~•ith OR'N- ER's or ENGINEER'S acceptance of a Supplier of materials or equipment proposed to be incorporated in the \\'ork, or of materials or equipment submitted for approval prior to CON- TRACTOR'spurchase thereof for incorporation in the \\'ork. The cost of all inspections, tests and approvals in addition to the above which are required by the Contract Documents shall be paid by O\\'NER (unless other~~ise specified). 13.5. All inspections, tests or approvals other than those required by Laws or Regulations of any public body having jurisdiction shall be performed by organizations acceptable to OWNER and CONTRACTOR (or by ENGINEER if so specified). 13.6. If any \\'ork (including the work of others) that is to be inspected, tested or approved is covered v.•ithout v.~ritten concurrence of ENGINEER, it must, if requested b}~ ENGI- NEER, be uncovered for observation. Such uncovering shall be at CONTRACTOR'S expense unless CONTRACTOR has given ENGINEER timely notice of CONTRACTOR'S inten- tion to cover the same and ENGINEER has not acted »•ith reasonable promptness in response to such notice. 13.7. Neither observations by ENGINEER nor inspec- tions, tests or approvals by others shall relieve CONTRAC- TOR from CONTRACTOR'S obligations to perform the \'1'ork in accordance ~~•ith the Contract Documents. Uncovering li'ork: l 13.8. if any Work is covered contrary to the written request of ENGINEER, it must, if requested by ENGINEER, be uncovered for ENGINEER'S observation and replaced at CONTRACTOR'S expense. 13.9. If ENGINEER considers it necessary or advisable that covered \~Jork be observed by ENGI\EER or inspected or tested by others, CONTRACTOR, at ENGI`~'EER's request, shall uncover, expose or others+~ise make available for obser~•ation, inspection or testing as ENGINEER may require, that portion of the \\'ork in question, furnishing all necessary labor, material and equipment. if it is found that such \\'ork is defective, CONTRACTOR shall bear all direct, indirect and consequential costs of such uncovering, expo- sure, observation, inspection and testing and of satisfactory reconstruction, (including but not ]invited to fees and charges of engineers, architects, attorne}'s and other professionals), and O\tJNER shall be entitled to an appropriate decrease in the Contract Price, and, if the parries are unable to agree as to the amount thereof, may make a claim therefor as provided in Article ll. If, however, such \\'ork is not found to be defective, CONTRACTOR shall be allowed an increase in the Contract Price or an extension of the Contract Time, or both, directly attributable to such uncovering, exposure, observation, inspection, testing and reconstruction; and, if the parties are unable to agree as to the amount or extent thereof, CONTRACTOR may make a claim therefor as pro- vided in Articles I1 and 12. Ox•ner Ma~• Stop the li'ork: 13.]0. if the Work is defective, or CONTRACTOR fails to supply sufficient skilled workers or suitable materials or equipment, or fails to furnish or perform the \\'ork in such a ~vay that the completed \\'ork will conform to the Contract Documents, OR'NER may order CONTRACTOR to stop the \\'ork, or any portion thereof, until the cause for such order has been eliminated; however, this right of OR'NER to stop the Work shall not give rise to any duty on the part of OV1?vER to exercise this right for the benefit of CONTRACTOR or any other party. Correction or Removal of Defective li'ork: 13. ] I . if required by ENGINEER, CONTRACTOR shall promptly, as directed, either correct all defective Work, whether or not fabricated, installed or completed, or, if the \\'ork has been rejected by ENGI`~EER, remove it from the site and replace it with nondefectire \4'ork. CONTRACTOR shall bear all direct, indirect and consequential costs of such correction or removal (including but not limited to fees and charges of engineers, architects, attorne}~s and other profes- sionals) made necessary thereby. One }'ear Correction Period: ]3.12. ]f ~~~ithin one year after the date of Substantial Completion or such loncer period of time as may be pre- scribed by Laws or Regulations or by the terms of any appli- cable special guarantee required b}~ the Contract Documents or by any specific provision of the Contract Documents, any V1'ork is found to be defective, CONTRACTOR shall promptly, without cost to 0\\'NER and in accordance with OWNER'S written instructions, either correct such defective \4'ork, or, if it has been rejected by OWNER: remove it from the site and replace it ~;•ith nondefecrir•e Work.: If CONTRACTOR does not prompt]}~ comply With the terms of such instructions, or in an emergency where delay «~ould cause serious risk of loss or damage, 0\\'NER may have the defective Work cor- rected or the rejected V1ork removed and replaced, and all direct, indirect and consequential costs of such removal and replacement (including but not limited to fees and charges of engineers, architects, attorneys and other professionals) Will be paid by CONTRACTOR. In special circumstances where a particular item of equipment is placed in continuous service before Substantial Completion of all the Work, the correction period for that item may start to run from an earlier date if so provided in the Specifications or by R'ritten Amendment. Acceptance of Defectii~ li'ori;: 13.13. lf, instead of requiring co>7ection or removal and replacement of defective \\'ork, OWNER (and, prior to ENGINEER'S recommendation of final pa}~ment, also ENGINEER) prefers to accept it, OV~'NER may do so. CON- TRACTOR shall bear all direct, indirect and consequential 25 costs attributable to OWNER's evaluation of and determi- nation toaccept such dejecri~•e Rork (such costs to be approved by ENGINEER as to reasonableness and to include but not be limited to fees and charges of engineers, architects. attor- neys and other professionals). lfany such acceptance occurs prior to ENGINEER'S recommendation of final payment, a Change Order will be issued incorporating the necessary revi- sions in the Contract Documents with respect to the \\'ork; and OWNER shall be entitled to an appropriate decrezse in the Contract Price, and, if the parties are unable to agree as to the amount thereof, 0\\'NER may make a claim therefor as provided in Article 1 ]. If the acceptance occurs after such recommendation, an appropriate amount will be paid by CONTRACTOR to OR'NER. ARTICLE 14-PAY?~4ENTS TO CONTRACTOR ,AND COMPLETION Schedule of 1'alues: 14.1. The schedule of values established as provided in paragraph 2.9 will serve as the basis for progress payments and will be incorporated into a form of Application for Pay- ment acceptable to ENGINEER. Progress payments on account of Unit Price \\'ork will be based on the number of units completed. Application for Progress Pa}•ment: 14.2. At least t~+-enty days before each progress payment is scheduled (but not more often than once a month), CON- TRACTOR shall submirto ENGINEER for review an Appli- cation for Payment filled out and signed by CONTRACTOR covering the Rork completed as ofthe date ofthe Application and accompanied by such supporting documentation as is required by the Contract Documents. if payment is requested on the basis of materials and equipment not incorporated in the \\'ork but delivered and suitably stored at the site or at another location agreed to in writing, the .Application for Payment shall also be accompanied by a bill of sale. invoice or other documentation warranting that DWNER has received the materials and equipment free and clear of all liens. charges, security interests and encumbrances (ti~hich are hereinafter in these General Conditions referred to as "Liens") and evidence that the materials and equipment are covered by appropriate property insurance and other arrangements to protect 0\\'NER's .interest therein. all of ~t hich will be sat- isfactory to OWNER. The amount of retainage with respect to progress payments ~~•ill be as stipulated in the .Agreement. i Ol•i:\'ER .Ala}• Correct Defective Ai'ork: 13.14. If CONTRACTOR fails ~•ithin a reasonable time after written notice of ENGINEER to proceed to correct and to correct defective V~'ork or to remove and replace rejected Work as required by ENGINEER in accordance v. ith para- graph 13.1 ], or if CONTRACTOR fails to perform the \\'ork in accordance U~ith the Contract Documents, or if CO\'- TRACTOR fails to comply ~~ith any other provision of the Contract Documents, O\\'NER may, after seven days' writ- ten notice to CONTRACTOR. correct and remedy any such deficiency. In exercising the rights and remedies under this paragraph 0\\'NER shall proceed expeditiously. To the extent necessary to complete corrective and remedial action. O\\ 1'ER ma~• exclude CONTRACTOR from all or part of the site, take possession of all or pan of the \\'ork, and suspend CO\- TRACTOR's services related thereto, take possession of CONTRACTOR'S tools, appliances, construction equipment and machinery at the site and incorporate in the \\'ork all materials and equipment stored at the site or for which O\'~'\ ER has paid CONTRACTOR but which are stored elsewhere. CONTRACTOR:"shall allow OWNER, O\\'NER's represen- tatives, agents an_ d employees such access to the site as may be necessary to.enable OWNER to exercise the rights and remedies under this paragraph. All direct, indirect and con- segtiential costs of OWNER in exercising such rights and remedies will be charged against CONTRACTOR in an amount approved as to reasonableness by ENGINEER, and a Change Order v,•ill be issued incorporating the necessary revisions in the Contract Documents with respect to the \\'ork; and OWNER shall be entitled to an appropriate decrease in the Contract Price, and, if the parties are unable to agree as to the amount thereof, OW?3ER may make a claim therefor as provided in Article 1l. Such direct, indirect and consequen- tial costs will include but not be limited to fees and charges of engineers, architects, attorne~~s and other professionals, all court and arbitration costs and all costs of repair and replacement of work of others destroyed or damaged by correction, removal or replacement of CONTR.ACTOR's defective \\'ork. CONTRACTOR shall not be allowed an extension of the Contract Time because of any delay in per- formance ofthe Work attributable to the exercise by O\\'I~'ER of ON'NER's rights and remedies hereunder. 26 C0.'~'TRACTOR's AA'arrant}• ojTitle: 14.3. CONTRACTOR warrants and guarantees that title to all \\'ork, materials and equipment covered by any Appli- cation for Payment, whether incorporated in the Project or not, will pass to O\\'NER no later than the time of payment free and clear of all Liens. Reti•iew ojApplications jor Progress Pa}•ment: 14.4. ENGINEER will; within ten days after receipt of each Application for Payment, either indicate in writing a recommendation of payment and present the .Application to O\\';~TER, or return the Application to CONTRACTOR indi- cating in writing ENGINEER'S reasons for refusing to rec- ommend payment. In the latter case, CONTRACTOR may make the necessary corrections. and resubmit the Applica- tion. Ten da~~s after presentation of the ,Application for Pay- ment with ENGII~'EER's recommendation, the amount rec- ommended a>ill (subject to the provisions of the last sentence of paragraph 14.7) become due and when due will be paid by O1\'NER to CONTRACTOR. I4.S. ENGINEER'S recommendation of any pa~~ment requested in an Application for Payment will constitute a r 0 0 u ~i u 0 i 0 0 0 representation by ENGINEER to O\~JNER, based on ENGI- NEER'S on-site observations of the \\'ork in progress as an experienced and qualified design professional and on ENGI- N'EER's review of the Application for Payment and the accompanying data and schedules that the \\'ork has pro- gressed to the point indicated; that, to the best of ENGI- NEER'S kno~~~ledge, information and belief, the quality of the Rork is in accordance with the Contract Documents (subject to an evaluation of the Rork as a functioning v.-hole prior to or upon Substantial Completion, to the results of any subsequent tests called for in the Contract Documents, to a final determination of quantities and classifications for Ltnit Price Vdork under paragraph 9.10, and to any other qualifi- cations stated in the recommendation); and that CONTRAC- TOR is entitled to payment of the amount recommended. However, b}' recommending any such payment ENGINEER ~~•ill not thereby be deemed to have represented that exhaus- tive or continuous on-site inspections have been made to check the quality or the quantity of the Rork beyond the responsibilities specifically assigned to ENGINEER in the Contract Documents or that there may not be other matters or issues between the parties that might entitle CONTRAC- TOR to be paid additionally by OWNER or O\\'NER to withhold payment to CONTRACTOR. 14.6. ENGINEER'S recommendation of final payment ~~~ill constitute an additional representation by ENGINEER to OWNER that the conditions precedent to CONTRAC- TOR'sbeing entitled to final pa}~ment as set forth in paragraph 14.13 have been fulfilled. 14.7. ENGINEER may refuse to recommend the ~~•hole or any part of any payment if, in ENGINEER'S opinion, it mould be incorrect to make such representations to O\\'N'ER. ENGINEER may also refuse to recommend any such pay- ment, or, because of subsequently disco~~ered evidence or the results of subsequent inspections or tests, nullif}~ any such payment previously recommended, to such extent as may be necessary in ENGINEER'S opinion to protect O\~'NER from loss because: 14.7. I. the 1\'ork is defectire, or completed Work has been damaged requiring correction or replacement, 14.7.2. the Contract Price has been reduced by \\'rit- ten .Amendment or Change Order, 14.7.3. OWNER has been required to correct defec- ti1~e Work or complete \'~'ork in accordance with paragraph 13.14, or 14.7.4. of EN'GINEER'S actual knov.~ledge of the occurrence of any of the events enumerated in paragraphs 15.2.1 through ]5.2.9 inclusive. O\\'NER may refuse to make pa}~ment of the full amount recommended by ENGINEER because claims have been made against O\~'N'ER on account of CONTRACTOR'S per- formance or furnishing of the V~'ork or Liens have been filed in connection with the Work or there are other items entitling OWNER to a set-off against the amount recommended, but Oy'~'N'ER must give CONTRACTOR immediate written notice (with a copy to ENGINEER) stating the reasons for such action. Substantial Completion: 14.8. \\'hen CONTR~.CTOR considers the entire \'~'ork ready for its intended use CONTRACTOR shall notify O\~.'NER and ENGINEER in ~•riting that the entire \\'ork is substantially complete (except for items specifical]}• listed by CONTRACTOR as incomplete) and request that ENGI- NEER issue a certificate of Substantial Completion. \\'ithin a reasonable time thereafter; O\\'NER; CONTRACTOR and ENGINEER shall make an inspection of the \\'ork to deter- mine the status of completion. if ENGINEER does not con- siderthe \\'ork substantially complete, ENGINEER will notify CONTRACTOR in writing giving the reasons therefor. if ENGINEER considers the \'1'ork substantially complete, ENGINEER will prepare and deliver to 0\\'NER a tentative certificate of Substantial Completion ~~~hich shall fix the date of Substantial Completion. There shall be attached to the certificate a tentative list of items to be completed or cor- rected before final payment. O\\';~ER shall have seven days after receipt of the tentative certificate during ~~•hich to make written objection to ENGINEER as to any provisions of the certificate or attached list. lf, after considering such objec- tions, ENGINEER concludes that the V~'ork is not substan- tially complete, ENGINEER will within fourteen days after submission of the tentative certificate to OWNER notify CONTRACTOR in writing, stating the reasons therefor. }f, after consideration of OR'NER's objections, ENGINEER considers the \\'ork substantially complete. ENGINEER will ~•ithin said fourteen days execute and deliver to OWNER and CONTRACTOR a definitive. certificate of Substantial Completion (with a revised tentative list of items to be com- pleted orcorrected) reflecting such changes from the tentative certificate as ENGINEER believes justified after consider- ation of any objections from OWNER: At the time of delivery of the tentative certificate of Substantial Completion ENGI- NEER will deliver to 0\\'NER and CONTRACTOR a written recommendation as to division of responsibilities pending final payment bet~~een O1~JN'ER and CONTRACTOR with respect to security, operation, safety, maintenance, heat, utilities, insurance and warranties. Unless O\'~'N'ER and CONTRACTOR agree otherwise in U~riting and so inform ENGINEER prior to ENGINEER'S issuing the definitive certificate of Substantial Completion, ENGIN'EER'S afore- said recommendation will be binding on 0\'JN'ER and CON- TRACTOR until final pa}~ment. 14.9. O\'~'NER shall have the right to exclude CON- TRACTORfrom the \'i'ork after the date of Substantial Com- pletion,but OWNER shall allow CONTRACTOR reasonable access to complete or correct items on the tentative list. Partial L'tili:,ation: 14.10. Use by OWNER of any finished part of the V~'ork, which has specifically been identified in the Contract Docu- 27 ments, or which OWNER, ENGINEER and CONTR4C- TOR agree constitutes a separately functioning and useable part of the \\'ork that can be used by O\'~'NER without sig- nificant interference ~;•ith CONTR4CTOR's performance of the remainder of the \\'ork, may be accomplished prior to Substantial Completion of al] the \\'ork subject to the follo~~•- ing 14.]0.3. 1.'0 occupancy or separate operation of part of the \\'ork ~~ill be accomplished prior to compliance with the requirements of paragraph 5. ] 5 in respect of property insurance. Final Inspection: u 14.10.1. O\\'NER at any time may request CON- TRACTOR in writing to permit OV~'NER to use any such part of the Rork which OR'NER believes to be ready for its intended use and substantially complete. If CON- TRACTORagrees. CONTRACTOR ~~.~ill certify to O\\~ ER and ENGINEER that said part of the Rork is substantially complete and request EI~'GI~'EER to issue a certificate of Substantial Completion for that part of the \i'ork. CON- TRACTOR at any time may notify O\\'NER and E'~GI- NEER in writ3ngthat CONTRACTOR considers arty such part of the V1'ork ready for its intended use and substan- tially complete and request ENGINEER to issue a certif- icate of Substantial Completion for that part of the \\'ork. R'ithin a reasonable time after either such request. O\'~~ ER, CONTRACTOR and ENGINEER shall make an inspec- tion of that part of the Work to determine its status of completion. If ENGINEER does not consider that pan of the \\'ork to be substantial]}~ complete, ENGINEER ~~il] notif}' O\\'NER and CONTRACTOR in writing giving the reasons therefor. if ENGINEER considers that part of the Work to be substantially complete, the provisions of para- graphs ]4.8 and 14.9 v.•ill apply v.•ith respect to certification of Substantial Completion of that part of the \\'ork and the division of responsibility in respect thereof and access thereto. 14.10.3. O\~1'NER may at any time request CON- TRACTOR in writing to permit OWNER to take over operation of any such part of the \\'ork although it is not substantially complete..A copy of such request will be sent to ENGINEER and ~~•ithin a reasonable time there- after OWNER, CONTRACTOR and ENGINEER shall make an inspection of that part of the Work to determine its status of completion and ~t~i]] prepare a list of the items remaining to be completed or corrected thereon before final payment. if CONTRACTOR does not object in writ- ing to OWNER and ENGINEER that such part of the \\'ork is not ready for separate operation by OR'NER, ENGINEER mill finalize the list of items to be completed or corrected and will deliver such list to OWNER and CONTRACTOR together with a v~•ritten recommendation as to the division of responsibilities pending final pa}•ment between OWNER and CONTRACTOR with respect to security, operation, safety, maintenance, utilities, insur- ance, Warranties and guarantees for that part of the \\'ork which Hill become binding upon OWI~'ER and CON- TRACTOR at the time trhen O\~'NER takes over such operation (unless they shall have otherwise agreed in ~•rit- ingand so informed ENGINEER). During such operation and prior to Substantial Completion of such part of the \\'ork, 01'f'NER shall allow CONTRACTOR reasonable ccess to complete or correct items on said list and to mplete other related !\'ork. ~g 14.11. Upon written notice from CONTRACTOR that the entire Vr'ork or an agreed portion thereof is complete, ENGI- NEER will make a final inspection with OWNER and CON- TRACTOR and will notify CONTR4CTOR in writing of all particulars in which this inspection reveals that the Work is incomplete or defectit•e. CONTRACTOR shall immediately take such measures as are necessary to remedy such defi- ciencies. Final ,4pplication for Pal•ment: 14.12. After CONTRACTOR has completed all such cor- rections to the satisfaction of ENGINEER and delivered all maintenance and operating instructions, schedules, guaran- tees, Bonds, certificates of inspection, marked-up record documents (as provided in paragraph 6.19) and other docu- ments-a11 as required b~~ the Contract Documents, and after ENGINEER has indicated that the \\'ork is acceptable (sub- ject to the provisions of paragraph 14.]6), CONTRACTOR may make application for final payment following the pro- cedure for progress payments. The final .Application for Pay- ment shall be accompanied by all documentation called for in the Contract Documents, together with complete and legally effective releases or ~•aivers (satisfactory• to OWNER) of all Liens arising out of or filed in connection with the Work. In lieu thereof and as approved by OWNER, CONTRACTOR may furnish receipts or releases in full; an affidavit of CON- TRACTOR that the releases and receipts include all labor, services, material and equipment for which a Lien could be filed, and that all pa}~rolls, material and equipment bills, and other indebtedness connected v.•ith the Rork for which O\\'NER or O\§'1~'ER's property might in any ~•ay be respon- sible, have been paid or other~+•ise satisfied; and consent of the surety, if any, to final pa}~ment. if any Subcontractor or Supplier fails to furnish a release or receipt in full, CON- TRACTOR may furnish a Bond or other collateral satisfac- tory to OV1'NER to indemnify 0\\'NER against any Lien. Final Pa~•ment and .4 cceptance: 14.13. lf, on the basis of ENGINEER'S observation of the Work- during construction and final inspection, and ENGINEER'S review of the final Application for Pa}•ment and- accompan}ping documentation-all as required by the Contract Documents, ENGINEER is satisfied that the \\'ork has been completed and CONTRACTOR'S other obligations under the Contract Documents have been fulfilled, ENGI- NEER ~•ill, within ten days after receipt of the final Appli- cation for Payment, indicate in writing ENGINEER'S rec- ommendation of pa}~ment and present the Application to OWNER for payment. Thereupon ENGINEER will give written notice to O\VNER and CONTRACTOR that the \\'ork is acceptable subject to the provisions of paragraph 14.16. r u 0 l Otherwise, E>;GI';EER will return the Applirtion to CO'~- TRaCTOR, indiczting in v.•riting the reasons for refusing to recommend final pa~:ment, in which rse CO\TRACTOR shell mike the necess2n~ corrections znd resubmit the .~ppli- cation. Thirty d2ys 2fter presentztion to O\'.'\ER of the Application znd 2ccompanying documentztion, in zppmpri- zte form znd substance, 2nd With E:~GI\EER's recommen- da;ion znd notice of acceptzbiliry, the zmount recommended by E:~~GI:~ EER ~•ill become due znd ~°ill be p2id by O\~'1ER to CO';TR~CTOR. 14.14. lf, through no fzult of CO:vTR~CTOR, final com- pletion of the \i'ork is significzntly del2yed znd if E'~GI- :~EER so confirms, O\\'`:ER shall, upon receipt of CO:~'- TR,CTOR's fir,zl .Spplirtion for Pzyment 2nd recommen- dation of E`~GI'~EER. and without ter;ninzung the agree- ment, make payment of the balance due for that portion of the \\'ork fulh• corpleted znd accepted. Jf the remzinir,e ba'.znce to be held by 0\i'\ER for \\'or k not fully completed or corrected is Jess than the retair,age stipul2ted in the Agree- ment, and if Bonds h2~e been furnished zs required in pzra- graph 5.1, the ~~•ritten consent of the swety to the pzyment of the balance due for that portion of the \\'ork fully com- pleted and accepted shall be submitted by CO\TRyCTOR to E'\GI'`EER v.•i:h the .Spplication for such p2~ merit. Such p2yment shall be ;,,ado under the terms and conditions gov- erning final payment, except that it shall net constitute a ~•ziver of claims. Cor,rractor's Continuing Obligation: 14.15. CO17R;CTOR's obligation to perser m znd com- pete the 1\'ork in acco;dznce »~ith the Comact Documents shall be abso)ute. \either recommendztion of any progress or final pzyment M• E';~GI\EER, nor the issuance of a cer- tificate of Subst2ntial Completion, nor zny payment by O\\'\ER to CO\TRACTOR under the Contact Documems, nor zny use or occupancy of the \\'ork or zny pan thereof by 01\"DER, nor zr,y act of acceptznce by 0\+"\ER nor zny failure to do so. nor ar,y revie~~• and 2ppr o~ 21 of a Shop Drawing or sample subn-,ission. nor the issuance of z notice of zcceptzbility by E'~ GJ\ EER pur su2nt to paagaph 14.13, nor any correction of defcctire \\'ork by 0\i'\ER a•i11 con- stitute zn accept2nce of \\'ork not in accor dznce ~~•ith the Contract Documents or a release of CO\TR.,CTOR's obli- g2lion toperform the \\'ork in accordance v.•ith the Contract Documents (except as provided in paragaph 14.161. Waiver of Cloim:: 14.16. The mzkirg and acceptznce of final payment v.•ill constitute: 14.16.1. a v.•aiver of zll claims by O\~'1ER zgzinst CO\TRACTOR, except clzims arising from unsettled Liens, from defictire \\'ork zppearing after final inspec- tion pursuant to paracraph l4. ] l or from failure to comply ~•ith the Contact Documents or the terms of zny special guzrzntees specified therein; ho~rever, it wit) not consti- tute a a•ziver by 0\i:`:ER of zny rights in respect of ~9 CONTR~SCTOR's continuing obligztions under the Con- tract Documents; znd 14.16.3. a waiver of all clzims by CO:~'TRyCTOR agzinst O\\';: ER other than those pre~•ioush• made in vrit- ing and still unsettled. ARTICLE 15-SL'SPE:~ S1O:~ OF \\'ORK .4:~'D TERMI'`ATIO'~1 Ox•ner.n~o~• Suspend li'ork: 15.1. O\'`';DER may, zt any time 2nd without cause. sus- pend tht \\'ork or am• portion thereof for a period of not more than ninety d2ys by notice in ~•riting to CO:~TRyCTOR 2nd E';GI'\EER which v.•ill fix the date on ~•hich \\'ork ~~ill be resumed. CO'~TR4CTOR shall resume the \\'ork on the date so fixed. C0'~TR~CTOR shall be ~lloa`ed an increase in the Contract Price or zn extension of the Contract Time, or both, directly zttribut2ble to zny suspension if CO'~TR.=ACTOR makes 2n zpproved elzim therefor 2s provided in Articles l 1 2nd 12. OH•ner Afo~• Terminate: 15.3. L'pon the occurrence of zr.y one or more of the following events: l5?.1. if CO';TR•~CTOR co:.,mences a volunta-~ czse under any chapter of the Bankruptcy Code (Title 11, United Stztes Code), as noa• or hereafter in e;Tect, or if CO\'- TR? CTOR takes an~• equivalent or similar action by filing a petition or otherv.•ise under zny other federal or state }zw in effect zt such time relating to the bankruptcy or insolvency; 15.3.3.. if a petition is filed 2gainst C0\TR4CTOR under zny. chzpter of the, Eankn!p>cy Code as now or herezfter in effect at the time. of filing, or if a petition is filed seeking zny such equivalent or sirnil2r relief zgzinst CO1~TR~CTOR under zny. other fedeal or state law in effect at the time. relating to.ban}:ruptcy or insolvency; 15.2.3. if CO:.'TR~CTOR makes 2 genera3 assignment for the benefit of creditors; 15.2.4•. if a trustee, receiver, custodian or zgent of COA'TR~CTOR is zppoimed under applicable Izv,• or under contract, ~~hose appointment or authority to t2ke charge of properly of COtiTR~CTOR is for the purpose of enforcing a Lien zgainst such property or for tht purpose of general administation of such properly for the benefit of CO\TRSCTOR's creditors; 15.2.5. if CO'~TRACTOR admits in ~•riling an inzbil- ity topay its debts generally zs they become due; 15.2.6. if CO;vTR,gCTOR persistcntlyfails to perform the \'~'ork in accordance with the Contract Documents u (including, but not limited to, failure to supply sufficient skilled workers or suitable materials or equipment or failure to adhere to the progress schedule established under paragraph 2.9 as revised from time to time); 15.2.7. if CONTRACTOR disregards Laws or Reeu- lations of any public body having jurisdiction; IS.3, Where CONTR.4CTOR's services have been so terminated by OWNER, the termination will not affect any rights or remedies of OWNER against CONTRACTOR then existing or which may thereafter accrue. Any. retention or payment of moneys due CONTRACTOR by OWNER will not release CONTRACTOR from liability. 1 CI' 15.2.8. if CONTRACTOR disregards the authority of ENGINEER; or 15.2.9. if CONTRACTOR otherwise violates in any substantial uay any provisions of the Contract Docu- menu; OWNER may, after giving CONTRACTOR (and the surety, if there be on.e) seven da~•s' written notice and to the extent permitted by Laws and Reeulations, terminate the services of CONTRACTOR, exclude CONTRACTOR from the site and take possession of the \'~'ork and of al] CONTRACTOR's tools, appliances, construction equipment and machinery at the site and rise the same to the full extent they could be used by CONTRACTOR (without liability to CONTRACTOR for trespass or conversion), incorporate in the \\'ork all materials and equipment stored at the site or for which OVr'NER has paid CONTRACTOR but which are stored elseu-here, and finish the Work as 0\~'NER may deem expedient. In such case CONTRACTOR shall not be entitled to recei~•e anv further payment until the ~"v'ork is finished. If the unpaid balance of the Contract Price exceeds the direct, indirect and consequential costs of completing the V1'ork (including but not limited to fees and charges of engineers. architects, attor- neys and other professionals and court and arbitration costs) such excess will be paid to CONTRACTOR. If such costs exceed such unpaid balance, CONTRACTOR shall pay the difference to OWNER. Such costs incurred by OWNER will be approved as to reasonableness by ENGINEER and incor- porated in a Change Order, but when exercising any rights orremedies underthis paragraph OW'NERshall not be required fo obtain the~lowest price for the Work performed. 15.4. L'pon seven days' written notice to CONTRAC- TOR and ENGINEER, OWNER may, without cause and without prejudice to any other right or remedy, elect to aban- don the Work and terminate the Agreement. In such case, CONTRACTOR shall be paid for all Work executed and any expense sustained plus reasonable termination expenses, which will include, but not be limited to, direct, indirect and con- sequential costs (including, but not limited to, fees and charges of engineers, architects, attorneys and other professionals and court and arbitration costs). Contraclor.llay Stop t~'ork or Terminate: 15,5. If, through no act or fault of CONTRACTOR, the \~'ork is suspended for a period of more than ninety days by O\L'N ER or under an order of court or other public authority, or ENGINEER fails to act on any Application for Payment within thirty daps after it is submitted, or OWNER fails for thirty days to pay CONTRACTOR any sum finally deter- mined to be due, then CONTRACTOR may, upon se~•en days' written notice to OWNER and ENGINEER, terminate the Agreement and recover from OV1'NER payment for all Work executed and any expense sustained plus reasonable termination expenses. In addition and in lieu of terminating the Agreement, if ENGINEER has failed to act on an Appli- cation for Payment or OWNER has failed to make any pay- ment as aforesaid. CONTRACTOR may upon seven days' written notice to O\'`-NER and ENGINEER stop the «'ork until payment of all amounts then due. The provisions of this paragraph shall not relieve CONTRACTOR of the obligations under paragraph 6.'_9 to carry on the Work in accordance with the progress schedule and without delay during disputes and disagreements with O\'v%NER. [The remainder of this page was left blank intentionally.] 30 ~'I ~J ARTICLE 16-ARBITRATION 16.1. All claims, disputes and other matters in question betv~een O\'~~NER and CONTRACTOR arising out of, or relating to the Contract Documents or the breach thereof (except for claims v~•hich have been ~~•aived by the making or acceptance of final payment as provided by para_raph ]4.]6) will be decided by arbitration in accordance ~~ith the Con- struction Industry Arbitration Rules of the American Arbi- tration Association then obtaining subject to the limitations of this Article 16. This agreement so to arbitrate and any other agreement or consent to arbitrate entered into in accor- dznce here~~.ith as provided in this Article ]6 gill be specifi- callyenforceable under the prevailing law of any court having jurisdiction. 16.2. No demand for arbitration of any claim. dispute or other matter that is required to be referred to ENGINEER initialh~ for decision in accordance with paragraph 9.1 I ~~ ill be made until the earlier of (a) the date on ~~ hich ENGINEER has rendered a decision or tb) the tenth day after the parties have presented their evidence to ENG]\EER if a written decision has not been rendered by ENGINEER before that date. No demand for arbitration of any such claim. dispute or other matter '.ill be made later than thirty days after the date on which ENG1\EER has rendered a ~~ritten decision in respect thereofin accordance ~~ith paragraph 9.] 1: and the failure to demand arbitration ~~ ithin said thirty da} s' period shall result in ENGINEER'S decision being final and binding upon OWNER and CONTRACTOR. If ENGI\EER renders a decision after arbitration proceedings have been initiated, such decision maybe entered as evidence but ~~ ill not supersede the arbitration proceedings. except ~~here the decision is acceptable to the parties concerned. '~'o demand for arbitra- tion of any ~+ritten decision of ENGINEER rendered in accordance with paragraph 9.10 ~~ ill be made later than ten daps after the pan}• making such demand has delivered writ- ten notice of intention to appeal as provided in paragraph 9.10. 16.3. Notice of the demand for arbitration ~~ ill be filed in v.~riting with the other party to the Agreement and with the American Arbitration Association, and a copy will be sent to ENGINEER for information. The demand for arbitration will be made within the thirty-day or ten-day period specified in paragraph 16.2 as applicable, and in all other cases v~•ithin a reasonable time after the claim, dispute or other matter in question has arisen, and in no event shall any such demand be made after the date v~~hen institution of legal or equitable proceedings based on such claim, dispute or other matter in question would be barred by the applicable statute of limi- tations. 16.4. No arbitration arising out of or relating to the Con- tract Documents shall include by consolidation. joinder or in any other. manner any other. person or entity (including ENGINEER, ENGINEER'S agents, employees or consul- tants) ~~~ho is not a parry to this contract unless: 16.4.1.. the inclusion of such other person or entity is necessary if complete relief is to be afforded among those ~~~ho are already parties to the arbitration, 16.4.2. such other person or entity is substantially involved in a question of laa~ or fact ~~.hich is common to those v, ho are already parties to the arbitration and ~~ hich v. ill arise in such proceedings, and 16.4.3, the written consent of the other person or entity sought to be included and of O~'~'NER and CONTRAC- TOR has been obtained for such inclusion. ~^hich consent shall make specific reference to this paragraph: but no such consent shell constitute consent to arbitration of any dispute not specificall}> described in such consent or to arbitration with any pan}• not specificall}• identified in such consent. ]6.5. The av.~ard rendered by the arbitrators v.~ill be final, judgment may be entered upon it in any court having juris- diction thereof, and ~~~ill not be subject to modification or appeal except to the extent permitted by Sections 10 and l 1 of the Federal Arbitration Act (9 U.S.C. ?;10,11). [The remainder of this page ~~ as left blank intentionally.] 31 II~ u ii 0 fl ARTICLE 17-MISCELLANEOUS Gi ring ,'~'oti ce: 17.1. R'henever any provision of the Contract Docu- ments requires the giving of written notice, it ~•ill be deemed to have been validly given if delivered in person to the indi- vidual or to a member of the firm or to an officer of the corporation for whom it is intended, or if delivered at or sent by registered or certified mail, postage prepaid, to the last business address known to the giver of the notice. Computation oJTime: 17.2.1. When any period of time is referred to in the Contract Documents by days, it will be computed to exclude the first and include the last day of such period. If the last day of any such period falls on a Saturday or Sunday or on a day made a legal holiday by the law of the applicable jurisdiction, such day v,•ill be omitted from the computa- tion. 17.2.2. A calendar day oftwenty-tour hours measured from midnight to the next midnight shall constitute a dav. General: 17.3. Should OWNER or CONTRACTOR suffer injury or damage to person or proper[}~ because of an}• error. omis- lion or act of the other party or of any of the other party's employees or agents or others for ti•hose acts the other party is Legally liable, claim will be made in writing to the other pan}~ within a reasonable time of the first observance of such injury or damage. The provisions of this paragraph 17.3 shall not be construed as a substitute for or a waiver of the pro- vision's of any applicable statute of limitations or repose. 17.4. The duties and obligations imposed by these Gen- eral Conditions and the rights and remedies available here- under to the parries hereto, and, in particular but v~~ithout limitation, the ~a~arranties, guarantees and obligations imposed uponCONTR4CTORbyparagraphs.6.30, 13.1, 13.12, 13.14, 14.3 and ]5.2 and all of the rights and remedies available to OWNER and ENGINEER thereunder, are in addition to, and are not to be construed in any ~i•ay as a limitation of, any rights and remedies available to any or all of them which are otherwise imposed or available by Laws or Regulations, by special ~~•arrant}' or guarantee or by other provisions of the Contract Documents, and the provisions of this paragraph ~~i11 be as effective as if repeated specifically in the Contract Documents in connection with each particular duty, obliga- tion, right and remedy to which they apply. All representa- tions, ~~arranties and guarantees made in the Contract Doc- uments will survive final pa}•ment and termination or com- pletion of the Agreement. 33 SUPPLEMENTAL CONDITIONS TABLE OF CONTENTS 1.0 General 2.0 Defined Terms (GC-1) 3.0 Contract Bonds, Workmen's Compensation and Insurance (GC-5) 4.0 Shop Drawings (GC-6.23) 5.0 "Or Equal" Equipment (GC-6.7) 6.0 Subcontractors and Suppliers (GC-6.8) 7.0 Separate Contractor Claims (New Section GC-7.5) 8.0 Engineer's Status During Performance of the Work (GC-9) 9.0 Correction Period (GC-13.12) 10.0 Unit Price Work (GC-11.9) 11.0 Application for Progress Payment (GC-14.2) 12.0 Lien Waivers (GC-14.2) 13.0 State of NN Withholding Requirements (GC-14.12) 14.0 Arbitration (GC-16) 15.0 Failure to Complete Work on Time 0 SUPPLEMENTAL CONDITIONS 1.0 GENERAL . These Supplementary Conditions amend or supplement the Standard General Conditions of the Construction Contract (EJCDC No. 1910-8, 1983 edition) and other provisions of the Contract Documents as indicated below. All provisions which are not so amended or supplemented remain in full force and effect. The reference in parenthesis for each item in these Supplementary Conditions corresponds to the relevant section of the General Conditions which is modified by the Supplementary Conditions. ' 2.0 DEFINED TERMS (GC-1) The terms used in these Supplementary Conditions which are defined in the Standard Conditions of the Construction Contract (No. ' 1910-8, 1983 edition) have the meanings assigned to them in the General Conditions. Completion Date(s): Shall be the date(s) stated in the Special Provisions for the completion of the work. ' 3.0 CONTRACT BONDS, WORHI~N'S COMPENSATION ~ INSURANCE (GC-5) ' A. Contract Bond (GC-5.1) Prior to signing the contract, the Contractor shall furnish a performance bond and a labor and material payment bond to the Owner for the full amount of the contract, based on the lump sum bid on the anticipated quantities and unit prices as determined by the Engineer. This bond shall have a maintenance guarantee for a period of two (2) years from final completion ' and acceptance cf the work. B. Liability Insurance (GC-5.3) The Contractor shall, as provided in the General Conditions, obtain insurance acceptable to the Owner in a company or companies acceptable to the Owner and shall furnish copies of all policies of insurance alon with certificates of insurance (except Workmen's Compensation Insurance, in which case a certificate of insurance is adequate) to the Ov,Tner at the time he executes the Contract. r The Contractor shall not commence work nor shall he allow his employees or subcontractors or anyone to commence work until all required insurance has been obtained and certificates of insurance submitted to the Owner. Supp 1 The Contractor shall take out and maintain at all times during the entire period of performance and until the work is accepted by the Owner under this contract the required policies of insurance. The limits of liability for the insurance required by paragraph 5.3 of the General Conditions shall provide coverage for not less than the amounts stated in the purchase order terms and conditions or greater where required by laws and regulations. (1) Worker's Compensation, etc., under paragraphs 5.3.1 and 5.3.2 of the General Conditions: - State: Statutory - Applicable Federal (e.cr. Longshoreman's): Statutory - Employer's Liability; $100,000 (2) Comprehensive General Liability under paragraphs 5.3.3 i through 5.3.6 of the General Conditions: - Bodily Injury (including products' liability): $250,000 $500,000 completed operations and Each Occurrence Annual Aggregate - Property Damage: $250,000 Each Occurrence $500,000 Annual Aggregate or combined single limit of $1,000,000 - Property Damage Liability insurance vaill provide explosion, collapse and underground coverages where applicable. - Personal Injury, with employment exclusion deleted: $500,000 Annual Aggregate (3) Comprehensive Automobile Liability under paragraphs 5.3.7 of the General Conditions: - Bodily Injury: $250,000 $500,000 Each Person Each Occurrence - Property Damage: $250,000 Each Occurrence or combined single limit of $1,000,000 n Supp 2 fl 0 C. Contractual Liability Insurance (GC-5.4) The Contractual Liability required by paragraph 5.4 of the General Conditions shall provide coverage for not less than the following amounts: - Bodily Injury: $500,000 - Property Damage: $250,000 $500,000 Each Occurrence Each Occurrence Annual Aggregate D. Owner's Liability Insurance (GC-5.5) The Owner shall be named and listed as additional insureds on the Contractor's general liability policy. The inclusion of more than one named insured shall not operate to impair the rights of one insured against another insured, and the coverages afforded shall apply as though separate policies had been issued to each insured. E, "All-Risk" Property Insurance (GC-5.6) Delete paragraph 5.6 of the General conditions in its entirety and insert the following in its place: "Contractor shall purchase and maintain until final payment property insurance upon the work at the site to the full insurable value thereof (subject to such deductible amounts as may be provided in these Supplementary Conditions or required by laws and regulations).. -This insurance shall include the interests of Owner, Contractor, Subcontractors, Engineer and Engineer's consultants in the work (all of whom shall be listed as insureds or additional insured parties), shall insure against the perils of fire and extended coverage, shall include "all-risk" insurance for physical loss and damage including theft, vandalism and malicious mischief, collapse and water damage, and such other perils as may be provided in these Supplementary Conditions, and shall include damages, losses and expenses arising out of or resulting from any insured loss or incurred in the repair or replacement of any insured property (including but not limited to fees and charges of engineers, architects, attorneys and other profes- sionals). If not covered under the "all-risk" insurance or otherwise provided in these Supplementary Conditions, Contrac- tor shall purchase and maintain similar property insurance on portions of the work stored on and off the site or in transit when such portions of the work are to be included in an application for payment. The policies of insurance required to be purchased and maintained by Contractor in accordance with this paragraph 5.6 shall comply with the requirements of GC-5.8." Supp 3 F. Boiler and Machinery Insurance GC-5.7) Delete paragraph 5.7 of the General Conditions in its entirety and insert the following in its place: "Contractor shall purchase and maintain such boiler and machinery insurance or additional property insurance as may be required by the Supplementary Conditions or Laws and Regulations which will include the interests of Owner, Contractor, Subcontractors, Engineer and Engineer's consul- tants in the work, all of whom shall be listed as insured or additional insured parties. All responsibility for the safety of the work involving any steam boiler or any machinery, including the steam boiler and machinery itself, shall remain with the Contractor on that part of the work, and shall so remain until after testing of the equipment has shown it to be acceptable to the Ov,Tner's boiler and machinery insurer, if any, and after such work has been accepted in writing by the Ovrner . " G. Receipt and Application of P and GC-5.13) ~j L rty Insurance Proceeds (GC-5.12 ' If Contractor is required to purchase property insurance, then any insured loss will be adjusted with Contractor and payable to Contractor. H. Certificates of Insurance Certificates and endorsements of all required insurance policies thereof shall be submitted prior to commencing the work. Proof of insurance shall be submitted directly to the Owner for review and approval with a record copy only to the Engineer for his files. The Contractor shall not begin any work until the Owner has reviewed and approved the Insurance Certificate. If the Insurance Agent executing the Insurance Certificate indicates that there are special limitations on the insurance policy, then a copy of policy exclusions must be submitted with the Insurance Certificate. Insurance policies need not be submitted unless specifically requested by the Owner. ~J ~l 4.0 SHOP DRAWINGS (GC-6.23) The Contractor shall submit shop dravaings for approval by the Engineer for all materials to be used on the project. These shall include pipes, fittings, hydrants, manholes, castings, silt fence, signage, design mixes, etc. A minimum of six copies of each shall be supplied to the Engineer. 5.0 "OR EQUAL" EQUIPMENT (GC-6.7) Major items of mechanical equipment, electrical equipment, and process equipment have been specified by name followed by the words "or equal". In all cases the dimensions shown an the plans are based on the named equipment. Supp 4 LJ ' It shall be fully acknowledged and understood that the furnishing and installing of any "or equal" equipment shall include the preparation and submission of all details, shop and construction ' drawings showing all modifications necessary to accommodate such equipment. It shall be further acknowledged and understood that if any "or ' equal" is bid, the bid shall include all costs necessary to make any and all architectural, structural, mechanical and electrical changes required to incorporate such equipment into the project. ' No extras will be allowed after the award of the Contract for any modifications required to install or properly operate "or equal" equipment. ' All "or equal" equipment shall conform to the requirements of the respective parts and sections of the plans and specifications. Guarantees shall also conform to the Contract Documents. i The. Contractor shall pay for all redesign costs associated with the retrofitting required for the installation and use of "or ' equal" equipment. 6.0 SUBCONTRACTORS AND SUPPLIERS (GC-6.8) ' Refer to the Instructions to Bidders and the Special Provisions for any further requirements regarding subcontractor and supplier approval. ' 7.0 SEPARATE CONTRAC _ TOR CLAIMS (New Section GC 7.5) Should Contractor cause damage to the work or property of any ' separate contractor at the site, or should any claim arising out of Contractor's performance of the work at the site be made by any separate contractor against Contractor, Owner, Engineer, the ' Construction Coordinator or any other person, Contractor shall promptly attempt to settle with such other contractor by agreement, or to otherwise resolve the dispute by arbitration or ' at law. Contractor shall, to the fullest extent permitted by laws and regulations, indemnify and hold Owner, Engineer and the Construction Coordinator harmless from and against all claims, damages, losses and expenses (including, but not limited to, fees ' of engineers, architects, attorneys and other professionals and court and arbitration costs) arising directly, indirectly or consequentially out of any action, legal or equitable, brought by ' any separate contractor against Owner, Engineer or the Construc- tion Coordinator to the extent based on a claim arising out of Contractor's performance of the work. Should a separate contractor ' cause damage to the work or property of Contractor or should the performance of work by any separate contractor at the site give rise to any other claim, Contractor shall not institute any action, legal or equitable, against Owner, Engineer or the ' Construction Coordinator or permit any action against any of them Supp 5 to be maintained and continued in its name or for its benefit in any court or before any arbiter which seeks to impose liability on or to recover damages from Owner, Engineer or the Construction Coordinator on account of any such damage or claim. If Contractor is delayed at any time in performing or furnishing work by any act or neglect of a separate contractor and Owner and Contractor are unable to agree as to the extent of any adjustment in contract time attributable thereto, Contractor may make a claim for an extension of time in accordance with Article 12 of the General Conditions. An extension of the contract time shall be Contrac- tor's exclusive remedy with respect to Owner, Engineer and Construction Coordinator for any delay, disruption, interference or hinderance caused by any separate contractor. This paragraph does not prevent recovery from Owner, Engineer or Construction Coordinator for activities that are their respective responsibili- ties. 8.0 ENGINEER'S STATUS DURING PERFORMANCE OF THE WORK (GC-9) This section is a supplement to Article 9--Engineer's Status During Construction of the General Conditions. A. Owner's Consultant The Engineer, as the design professional, will be-the Owner's consultant during the performance of the work. The duties and responsibilities and the limitations of authority of the Engineer as the Owner's consultant during this period are set forth in these Contract Documents and will not be extended without written consent of the Owner and the Engineer. In the event of an extension of the Engineer's duties and responsi- bilities, the Contractor will be provided with written notice of such amendment. B. Role as Interpreter The Engineer will be the initial interpreter of the terms and conditions of the Contract Documents and the judge of the performance thereunder. All matters relating to the execution and progress of the work, or the interpretation of or performance under the Contract Documents, shall be referred initially to the Engineer for decision which will be rendered promptly. The Engineer will issue such written interpretation of the Contract Documents (in the form of drawings or otherwise) as he may determine necessary which will be consistent with or reasonably inferable from the overall intent of the Contract Documents. C. Communications with Contractor All communications with the Contractor pertaining to perfor- mance of the work will normally be issued through the Engineer. J i~ ~;I u ii Supp 6 D. Resident Project Inspector The Resident Project Inspector will be either the Engineer or the Engineer's agent, as so designated. The Resident Project ' Inspector is responsible for assisting the Project Engineer in determining, in general, if the work is completed in accordance with the plans and specifications and Contract Documents. ' Communications pertaining to compliance submittals, written interpretations, and amendments shall be directed to the Engineer at his home office with copies to the Resident Project ' Inspector. Communications pertaining to day-to-day operations at the site ' shall be directed to the Resident Project Inspector. E. Authority to Disapprove or Reject Defective Work All equipment and materials used and all work done with at all times will be subject to the inspection, tests, and approval of the Engineer or his authorized representatives. ' The Engineer has the authority to disapprove or reject any work which is "defective". He also has the authority to require special inspection or testing of the-work. ' The Engineer has the authority to disapprove or reject any defective workmanship, equipment or materials. ' If the work is defective or the Contractor fails to supply sufficient skilled workmen or suitable equipment or materials, the Engineer. may order the Contractor to stop the work or any ' portion thereof until the cause for such order has been eliminated; however, this right of the Engineer to stop the work will not give rise to any duty on the part of the Engineer to exercise this right for the benefit of the Contractor or any ' other party. F. Limitations on Engineer's Responsibilities ' This article states the limitations on the Engineer's responsi- bility as between the Engineer and the Contractor. Neither Engineer's authority to act under these Contract Documents nor any decision made by him in good faith either to exercise or not exercise such authority will give rise to any duty or responsibility of the Engineer to the Contractor, any ' Subcontractor, supplier or manufacturer, any of their agents or employees, or any other person performing any of the work. The Engineer is not responsible for construction, safety precautions, and programs incidental thereto. Neither is he responsible for the Contractor's failure to perform the work in accordance with the Contract Documents. Supp 7 The Engineer is not responsible for the acts or omissions of any Contractor or any Subcontractor, Contractor's supplier or manufacturer, or any of his or their agents or employees. The presence or absence of the Engineer or his representative will not relieve the Contractor of any responsibility or of any guarantee of his performance. Neither will observation by the Engineer or his representative in any way be understood to relieve the Contractor of any .responsibility for proper supervision of the work at all times. The revieva and. acceptance of the Contractor's compliance submittals by the Engineer will be understood to be only for conformance with the design concept, for compliance with the intent of the Contract Documents, and to assist the Contractor in interpreting the Contract Documents, so as to preclude delivery of the equipment or materials not acceptable for the work. The Engineer's acceptance of compliance submittals will not place upon him any responsibility for any deviations from the requirements of the Contract Documents unless the Contrac- tor has in writing called the Engineer's attention to such deviation at the time of the submission and the Engineer has given written concurrence on the specific deviation. Such deviations will be included in a contract amendment. G. Engineer's Pay Estimates Any Engineer's pay estimate will constitute a representation by the Engineer to the Owner that work has progressed to the extent indicated. To the best of his knowledge, the quality of the work is in accordance with the Contract Documents, and the Contractor is entitled to payment of the amount shown in the Engineer's pay estimate. Rendering the Engineer's pay estimate is not an approval of the quality or .quantity of the work, the means or methods of construction, or the monetary methods used by the Contractor. The Engineer may refuse to render an Engineer's pay estimate for the whole or any part of any payment if, in his opinion, it would be an incorrect representation to the Ovaner. 9.0 CORRECTION PERIOD (GC-13.12) The correction period identified in paragraph 13.12 of the General Conditions is hereby amended to call for a two (2) year correction period, which shall commence after completion and acceptance of all the work identified in the plans and specifications. All other requirements of paragraph 13.12 shall remain in effect. 10.0 UNIT PRICE WORK (GC-11.9) Add the following paragraph: 1 0 J 7 ~1 ~~ Supp 8 ' "11.9.4 If the actual quantity of a unit-priced item varies more than 15% above or below the estimated quantity, an equitable adjustment in the contract price shall be negotiated ' upon demand of either the Ovaner or the Contractor. The equitable adjustment shall be based upon any increase or decrease in costs due solely to' the variation above 115% or below 85% of the estimated quantity." 11.0 APPLICATION FOR PROGRESS PAYMENT (GC-14.2) ' Change the last sentence to read as follows: "The Ovaner shall retain five (5%) percent of the amount of each payment until final completion and acceptance of all works covered by the Contract Documents." ' 12.0 LIEN WAIVERS (GC-14.2) The Contractor shall furnish partial or complete lien waivers along with each payment request. The lien waivers shall be ' submitted by the Contractor, all subcontractors, and all material suppliers on the project. No payment will be authorized unless the lien waivers are received. ' 13.0 STATE OF MINNESOTA WITHHOLDING REQUIREMENTS (GC-14.12) The Contractor and all subcontractors shall submit State form ' IC-134, "Withholding Affidavit for Contractors" along with the final payment request. No payment will be authorized unless the IC-134 forms are received. ' The Contractor shall also be aware of Minnesota Statute 290.9705 regarding out-of-state contractors. ' Forms may be obtained from the Minnesota Department of Revenue, Busines Trust Tax Division. ' 14.0 ARBITRATION (GC-16) Add the following paragraph: ' 16.6 "The Contractor will carry on the work and maintain the progress schedule during any arbitration proceedings, unless otherwise mutually agreed in writing." 15.0 FAILURE TO COMPLETE WORK ON TIME ' Should the Contractor fail to complete the work on or before the original date(s) set forth for completion in paragraph 1 of the Special Provisions or on or before the corrected date as granted by extension of time for completion, the Owner may permit the ' Contractor to proceed, and in such case, there .shall be deducted Supp 9 L from any monies due or that may become due the Contractor, the sum ' of $250.00 per day for each and every calendar day, exclusive of Sundays and holidays, that the work shall remain uncompleted. This sum shall be considered and treated, not as a penalty, but as the cost of field and office .Engineering and Inspections and , Liquidated Damages. ' Permitting the Contractor to continue and finish the work or any , part of it after the time fixed for its completion, or after date to which the time of completion may have been extended, shall in no way .operate as a waiver on the part of the Owner, or as a waiver of any of his rights under the contract. , Neither by the taking over of the work by the Owner nor by the ' termination of the contract shall the Ovmer forfeit the right to recover liquidated damages from the Contractor or his surety for failure to complete the contract. Supp 10 ' u ii i~ j J i~ Form IC-134 Minnesota Department of Revenue Rev. 11/90 WEthholding Affidavit for Contraetor~ This affidavit must be approved by the Minnesota Department of Revenue before the State of Minnesota or any of its subdivisions can make final payment to contractors. Company name Minnesota ID number Address tdonth!year work began City State Zip Code Month/year work ended Please type or print clearly above. This will be your mailing label for returning the completed form. Total contract amount: Telephone number Amount still due: Did you have employees work on this project? Project number: If none, explain who did the work: Project location: Project owner: Address F -~- .r1s~ nzQ+e Check the box that describes your Involvement in the project and fill !n all information requested !n that category: ^ Sole contractor ^ Subcontractor If you are a subcontractor, fill in the name and address of the contractor that hired you: ^ Prime Contractor If you subcontracted out any work on this project, all of your subcontractors must file their own IC-134 affidavits and have them certified by the Department of Revenue before you can file your affidavit. For each subcontractor you had, fill in the business information below, and attach a copy of each subcontractor's certified IC-134. (If you need more space, attach a separate sheet.) Business name Address OwnerlOfficer 1 declare that all information I have filled in on this corm is true and complete to the best of my knowledge and belief. I authorize the Department of Revenue to disclose pertinent information relating to this project, including sending copies of this form, to the prime contractor ii I am a subcontractor, and to any subcontractors if I am a prime contractor and to the contracting a ency Contractor's signature Title Date For certification, mail original and one copy to: ' Minnesota Department of Revenue, Business Trust Tax Section Mail Station 6610, St. Paul, MN 55146-6610 Certificate of Compliance with Minnesota Income Tax Withholding Law ' Based on records of the Minnesota Department of Revenue, I certify that the contractor who has signed this certificate has fulfilled all the requirements of Minnesota Statutes 290.92 and 290.97 concerning the withholding of Minnesota income tax from wages paid to employees relating to contract services with the state of Minnesota and/or its subdivisions. ' Signature o1 authorized Depanment of Revenue official Date Stock No. SOD0134 Instructions for Form iC-134 Who should file? If you are a prime contractor, a contrac- tor, or a subcontractor who did work on a project for the state of Minnesota or any of its local government subdivisions -such as a county, city, or school district -you must file Form IC-134 with the Minnesota Department of Revenue. This affidavit must be certified and returned before the state or any of its subdivisions can make final payment for your work. When to file The IC-134 cannot be processed until you are finished with the work. Do not send the affidavit in for certification before the project is completed since it will only be returned to you unproc- essed. If you are a subcontractor or sole contractor, file Form IC-134. when you have completed your part of the project. If you are a prime contractor, file Form IC-134 when the entire project is completed and you have received certified affidavits from all of your subcontractors. Where fo file Fill out Form IC-134 and mail the original and one copy to: Minnesota Department of Revenue Business Trust Tax Section Mail Station 6610 St. Paul, MN 55146-6610 How to file If you have fulfilled the requirements of the withholding tax laws of Minnesota, the Department of Revenue will sign your affidavit, keep the copy, and return the original to you. If you want it returned to a different mailing address, please enclose a mailing label or preaddressed envelope. If any withholding payments are due to the state, Minnesota law (M.S. 290.97) requires that payment must be made by only money order, cashiers check, certified check, or cash. Take the certified affidavit to your prime contractor or to the governmental unit for which the work was done in order to receive your final payment. Minnesota tax identification number You must fill in your Minnesota tax identification number on the form. You must have a Minnesota tax ID number if you have employees who work in Minnesota. If you need a number, get Form MBA, Application for Tax Identification Number, and file it with the Minnesota Department of Revenue. To get Form MBA, call 296-3781 from the Twin Cities area or 1-800-652-9094 from elsewhere in Minnesota, or write to Minnesota Tax Forms, Mail Station 7131, St. Paul, MN 55146-7131. . If you have no employees and did all the work yourself, you do not need a Minnesota identification number. If this is the case, fill in your Social Security number in the space for Minnesota ID number and explain who did the work. Are you a prime contractor and a subconfractor on the same project? If you are a subcontractor who was hired to do work on a project and you subcontract all or a part of your portion of the project to another contractor, you become a prime contractor as well. If this is the case, fill out both the subcon- tractor and prime contractor areas on a single form. Use of information The Department of Revenue needs all the information, except your phone number, to determine whether you have met all state income tax withholding requirements. If all required information is not provided, the IC-134 will be returned to you for completion. All information on this affidavit is guaranteed private by state law. It cannot be given to others without your permission, except to the Internal Revenue Service, other states that guarantee that it will be kept private, and certain state or county agencies. If you need help or additional informa- tion to fill out this form, call 296-6181 in the Twin Cities area. From elsewhere in Minnesota and from outside the state, call (toll-free) 1-800-657-3777. To qet more 1C-134 forms If you need more IC-134 forms, call 296-3781 from the Twin Cities area or 1-800-652-9094 from elsewhere in Minnesota, or write to Minnesota Tax Forms, Mail Station 7131, St. Paul, MN 55146-7131. u ii 0 L f' ~l i L SPECIAL PROVISIONS TABLE OF CONTENTS 94120 Page 1 1. Project 2. Foreman ~ Preconstruction Meeting 3. Construction Staking 4. Utilities 5. Contractor-Engineer-Inspector Relationship Page 2 6. Subcontractors 7. Incidental Items 8. Responsibility 9. Connections 10. Trench Compaction Page 3 11. Testing 12. Water Service Page 4 ' 13. Materials 14. Blocking 15. Polyethylene Encasement 16. Method of Measurement - Watermain Page 5 17. Basis of Payment - Watermain Page 6 18. Manhole Castings 19. Sewer Service Connections 20. Sanitary Sewer Testing 21. Manhole Adjusting Ring 22. Services 23. Compaction Under Services Page 7 24. Bedding 25. Grading 26. Crushed Rock 27. Subsurface Exploration 28. Test Rolling Page 8 29. Water 30. Protection of Existing Utilities 1. PROJECT The project watermain and ~, SPECIAL PROVISIONS 94120 consists of the installation of sanitary sewer, streets in Albertville, Minnesota. The Contractor shall complete the streets, utilities, and all restoration, excluding the bituminous wear_ course by July 29, 1994. The bituminous wear course shall be paved in the spring of 1995 and shall be completed by_June 1, 1995. The Contractor shall be subject to the provisions of Article 15 of the Supplemental Conditions for failure to meet these completion dates, as a whole or in part. 2. FOREMAN AND PRECONSTRUCTION MEETING Before work is initiated, a preconstruction meeting shall be held between the Engineer, Contractor, Utility Companies and other involved parties, if any. The Contractor will present to the Engineer an estimated schedule for completion of various portions of the project. The Contractor shall inform the Engineer who the foreman on the project will be. The foreman shall be on the job at all times. The foreman shall be responsible for all phases of the project, including work done by the General Contractor and the subcon- tractor. Engineering decisions with regard to the work done by subcontractors shall go through the General Contractor and specifically the foreman for the job. 3. CONSTRUCTION STAKING The Contractor shall give the Engineer at least two (2) working days notice for any grade and line stakes or inspection that he requires for proper execution of any phase of the project. The Contractor shall preserve these stakes until the work is completed. Replacement will be at the Contractor's expense. 4. UTILITIES The Contractor shall be in communication with the respective utility companies to coordinate their schedule with any location work that is required. ' 5. CONTRACTOR-ENGINEER-INSPECTOR RELATIONSHIP The Engineer will not be responsible for the construction means, controls, techniques, sequences, procedures, or construction ' safety. All phases of the project shall proceed in accordance with OSHA safety requirements. The presence of the Engineer or his agents or employees on the job-site shall not relinquish the Contractor of this responsibility or hold the Contractor harmless for the quality of workmanship or defects in materials. ~I S.P. 1 6. SUBCONTRACTORS A_11 subcontractors that the General will use shall be shown on the proposal form. Any other subcontractor will not be allowed without explicit written permission by the Engineer. The General Contractor shall coordinate all work between his subs and the Engineer. The Engineer will not correspond directly with any subcontractor. Any on-site meetings that are held will be conducted only if the General Contractor's foreman is present. 7. INCIDENTAL ITEMS Any and all additional items of work or other items that must be done to fully complete this project shall be incidental to the bid items as bid. 8. RESPONSIBILITY The General Contractor shall be fully responsible for all work that is performed on this project. It is the General Contractor's responsibility to see that all specifications and testing requirements are followed and scheduled. 9. CONNECTIONS All connections made based upon to existing lines are incidental. Payment will be the fittings and pipe length used. 10. TRENCH COMPACTION The backfill around and to 12" above the pipe (sanitary sewer and watermain) shall be compacted by hand tampers. The required compaction shall be 98% of the standard proctor density. The trench from a point 12" above the pipe to finished grade shall be compacted to a minimum of 98% of standard proctor density. All trenches within roadways and driveways shall be compacted to 100% of standard proctor density in the upper three (3) feet of the trench. All trench areas not conforming with these requirements shall be excavated and recompacted. The__Contractor__shall supply the En_ ig Weer at the_ time_ of the preconstruction meeting. a list_ of equipment that will be used _for backfilling _and compaction operation. The Engineer reserves the right to shut down work on the project if this equipment is not utilized during such backfilling and compaction operations. A maximum 12" lift shall be used. Smaller lifts may be required to obtain the specified density. If 12" lifts are not utilized, the trench will be completely re-excavated and recompacted in order to achieve maximum compaction lifts of 12". The bedding material around the sanitary sewer and watermain shall be compacted in maximum_ 6" lifts. S.P. 2 1 n n LJ 11. TESTING ' The Contractor shall supply the Engineer with documented test results by an independent testing laboratory approved by the Engineer on tests required for the sanitary sewer, watermain and ' streets. Density tests shall be paid for on a per test basis. The anticipated number of density tests are shown on the proposal form. The following procedure shall be followed. No exceptions shall be made. An independent testing lab shall test the backfill for the required density as the backfilling compaction progresses. No digging down to test densities will be allowed after the backfilling is completed. Therefore,_ the_ lab must be present during backfilling to test_ the .soil while the backfillina is ' proceeding. Backfilling, compaction, and density testing on these trenches is extremely important. For this reason, the trench testing is shown as a bid item so all contractors are fully aware of this requirement. Retesting shall n_ot be paid for. All initial ' tests on the trenches shall be paid for at the unit bid price. If the tests fail, it shall be the Contractor's responsibility to pay for retesting those areas following compaction. All trenches for ' the sanitary sewer, watermain and services shall be tested for the required compaction density in conformance with the compaction requirements previously stated. The trench shall be tested at approximately 100-foot intervals at two to three depth locations. One test shall be taken next to the pipe, the second shall be taken at the midpoint of the trench, and the third shall be taken two feet below subgrade. Compaction around every manhole, hydrant ' and gate valve shall be the same as for the trenches. Tests shall be taken at the manhole, hydrant and gate valve at the depth locations stated above. ,' It should be noted that the Engineer may change test locations and depths at his discretion. It should also be noted that the Engineer may add or delete tests at his discretion with no change in the unit price. ' The Contractor shall be responsible for coordinating his schedule with the testing firm and all test results shall be documented with respect to plan stationing, depth and location. Copies of all ' tests shall be iven to the Engineer at_a_minimum of once every week. 12. WATER SERVICE Prior to the shutoff of any water, the Contractor shall notify the Joint Powers Water Utility and the affected property owners of his working schedule. The Contractor shall notify these people 48 hours in advance of the start of work. The work done during this time shall be done in an efficient manner so that as little ' inconvenience as possible is caused. S.P. 3 13. MATERIALS ' A. All DIP watermain shall be Class 52. All fittings shall be DIP. ' All water services shall be type K, copper. All watermain fittings used with the PVC watermain shall be DIP and encased in polyethylene. Polyethylene encasement of the fittings shall be incidental to the C-900 PVC installation. All PVC watermain shall have a #8 wire, suitable for underground use, installed for tracing- purposes. The tracer ' system shall be tested by the Contractor in the presence of the Project Engineer and the Joint Powers' representative prior to initiating street construction. , B. All sewer mains and service wyes shall be constructed utilizing PVC, SDR 35 sewer pipe with gasketed joints. All sewer services ' and fittings shall be constructed utilizing PVC, SDR 35 sewer pipe with gasketed joints. 14. BLOCKING The following shall be added to Section 3H.6.C of the Watermain Construction Requirements. ' If blocking is to be done against soil, the soil must be virgin or thoroughly compacted soil and the area of soil used to withstand the. above forces must be based upon an allowable soil bearing , pressure of 3000 pounds per square foot. If concrete blocking is utilized, all fittings to be blocked shall have a piece of plastic placed over it prior to placing the concrete. 15. POLYETHYLENE ENCASEMENT The following shall be added to Section 3.I of the Watermain Construction Requirements. All DIP watermain, valves, hydrants, DIP fittings, etc. shall be polyethylene encased. Except for hydrants with plugged weep holes as required by the Engineer, the , polyethylene tubing shall have an open drain outlet. If C-900 PVC watermain is used, then the watermain shall not be polyethylene encased. However, all valves, hydrants, DIP fittings, etc. shall be polyethylene encased as described above. Polyethy- lene encasement of these items shall be incidental to the installation of the C-900 PVC. 16. METHOD OF MEASUREMENT The following revisions - WATERMAIN are to be made to the . Watermain ' Construction Requirements. S.P. 4 I~ L~ ~' i ~_ A. Delete the fourth sentence of Section SA and insert the following in its place: "In the case of hydrant leads, the compensation length shall be from the center of the connecting main to the center of the hydrant." B. Delete Section 5C in its entirety and insert the following in its place: "C. Hydrants ' Hydrants shall be measured on a per unit basis. The unit includes the hydrant, concrete base, crushed rock, tar paper or plastic cover, and blocking or restraining devices." ' C. Delete Section 5D in its entirety and insert the following in its place: ' "D. Fittings Fittings of each type shall be measured on a per unit basis." D. Delete Section 5E in its entirety and insert the following in ' its place: "E. Granular Materials Granular materials used for bedding, encasement, etc. for the watermain shall not be measured for separate payment." ' 17. BASIS OF PAYMENT - WATERMAIN The following revisions are to be made to the Watermain Construction Requirements. A. Delete Section 6C in its entirety and insert the following in its place: ' "C. Hydrant Hydrants shall be paid for at the unit contract price per each, including installing the hydrant, concrete base, crushed rock, ' tar paper or plastic cover, and blocking or restraining devices." B. Delete Section 5D in its entirety and insert the following in its place: "D. Fittings Fittings shall be paid for at the contract unit price per each type and size, including installation and blocking." C. Delete Section 5E in its entirety and insert the following in ' its place: "E. Granular Material Granular materials used for bedding, encasement, etc. for the ' watermain, shall be incidental to the watermain installation." J S.P. 5 i 18. MANHOLE CASTINGS All sanitary sewer manhole castings shall be Neenah R-1642, or approved equal, with the type B, self-sealing lid with concealed pickholes and the appropriate name stamped on it. 19. SEWER SERVICE CONNECTION A sewer service connection shall include the wye, plug and bends as required to serve each connection, regardless of service type. Payment shall be by the individual service connection made and shall include all materials, labor and equipment necessary for its installation. The sewer service connection does not include the service pipe, which shall be paid under a separate bid item. 20. SANITARY SEWER TESTING The Contractor shall utilize PVC for construction of the sanitary sewer lines. The Contractor shall pay particular attention to the bedding requirements for PVC pipe. The PVC pipe shall be tested for a maximum pipe vaall deflection of 5% of the normal pipe size. This testing shall be done in the presence of the Engineer and at the completion of all backfilling operations. If any portion of the line is not within the maximum pipe wall deflection of 5%, this portion shall be re-excavated, properly bedded and tamped, and the trench recompacted and tested for density at no additional expense to the Owner. The line shall then be tested again for pipe wall deflection. Deflection testing shall not be done prior to the pipe being in place for 30 days. 21. MANHOLE ADJUSTING RINGS Mortar for the adjusting rings shall be placed between the rings and on the outside only. No mortar shall be placed on the inside of the adjusting rings. Mortar protruding into the interior of the manhole shall be removed. Rings for both the manholes and catch basins shall have at least 2" of mortar between them and sufficient mortar on the outside to fill in the voids. 22. SERVICES Services shall extend ten feet into each lot to be served with an accuracy of + one .foot. 23. COMPACTION UNDER SERVICES Any soil that is subcut from below a service must be compacted back in place at 100% standard proctor density prior to laying the service. Density tests must be taken to confirm the density. If the soil is not compacted to 100% standard proctor density, then crushed rock must be compacted and placed below the service in order to ensure no movement. Use of crushed rock shall be at the Contractor's expense. S.P. 6 ~! i n ' 24. BEDDING A. All sanitary sewer mains and services shall be bedded according to detail 2.006B. The bedding material shall conform to the ' requirements of Section 2621-2F1 of the Standard Utilities Specification. B. The water pipe and services shall be bedded according to detail ' 1.008B. The bedding material shall conform to the requirements of Section 2H.1 of the Standard Requirements for Construction of Watermain. C. Storm sewer pipe bedding shall be ordinary bedding consisting of natural, on-site soils, except in cases where the .Engineer ' directs otherwise. The fill detail 3.006 of the detail material around the pipe (as shown on sheet) shall be less than 1 i h i diameter and also be free nc n of any organic material or foreign objects. A h i l h mec an ca and tamping machine must be used around all water, sanitary sewer and storm sewer pipe to compact .the bedding and initial fill. 25. GRADING The Developer shall grade the streets to the subgrade elevation and the boulevards to approximately finished grade. Only minor site grading will be required of the Contractor after construction ' to restore the site to its initial condition. All grading work by the Contractor for restoration purposes shall be incidental to the unit prices bid. 26. CRUSHED ROCK A bid item for crushed rock has been included for this project. ' This bid item shall only be used if the Engineer determines that the soil conditions warrant its use. No payment for crushed rock will be made in lieu of dewatering. 27. SUBSURFACE EXPLORATION ' No soil borings have been taken on this project. The Contractor shall therefore conduct a thorough subsurface exploration to determine the site's condition. 28. TEST ROLLING The Contractor shall be required to test roll the subgrade and the ' aggregate base in accordance to Article 2.04 of the Street Construction Specifications. The subgrade shall pass the test rolling prior to placement of the aggregate base and the aggregate base shall pass the test rolling prior to placement of the ' curbing. ' S.P. 7 0 29. WATER Water for construction purposes may not be taken from any hydrant within the city of Albertville. Water may be purchased and obtained from the Joint Water Board at the hydrant in front of the Board's pumphouse and office, located at 11100 50th Street NE in the city of Albertville. The fee for use of this hydrant is $50.00 per day, plus $2.00 for each thousand gallons used. A permit per day must be obtained from the clerk of the Joint Powers Water Board after paying the required fee. Water may be obtained from this hydrant only after prior arrangements have been made with the clerk of the Joint Powers Water Board for each day it is to be used. 30. PROTECTION OF EXISTING UTILITIES The Contractor shall use utmost care .during his operations and particularly during manhole adjustments to keep gravel and debris from entering sanitary sewer manholes. In the event of debris or gravel entering the sanitary sewer lines, these lines shall be jetted by Roto-Rooter or other approved company at the expense of the Contractor. Flushing of debris or gravel down the sanitary sewer line will not be allowed. 31. ALTERNATE BID The Developer is requesting an alternate bid be provided for C-900 PVC watermain pipe to be installed in lieu of the DIP with polyethylene encasement. If the bids indicate that a significant cost savings will be achieved by using the C-900 PVC, the Developer may elect to substitute it for the DIP watermain specified as the base bid. 32. SPECIFICATIONS WHICH APPLY The Minnesota Department of Transportation "Standard Specifica- tions for Construction", 1988 Edition, together with all supple- ments thereto, and the Joint Powers Water Board's "Watermain Construction Requirements" dated April, 1993, shall govern except as superceded by the attached General Conditions as modified herein by the Special Provisions and attached specifications. 33. STANDARD PLATES All references to standard plates MHD shall mean the "Standard Plates" of the Minnesota Department of Transportation. All other reference to standard plates shall mean those details attached to the Plans. 34. CONSTRUCTION LIMITS The Contractor shall confine his activities to the right-of-way, easements, or designated construction area. Equipment and material storage or deposition of excavated materials on private property S.P. 8 1 ij 1 ~~ 1 II~ J I'~ u LJ ul~ L' must be approved in writing by the property owners, a copy of which shall be presented to the Engineer prior to such storage or deposition. Failure to do so will result in immediate suspension of work until such approval has been obtained or materials removed, and area restored to its previous condition or better. 35. SHOP DRAWINGS The Contractor shall submit shop drawings for approval by the Engineer for all materials to be used on the project. These shall include culverts, watermain pipe and fittings, silt fence, etc. A minimum of five copies of each shall be supplied to the Engineer. 36. PERMIT REQUIREMENTS Permit applications have been submitted to the Minnesota Pollution Control Agency, Minnesota Department of Health, and the Joint Powers Water Board, in order to minimize any potential delays in the project. The contractor should therefore contact these agencies to determine if there are any special conditions they may have which should be included in the bid. The Contractor will be required to comply with all the requirements that these agencies may have. No change orders will be considered for complying with these requirements. 37. EXISTING MANHOLE ADJUSTMENT A bid item has been included for the adjustment of the existing manhole structures to 3/4" below the top of the finished base course. Payment shall include the adjusting rings, labor and other materials necessary to complete the adjustment. Payment shall be per structure raised. See Article 21, Manhole Adjusting Rings for installation requirements. 38. MANHOLE AND VALVE ADJUSTMENT Bid items have been provided for adjustment of the manholes and gate valves prior to paving the wear course. These bid items shall include all labor, equipment and materials necessary for removing the bituminous base course from around the structures, raising the manhole or gate valve, re-compacting the disturbed gravel and soil, patching the bituminous base course, and disposal of all excess debris. S.P. 9 0 STREET CONSTRUCTION SPECIFICATIONS 1.0 SCOPE 1.1 LOCATION OF WORK The location of this work is as shown on the plans. 1.02 WORK INCLUDED The Contractor shall, unless specified otherwise, furnish all materials, equipment, tools and labor to do the work required under this contract in strict conformance with the plans and specifica- tions prepared for the purpose by Meye r-Rohl in, Inc., Engineers and Land Surveyors, 1111 Highway 25 North, Buffalo, Minnesota. The work shall include, but not be limited to, the excavation of the entire roadway between right-of-way lines to the prescribed sub-grade and cross-section; supplying, spreading and compacting the sub-base; supplying, spreading and compacting the base; bituminous surfacing of the streets with the specified tack coat, bituminous bases and bituminous wear of specified thickness and all necessary backfil- ling, surface restoration and cleanup, as specified. 1.03 SPECIFICATIONS WHICH APPLY The Minnesota Department of Transportation Specifications for Highvaay Construction, 1988 Edition, together with all supplements thereto, shall govern except as superseded by the attached General Conditions or modified herein by the Special Provisions and attached specifications. 2.00 GRADING 2.01 GENERAL The work covered in this specification shall consist of the cutting and/or filling of the full street width to provide the required cross-section shown on the drawings. The work covered by this section will be done in accordance with Section 2105 and 2112 of Minnesota Department of Transportation Specifications for Highway Construction, 1988 Edition, except as modified hereafter. 2.02 SUBGRADE The subgrade shall be brought to the prescribed cross-section and grade by the necessary excavation and fill by using acceptable existing materials and thoroughly compacting all necessary fill material. The subgrade shall then be prepared in accordance with Section 2.05. 1 L In the event of poor sub-grade material, the Engineer shall be notified immediately so a determination can be .made as to the correct procedure to follow. Proper drainage shall be provided at all times so that the sub-grade will be kept free of standing water. Any soft spots developing from poor drainage and standing water shall be completely excavated, b ackfilled, and compacted with an acceptable dry material at no additional cost to the City. 2.03 EXCAVATION AND .EMBANKMENT (2105) All operations shall be done in accordance with MnDOT Specification No. .2105. All compaction will be done by the "Specified Density Method" . Density tests shall be taken to evaluate the compaction achieved. ' The quantity of tests shall be determined by the Engineer in the field. Where density tests are taken to evaluate the compaction, the fill shall meet the requirements of a minimum of 100% of Standard Proctor Density (AASHTO T-99 ) in the upper three feet of the ' embankment and a minimum of 95% of Standard Proctor Density below the upper three feet, except when the existing soil moisture content is over the "optimum" moisture content determined by the Standard Proctor Density. When the existing soil moisture content is over the "optimum" moisture content, the soil shall be compacted to a density within five pounds per cubic foot (pcf) of the theoretical density identified by the Proctor curve at that moisture content. The Engineer reserves the right to reject materials which are over "optimum" moisture content. subgrade excavation is further defined under Paragraph 2.06 of ' these specifications. Granular borrow and select granular borrow shall meet the ' requirements of MnDOT Specification No. 3149; maximum particle size to be six inches in diameter. ' 2.04 TEST ROLLING (2111 MODIFIED) After the above work relative to compaction is completed, the subgrade shall be test rolled in accordance with MnDOT Specifica- ' tion No. 2111, except as follows: Test rolling shall be performed prior to, intermittently during, ' and after completion of subgrade preparation work (2112) or subgrade excavation work (2105) when ordered by the Engineer. The yielding or rutting portion of this specification 2111.3 ' shall apply only to the test roll for final acceptance of the subgrade preparation; earlier test rolling shall be for the STREET CONSTRUCTION page 2 0 purpose of identifying those areas needing subgrade excavation, ' etc. Later test rolling on the base course shall be to determine if required stability exists. In embankment/fill areas, the subgrade may be test rolled at an elevation lower than finished subgrade elevation if the condition of the soils being placed ' indicate that normal subgrade preparation (2112) cannot be performed and that subgrade excavation (2105) may be necessary; this procedure is to eliminate having to remove materials just previously placed. Test rolling shall also be used in conjunction with the placing of aggregate or bituminous base courses when ordered by the Engineer. ' The Contractor will furnish a wheel loader (with operator) for test rolling. The wheel loader shall have an approximate bucket size of three cubic yards and shall be fully loaded. Test rolling , will be required. over the entire length and width of the proposed roadway and one foot outside the back of curb. Test rolling shall be performed as many times as deemed necessary by the Engineer. ' The costs of the wheel loader and operator and any other costs incurred during test rolling shall be incidental to construction of the subgrade or base and no direct compensation will be made therefore. Test rolling, including retesting of repaired, failed ' sections, shall also be considered as incidental. 2.05 SUBGRADE PREPARATION (2112) ' After the test rolling is completed to the satisfaction of the Engineer, the subgrade shall be prepared in accordance with MnDOT Specification 2112,. except as follows: The Contractor shall prepare the top 12 inches of subgrade by means of scarifying, aerating or vaatering for at least a period of 24 hours or as long as specified by the Engineer, in order to obtain the required stability and density. If wet or poor soil is encountered, the Contractor shall dry it out for a minimum period , of 24 hours in optimum drying weather or longer in other conditions by aerating the soil by the use of blades, sheepsfoot, or other mechanical means. Under normal circumstances no determination as to the acceptability of a questionable subgrade ' material will be made prior to the Contractor's drying out the soil for the minimum time period. Areas which remain unstable after normal subgrade preparation will be rep aired at the ' direction of the Engineer as to MnDOT Specification No. 2105 (subgrade Excavation). ' Unstable areas of subgrade due to inclement weather shall be prepared by the Contractor at no compensation; subgrade deter- mined satisfactory and the failing due to inclement weather also shall be rep aired at no additional compensation. ' The top 12 inches of subgrade shall be compacted to 100% Standard Proctor Density. The "required stability" shall be such that, ' STREET CONSTRUCTION page 3 ii 7 i u LI iL 7 J when test rolled, the roadbed surface shows yielding or rutting of no more than 12" measured from the top of the constructed grade to the bottom of the rut. Tests shall be taken to evaluate the compaction achieved. Tests shall be taken at the rate of one test for every 100 feet of subgrade prepared. Testing shall be by an independent test lab at the Contractor's expense. Under no circumstances shall gravel be hauled until the subgrade has been approved by the Engineer with respect to grade and density. Subgrade preparation will be required over the entire length and width of the proposed roadways and one foot outside the back of curb. Payment shall be by the square yard (sy) prepared. 2.06 SUBGRADE EXCAVATION (2105) Subgrade excavation shall consist of all excavations made below the top of the subgrade surface of the road and between the shoulder slopes, which are not made for the purpose of obtaining topsoil, and the materials of which are not classified for payment such as rock excavation. This work shall include the removal and disposal of unsuitable materials in the roadbed and replacing such materials with common excavation, common borrow, granular borrow, or base materials, together with any other work necessary to provide drainage for the excavations. All excavation shall be by the load and haul method, with no scraper operation being acceptable. Common excavation, common borrow, granular borrow, or base materials, when used in replacing materials removed through subgrade excavation, shall be as follows: a. Common Excavation Material (2105.2A) Common excavation material to be used in subgrade excavation must be approved by the Engineer prior to placing. When this material is used, the Contractor shall be paid for excavation of the un suitable materials and replacement of the unsuitable materials with common excavation, at the common excavation unit price, provided the common excavation material is furnished from an initial excavation area. If the common excavation material has been moved once initially and stockpiled, then the material will be paid as common borrow material, as described below. b. Common Borrow Material (2105B) When suitable or ample common excavation material can not be .found within the excavation limits, the common borrow material approved by the Engineer will be used in subgrade excavation. Borrow material will be obtained within the right-of-way if available; if not, it may be obtained off the right-of-way at a location located and negotiated by the Contractor. Regardless of the location of the borrow source, only one bid item will apply fo r furnishing of the borrow. When common borrow is used, the Contractor shall be paid for excavation of the .unsuitable materials and replacement of the unsuitable materials with common borrow . STREET CONSTRUCTION page 4 C. Granular Borrow Material (3149) When common excavation or common borrow material cannot be obtained by the Contractor on or off the right-of-way, the Engineer may direct the Contractor to use granular borrow material for subgrade excavation. When granular borrow is used, the Contractor shall be paid for , excavation of the unsuitable materials and replacement of the unsuitable materials with granular borrow. All materials used for replacement in areas of subgrade excavation shall be compacted in accordance with 2105 as previously mentioned in paragraph 2.03. All replacement materials in the top 12 inches of the subgrade shall then be compacted in accordance with the provisions of subgrade preparation (2112), as previously described in paragraph 2.05. subgrade excavation shall be made to the depths and location indicated by the Engineer. Areas of subgrade excavation may be required at random locations throughout the roadbed or may be required as a "core -type excavation", wherein the roadbed is excavated for its entire length and width. No subgrade excavation shall be done prior to subgrade preparation and test rolling. Payment for subgrade excavation shall be by the cubic yard (e.v.) and shall. be compensation for excavation and disposal of the material. Generally, no subgrade excavation shall be used to correct conditions caused by inclement weather. In cases where inclement weather is continuous and for long periods of time, and does not allow for expeditious completion of subgrade preparation by use of 2112 and/or 2105, the Engineer may require the Contractor to prepare the roadways as follows: (1) Make a core excavation of the subgrade to a depth as directed by the Engineer. (2) Replace the excavated material below subgrade vaith the same materials to be used for base material (Class 5, etc. ) and then immediately continue to place the loose material in the area above the subgrade elevation. The subgrade excavation and the base. course both shall be constructed with base material in a fashion which will contribute to "bridging". In this case, after the subgrade excavation has been made and the conditions do not allow for compaction, then the bottom of the subgrade excavation shall be subcut to a uniform bottom and the base material shall be placed in a fashion to prevent pumping or intrusion of the subgrade into the base material. Generally, the first 12 inches of the material shall be deposited on the subgrade before any rolling or compaction begins. All compaction done in this situation shall be by use of static equipment. CIII 0 ii n 7 J STREET CONSTRUCTION page 5 r 1 ' (3) When this procedure for subgrade excavation is used, the Contractor shall be paid for excavating the unsuitable materials below subgrade elevation and shall be paid for all ' base materials used above and below subgrade elevation, all at contract unit price; the compaction of this base material shall be considered incidental. Also, when this method is used, the Contractor shall not be paid for subgrade prepara- ' ti on (2112). Base material used for backfill, as described above for "bridging", ' will be paid for at the same unit price paid under the applicable base price and unit. ' In areas of embankment/fill, the Contractor and the Engineer shall both observe the placement of materials and if it appears that the soils being placed will not be able to be prepared under normal subgrade preparation and that subgrade excavation will be neces- ' sary, then the subgrade shall be left lower than final elevation so as to eliminate having to pay for excavation of materials that were just previously placed. Particular attention shall be paid that capping of granular materials with non-granular materials is not permitted at or within 12 inches of the subgrade surface. Any over-excavated areas shall be returned to the proper grade and ' cross-section by the Contractor at no additional cost to the owner. 0 J i J 2.07 EXCESS MATERIAL Excess material not used on the project is the property of the Owner and shall be disposed of as directed by the Engineer within a distance of one mile from the site of the work. Disposal of the excess material shall be incidental to the excavation unit price. 3.00 CLEARING OF STREET RIGHT-OF-WAY 3.01 GENERAL This work shall consist of removing and disposing of trees, shrubs, roots, wind falls, stumps and abandoned structures such as sidewalk, curb and gutter, culverts, manholes, and catch basins. The work shall include the salvaging of designated materials and the backfilling of the resulting trenches, holes and depressions. 3.02 REMOVING MISCELLANEOUS STRUCTURES The Contractor shall remove and dispose of all abandoned structures and obstructions designated by the Engineer. Culverts, manholes and catch basins shall be salvaged and the Contractor shall deliver all salvaged structures to the Owner. Sidewalks, curb and gutter and driveway pavement shall be removed at a joint or shall be sawed to one-third the thickness of the concrete. The exposed edge of removal shall be straight with no chips or cracks. STREET CONSTRUCTION page 6 0 4.00 AGGREGATE BASE , 4.01 GENERAL The Contractor shall notify the Engineer when the subgrade is to proper grade and cross-section -for acceptance before proceeding with the base. This work shall consist of construction of one or more courses of ' aggregate base on a prepared sub-base. Work shall be done in accordance with Section 2211 of Minnesota Department of Transporta- ' tion Specifications for Highway Construction, 1988 Edition, except as modified hereafter. 4.02 MATERIALS ' Gravel material shall be of the class designated on the typical section of the plans. Gravel material shall meet the requirements ' of Section 3138 of Minnesota Department of Transportation Specifi- cations for Highway Construction, 1988 Edition, except as modified hereafter. ' 4.03 TESTING Samples of the aggregate base material shall be taken at the project site at the rate of one test for every 1000 feet of base (minimum). A minimum of two tests shall be required on the project. An independent lab shall perform the tests and confirm the , gradation. All test reports shall indicate the location where the samples were taken. The gravel shall meet Class 5 gradation requirements prior to the placement of curbing or bituminous application. ' 4.04 COMPACTION ' Compaction shall be by the "ordinary compaction" method. Each layer shall be compacted until there is no further evidence of consolidation, using a tamping, steel-wheeled or pneumatic-tired , rolle r, meeting the requirements of the Minnesota Department of Transportation Specfication 2123. The Engineer may elect to test the compaction with field density tests. The base material shall be , compacted to 100% of standard proctor density. 4.05 QUALITY CONTROL ' The gravel base shall be approved 24 hours before the bituminous base application. The base shall be within 2" + at the crown and quarter crown. - ' 4.06 PAYMENT Payment for the aggregate base shall be on the basis of cubic yards ' of material furnished and compacted in place and shall be compensation in full for all costs incidental to its construction. STREET CONSTRUCTION page 7 1 1 1 1 i ~~ 5.00 BITUMINOUS BASE COURSE 5.01 WORK INCLUDED The Contractor shall, unless specified otherwise, furnish .all material, equipment, tools and labor for the construction of a paver-laid bituminous base as noted. on the plans, and shall be done in accordance with Section 2331 of Minnesota Department of Transportation Specifications for Highway Construction, 1988 Edition, except as modified below. 5.02 AGGREGATE The aggregate material shall meet the requirement of aggregate size B, Table 3139-1, Section 3139, for both type 31 and type 32, Base Course Mixtures, Section 2331. 5.03 BITUMINOUS MATERIAL For the mixture, the bituminous material shall be asphalt cement, 120-150 penetration. The oil content shall be within plus or minus 0.3% of the amount determined by the design mix. The oil content called for in the design mix shall meet or exceed the minimum percentages by weight identified in Table 2331-1, Section 2331, for the appropriate mixture type. Cost of the design mix shall be incidental to the payment for bituminous base. 5.04 CONSTRUCTION All curb and gutter must be backfilled before any blacktop is applied to the street. Prior to placement of the base course, any existing bituminous surface abutting it shall have a straight cut joint made, it shall be cleaned, and it shall be liberally tacked with a bituminous material. After paving the base, all gate valves and manholes on this project shall be adjusted to 3/4" below finished grade for the winter. All disturbed aggregate base shall be recompacted and the blacktop patched. A 3-foot diamond of bituminous shall be placed around the manholes to protect them from the snowplows. A 1-foot diamond of bituminous shall be placed around the gate valves to protect them from the snowplows. 5.05 PAYMENT The bituminous base shall be paid for on the basis of square yard-inch at plan thickness. Unless otherwise directed by the Engineer, all streets shall be constructed with a bituminous thickness as shown on the plans. Payment shall be compensation for preparation of all existing surfaces, furnishing materials, laying and rolling. STREET CONSTRUCTION page 8 6.00 BITUMINOUS WEARING COURSE 6.01 WORK INCLUDED The Contractor shall, unless otherwise specified, furnish all materials, equipment, tools and labor for the construction of a plant mixed, paver laid, bituminous surface as noted on the plans, and shall be done in accordance with Section 2331 of Minnesota Department of Transportation Standard Specifications for Highway Construction, 1988 Edition, except as modified below. 6.02 AGGREGATE The aggregate material shall meet the requirements of aggregate size A, table 3139-1, Section 3139, for both type 41 and type 42 Wearing Course Mixtures, Section 2331. 6.03 BITUMINOUS MATERIAL ror the mixture, the bituminous material shall be asphalt cement., 120-150 penetration. Oil content shall be within plus or minus 0.3% of the amount determined by the design mix. The oil content shall meet or exceed the minmum percentages by weight identified in Table 2331-1, Section 2331 for the appropriate mixture type. Cost of the design mix shall be incidental to the payment for bituminous base. 6.04 CONSTRUCTION Prior to the application of any bituminous wearing course mixture, the base course shall be thoroughly swept and a bituminous tack coat placed in accordance with MnDOT Specification 2357. After the street has been paved and prior to rolling, a 3/4" plywood plate shall be placed over each of these structures and the edges raked. The roller shall then roll the wear until no sign of settlement occurs and the plate may be removed. Prior to the application of any bituminous wearing course mixture, the base course shall receive a bituminous tack coat in accordance with MnDOT Specification 2357. The bituminous tack coat shall be applied at a rate of 0.05 gallons per square yard. The cost of the tack shall be included in the wear course unit price. The bituminous wear course at the edge of the curb and gutter shall be '-4" above the edge, following compaction. The additional cost of the materials along the edge shall be incidental to the cost of the wear course. ii 0 i 1 6.05 PAYMENT The bituminous wear shall be paid for on the basis of square yard-inch at plan thickness. Unless otherwise directed by the Engineer, all streets shall be constructed with a bituminous thickness as shown on the plans. I~ STREET CONSTRUCTION page 9 Payment shall be compensation for cutting the existing bituminous, sweeping, tack coat, furnishing materials, laying and rolling. At the conclusion of the project, cores in the blacktop may_ be ordered if in the opinion of the Engineer the pavement does not meet the specifications. A minimum of one core fo r every 400 feet of roadway shall be taken. The following tests shall be run by an independent test lab at the Contractor's expense. 1. Thickness 2. Marshall Density 3. Gradation 4. Extraction If the Marshall Density for the cores is less than the specified minimum density, then in lieu of being removed and replaced to an acceptable condition, it will be accepted at a reduced rate according to MnDOT Specification 2331.3, 1988 Edition. In addition, an average thickness of all the cores shall be computed. Based upon that thickness, payment for both the wear and base shall be adjusted according to the following schedule: ^ a. average thickness 0.15 inches less than plan and greater (except where orde red by the Engineer) : payment made at unit .prices. b. average thickness: 0.16-0.25 inches less than plan: 15% reduction of unit prices as bid. c. average thickness 0.26-0.50 inches less than plan: 30% reduction of unit prices as bid. d. any specific area which has a test thickness less than plan thickness minus 0.50 inches shall be replaced. r 7.OO HAUL SLIPS "Haul slips" showing tonnage of all bituminous and rock material delivered to the job site shall be submitted to the Engineer on a daily basis. All tonnage tickets shall be weighed and not estimated. Unless the method of payment called for on the proposal is by the ton, all haul slips supplies will be used for verification of the cubic yard or square yard quantities only. 8.00 CONSTRUCTION OBSERVATION AND TESTING All phases of the work shall be open to the Engineer or his f STREET CONSTRUCTION page 10 r representative and the Contractor shall allow the use of such facilities as are necessary to properly inspect the work. The Contractor shall submit test results as determined by an approved testing laboratory of all materials to be used before any related construction begins. The Contractor .shall furnish reasonable amounts of the materials during the construction progress to be used for periodic testing. 9.00 CLEANUP When the work has been completed, the Contractor shall remove from the site all extra material, equipment, debris and other supplies. The site shall be cleaned up as is necessary to leave all property in substantially the same condition as it was before the project. 10.0 SEEDING, SODDING ~ BLACKDIRT Provisions of MnDOT Specification #3878 shall govern for sod and #3876 shall govern for seed. Seeding and sodding work shall conform to MnDOT Specification #2575. The black dirt shall consist of a salvaged topsoil from the grading operations or a topsoil borrow trucked in from off the project site, which is acceptable to the Engineer. The black dirt shall be spread to a minimum "compacted" thickness of four (4) inches prior to seeding or sodding." The seed shall be MHD mixture number 500 and shall be applied at the rate of 100 pounds per acre.. All areas seeded shall be fertilized. The fertilizers shall be dry and shall contain available nitrogen, phosphoric acid and potash in proportions which will supply the minimum quantities of these plant foods. All areas seeded shall be mulched per MnDOT specifications, using Type I mulch and disc anchoring. The .Contractor shall have the topsoil tested to determine the type and application rate of fertilizers to use. For bidding purposes, the Contractor shall use an application rate of 300 pounds per acre of a 20-10-10 fertilizer. Payment for sodding shall be by the square yard and shall include the sod, salvaged topsoil, watering and all equipment and labor necessary to the proper installation of the sod. Payment for seeding shall be by the acre and shall include -the seed, fertilizer, salvaged topsoil, mulch and all equipment and labor necessary to the proper installation of the seed. Payment for topsoil borrow shall be by the cubic yard (LV) and shall include the topsoil, trucking, equipment and labor necessary for the proper installation of the topsoil borrow. All placement of black dirt behind curbing shall be done prior to paving. The Contractor shall be aware that the quantities of sod and seed used next to the curb shall be at the owner's discretion and that they may be changed or deleted with no change in the unit price. STREET CONSTRUCTION page 11 ~~J CONCRETE CURB SPECIFICATIONS DESCRIPTION ' Curb or combined curbs and gutters, sidewalks and driveway aprons shall consist of air-entrained portland cement concrete con- structed on a prepared subgrade in accordance with these specifications. This work shall be in reasonably close conformity with the lines and grades, thicknesses, and typical cross sections shown on the plans or established by the Engineer. All work shall be performed in accordance with MnDOT specifications. CONCRETE ' The air-entrained portland cement concrete shall meet the requirements of hinDOT specification 2461. The component parts shall be batched by vaeight, in proportions, to produce a concrete ,~ developing a minimum compressive .strength of 4000 psi in 28 days. The concrete shall have a uniform consistency and slump. The slump shall be betvaeen 1 and 3 inches for handvibrated concrete, between 2 and 4 inches for hand-tamped or spaded concrete, and between i and 2 inches for concrete placed by a slipform/extrusion machine. A design mix shall be submitted to the Engineer for approval prior to installation. BASE PREPARATION The base shall be a minimum thickness of 6 inches. of class 5 gravel under all curb and gutter and all driveway aprons. A minimum base thickness of 4 inches of pit run sand shall be placed beneath all sidewalks. The base shall be compacted and shall extend a minimum of 1 foot outside the curb and drives and 0.5 feet outside sidewalk forms. The base shall be reasonably dense, firm, trimmed to a uniform smooth surface and in a moist condition when the concrete is placed. i MACHINE PLACEMENT The slipform/extrusion machine approved shall be so designed as to ~, place, spread, consolidate, screed, and finish the concrete in one complete pass in such a manner that a minimum of hand finishing will be necessary to provide a dense and homogeneous concrete section. The machine shall shape, vibrate, and/or extrude the concrete for the full width and depth of the concrete section being placed. It shall be operated with as nearly a continuous forward movement as possible. All operations of mixing, delivery, and spreading concrete shall be so coordinated as to provide uniform progress, with stopping and starting of the machine held to a minimum. Concrete 1 FORMED METHOD The forms shall be of wood, metal, or other suitable material that is straight and- free from warp, having sufficient strength to resist the pressure of the concrete without displacement and sufficient tightness to prevent the leakage of mortar. Flexible or ' rigid forms of proper curvature may be used for curves having a radius of 100 feet or less. Division plates shall be metal. The front and back forms shall extend for the full depth of the concrete. All of the forms shall be braced and staked so that they remain in both horizontal and vertical alignment until their removal. They shall be cleaned and coated with an approved form-release agent before concrete is placed against them. The concrete shall be deposited into the forms without segregation ' and then it shall be tamped and spaded or mechanically vibrated for thorough consolidation. Low roll or mountable curbs may be formed without the use of a face form by using a straightedge and templet to form the curb face. When used, face .forms shall be removed as soon as possible to permit finishing. Front and back forms shall be removed without damage to the concrete after it has ~ set. FINISHING The plastic concrete shall be finished means of a wood float and then it shall texture using a light broom or burlap adjacent to forms and formed joints shall edging tool to the dimension shown on the smooth, if necessary, by be given a-final surface drag. Concrete that is be edged with a suitable plans. .T(~TNT T NCB Contraction Joints Transverse weakened-plane contraction joints shall be con- structed. at right angles to the curb line at intervals not exceeding 15 feet. Joint depth shall average at least 4 of the cross section of the concrete. Contraction joints may be sawed, hand-formed, or made by 1/8 inch thick division plates in the formwork. Sawing shall be done early after the concrete has set to prevent the formation of uncontrolled cracking. The joints may be hand-formed either by (1) using a narrow or triangular jointing tool or a thin metal blade to impress a plane or weakness into the plastic concrete, or (2) inserting 1/8 inch thick steel strips into the plastic concrete temporarily. Steel strips shall be withdrawn before final finishing of the concrete. Where division plates are used to make contraction joints, the plates shall be removed after the concrete has set and while the forms are still in place. i Concrete 2 Expansion Joints ' Expansion joints shall be constructed at right angles to the curb line at immovable structures and at points of curvature for short-radius curves. Filler material for expansion joints shall conform to requirements of ASTM D994 D1751 or D1752 and shall , , be furnished in a single 3/4 inch thick piece for the full depth and width of the joint. r Ex ansion oint i li f p j s n a s p ormed curb or curb and gutter shall be constructed with an appropriate hand tool by raking or sawing through partially set concrete for the full depth and width of the section. The cut shall be only wide enough to permit a snug fit for the joint filler. After the filler is placed, open areas adjacent to the filler shall be filled with concrete and then troweled and edged. Alternatively, an expansion joint may be installed by removing a short section of freshly extruded curb and gutter immediately, installing temporary holding forms, placing the expansion joint filler, and replacing and reconsolidating the concrete that was removed. Contaminated concrete shall be discarded,: Other Joints ' Construction joints may be either butt- or expansion-type joints. Curbs or combined curbs and gutters constructed adjacent to existing concrete .shall have the same type of joints as in the existing concrete, with similar spacing; however, contrac- tion joint spacing shall not exceed 15 feet. Curbing placed in conjunction with concrete paving shall be jointed according to the type of joint indicated on the plan and profile. PROTECTION The Contractor shall always have material available to protect the surface of the plastic concrete against rain. These .materials shall consist of waterproof paper or plastic sheeting. For ' slipform construction, materials such as wood planks or forms to protect the edges shall also be required. When concrete is being placed in cold weather and the temperature may be expected to drop below 35 degrees F., suitable protection shall be provided to keep the concrete from freezing until it is at least 10 days old. Concrete injured by frost action shall be removed and replaced at the Contractor's expense. CURING Concrete shall be cured for at least three days after placement to protect it against loss of moisture, rapid temperature change, and mechanical injury. Moist burlap, waterproof paper, white polyethy- Concrete 3 lene sheeting, white liquid membrane compound, or a combination ' thereof may be used as the curing material. Membrane curing shall not be permitted in frost-affected areas when the concrete will be exposed to deicing chemicals within 30 days after completion. of the curing period. BACKFILLING After the concrete has set sufficiently, the spaces in front and back of curbs shall be refilled with suitable material to the required elevations. The fill material shall be thoroughly tamped in layers. It shall be the Contractor's responsibility to protect the curbing during all phases of the backfilling operation. Any curbing damaged during this process shall be removed and replaced i at the Contractor's expense. ^ TESTING Not less than three test cylinders of standard size and manufacture shall be made for each 50 cubic yards of concrete placed, or for each day's operations unless otherwise directed by the Engineer. One cylinder from .each set shall be tested at seven , days and one cylinder at 28 days, in accordance with ASTM C-31. The third cylinder shall be retained as a spare in case problems occur with the other two. Air entrainment and slump tests shall be taken on each load prior to placement. ~ To cast the cylinders, fill the molds in three equal layers and uniformly rod each layer 25 times with a bullet-nosed rod. When. rodding the second and third layers, the rod should just break through into the layer beneath. The molds should be filled continuously and without interruption. After rodding the top layer, tap the cylinder lightly to close any voids that might have a trowel, and cover immediately to prevent loss of moisture. Be sure the cylinders are on a level surface during curing and that the tops are smooth and level to ensure minimum laboratory preparation and the best test results. , Test results indicating concrete substandard from the above requirements shall be reason for halting concreting operations and investigation of the cause of the deficiency, and removal and replacement of concrete placed during the period represented by the test, if, in the opinion of the Engineer, such action is necessary to protect the structural integrity of the construction. All testing shall be done at the Contractor's expense by an approved testing laboratory. Test results shall be submitted once a week to the Engineer. ri Concrete 4 n Ali ~~ ~I i ~~ n INDEX WAT~iFtMAIN CONSTRUCTION REQ Page 1. DESCRLPTION .......................... ......... 12 2. MATERIALS .......................................12 A. Water Main ................................... 12 B. Fire Hydrants .......... 13 C ....................... Valves . ...................................... 14 D. Water Service Pipe and Appur'~enances ...... 15 E. . ....... Polyethylene Encasement Material .................... . 16 F. Steel Casing Pipe ......... 16 G. ..................... . Piling ..................................... • 16 H. Granular Materials I ............................. Insulation 17 . ....... . . . .. . ................ . ...... 18 3. CONSTRUCTION REQUIREMENTS ........................ 18 A. Maintenance ................................ 18 B. Work Limits ...... ..... 19 C. ....................... Establishing Line and Grade D. ........................ P r o t e~ c t i o n o f S u r fa c e Structures 20 E. ,,,,, , , , , , , , , , , , , , , , Interference of Underground Structures ,,,,,, , , , , , , , , , , 21 21 F. , , Removal of Surface Improvements ....... 22 G. .............. Excavation and Trench Preparation 22 H. ..................... Installation of Pipe and Fittings 2 I ................. Pol eth lene Enca t f Pi 6 . J. y y semen o peline ,, , , , , , , , , , , , , , , , , , Jack-Bore Steel Casing Pi e 31 K. p ......................... Placement of Insulation 32 L. ...................... . Water Service Installations 32 M. .......................... Setting Valves, Hydrants, Fittings and Special 33 35 N. .............. Pipeline Bacl~lling Operations O. ................... . Restoration of Su ace Improvements 36 P. ................. Maintenance and Final Cleanu 37 p ...................... 37 4. 'I'FSTIh'G ......................................... 3 8 A. Disinfzction of Water Mains ................ . . . 38 B. Hydrostatic Testing of Water Mains .................... 42 C. Electrical Conductivity Test ..................... . 44 D. Operationallnspection ,,,,,,,,,,,,,,,,,,,,,,,,,,,,45 i SPEC-7<5.OJ0 10 5. METHOD OF MEASttIt]EMENr ......................... . 45 A. Water Main ......... 45 .......................... B. halves ......... ..... , 45 C. Hydrant with halve .............................. 45 D. Fittings ..................................... 45 E. Granular Material ......... 47 .... ................. F. Boring ..................................... 47 G. Y~zter Service Connection . 47 H .............. ........... Se vice Lines . r ................................. 47 I. Insulation ....... . ....... .... ........ . . . . ..... 47 J. Raise Valve Box 4 ................................ 7 6. BASIS OF PAY~NT ................................. 47 A Vr~ter Main . ................................... 47 B. Valves ...................................... 48 C. Hydrant with ~1ve ....... 48 ....................... D. Fittings ........ . . . . . . . . . . . . ....... . . . . . . . . .. 48 E. Granular Material .......... 48 F. ..................... Boring 48 ......... . .. ..... ............... . ..... G. Water Service Connection 48 H .......................... Service Line . s ................................. 48 L Insulation ......... 48 ......................... J Raise halve Box 4 8 ................................ ll i sPFC-~as.ooo 11 ' ~ ~ WAT~:RMAIN CONSTRUCTION REQ ' 1. DESCRIPTION This work shall consist of the construction of the water mains, hydrants, services and other ' appurtenances in accordance with the Plans and these General Requirements, except as modified by the Specific Requirements or the Special Provisions. All work shall comply with the requirements of the Minnesota Department of Health, the Minnesota Plumbing Code and all applicable codes and ordinances. ' All references to MnDOT specifications, other specifications, standards or designations such as AS'I'M, ANSI, AWWA, shall mean the latest published edition mailable on the date of advertisement for bids on the project. ~J u 'L I All manufactured products shall conform Lz devil to such standard design drawings as may be referenced or furnished in the contract documents. The Owner- may require advance apprrnal of material suppliers, product design, or other unspecified details as deemed necessary to insure conformance to the contract documents. Vr~ere specific manufzctured products are referenced it is to indicate a product preference of the Owner. Other manufactured products of an "equivalent" kind, type, and quality m2y be us°d if approved in writing by the Engineer. Product information, shop drawings or other information to describe the product shall be submitted to the Engineer in a timely manner such that their review does not delay the project. At the request of the Engineer, the Contrctor shall submit, in writing, a list of materials and suppliers for approval. 2. MATERIALS The materials used in this work shall. be new, conforming with the requirements of the referenced specifications for class, kind, type, size and grade of material as specined below and other details indicated in the contract. A. Water Main A.1 .Ductile Iron Pipe: Ductile iron pipe for water mains shall be Class 52 for pipe less than 12 inches in diameter, Class 50 for pipe 12 inches or la der in diameter, and shall conform to the requirements of AWWA C151 (ANSI A21.51). A.l.a Fittings: Fittings shall be Gray Iron or Ductile Iron, having a minimum working pressure rating of 150 psi, and shall conform to the requirements of AWWA C110 (ANSI A21.10), Ductile-Iron and Gray-Iron Fittings or AV1WA C153 (ANSI 21.53), Ductile-Iron Compact Fittings. SPEC-745.OOJ 12 A.I.b Lining and Coating: All pipe and fittings shall be furnished with cement mortar lining meeting the requirements of AWWA C10-~ (ANSI A21.4) for standard thickness lining, All interior and exterior surfaces of the pipe and fittings shall have a tas or bituminous seal coating at least one mil thick. Spotty or thin seal ' coating, or poor canting adhesion, shall be cause for rejection, A l i Pi , . .e o n : pe three inches and la ber in diame`~er shall have push-on joints. Fittings shall have mechanical joints. The rubber gasket shall conform to AW~'A C111 (AI~ISI A21.11). A. l.d . Electrical Conductivity: Copper straps shall be welded or otherwise permanently affixed to each pipe or appurtenance to , provide a positive means of conveyvng electricity from pipe or fitting, to pipe or fitting. Conductive pipe gaske`s may be used on pipe to pipe connections if approved by the Engineer, Size and method of affixing strap shall be subject to the apprrnal of the Engineer and shall be sufficient to meet or exceed the criteria for conductivity testing set forth >ln this specification. A.2 Polwinyl Chloride Pine: Polyvinyl chloride pipe (PVC) for water main shall conform to AWWA C 900. All pipe shall have a minimum dimension ratio (DR) of 18 corresponding to a working pressure of 150 psi for PVC type 1120 pipe. A.2.a Fittings: Fittings shall be .Gray Iron or ductile Iron, having a , minimum working pressure rating of 150 psi, and shall conform to the requirements of AWWA C110 (ANSI A21.10), or AW~~A ' C1~3 (ANSI 21.53) Ductile-Iron Compact Fittings. A.2.b 7oin`~s: Joints in plastic pipe shall be bell-end elastomeric-gasket ~' A.2.c Restrints: Restraints for C900 PVC pipe shall be Uni-Flange ' Series 1300, 1350, 1390 as may apply or equal, B. Fire HYdr.nts Fire hydrants shall be Pacer Model WB-67 as manu~ctured by V~aterous Company, and shall conform to AWWA C502, Hydrants shall b~e furnished in conformance with the following ~ supplementary requirements: B.1 Five-inch (nominal diameter) main valve opening of the type that opens against ' water pressure with a pentagonal operating nut with one-inch sides (nominal 1.5 SPEC-74 S. D00 13 , i~ ' inches from point of pentagon to opposite side), and opening counterclockwise (left). B.2 Barrels shall be two piece, non jacket type, with flanged joint above finished grade line, sixteen-inch break of eztensYOn, (24") from ground to center nozzle), and with mechanical joint connection at the hub end for joining asix-inch ductile iron branch pipe. B.3 Hydrant bury depth, measured from the top of the branch pipe connection to the ' finished .ground line at the hydrant, shall be 8'-0" (Accordiing t.o VYaterous definition of "Bury"; hydr~.nts with a bury of 8'-6" shall be furnished). i B.4 Hydrants shall have two outlet nozzles for 2-1/2 inch (I.D.) hose connection and one outlet nozzle for 4-1/2 inch (I.D.) pumper connection. Threads shall conform to NFPA No. 194 (ANSI B26) and shall be: hose connection - 7-1/2 threads per inch, 3.062" nominal outside diameter (National Standard Thread); pumper connection - 4 threads per inch, 5.750" nominal outside diameter (National Standard Thread). Nozzle caps shall be nut type with chain. B.5 Hydrant operating mechanisms shall be provided with "O" ring seals preventing ' entrance of moisture and shall be lubricated through an opening in the operating nut or bonnet. 1 B,6 Drain holes shall be left open unless indicated otherwise, if so indicated the hydrant shall be -ooed "Pump After Use". ' B.7 The Contractor shall provide the Owner with one hydrant wrench for every ten (10) hydrants supplied or portion thereof. Cost of the wrenches shall be incidental to the project. ' C. Valves ' Six inch t.o twelve inch valves shall be resilient seated gate valves, Ia ber than twelve inches shall be butterfly. Tapping tees shall have resilient seated gate valves. All valves shall be for buried service. ' C.1 Butterfly Valves: Butterfly valves shall conform to the requu~ements of AWWA C504 and the following requil-ements: a. Working pressure ratin of 150 g psi minimum. b. ~ inch square operating nut opening counterclockwise (left). c. Double "O" ring or split V type. stem seal. d. Traveling nut type operator permanently sealed and Iubricated. e. Manufacturers: Dresser, Pratt, or equal.' spFC-~as.ooo 14 1 C.2 Gate Valves: Gate valves shall conform to AWWA C509 for Resilient Seated , Valves, and shall comply with the following supplementary requiren-,ents: a. Working pressure rating of 200 psi for all sizes. , b. 'I1~ inch square operating nut opening counterclockwise (left). ' c. Double."O" ring stem seal, one above and below the stem seal.. d. Vr'eather seal on bonnet cover. ' e. Non-risil~a stem. f. Mechanical joints. , g. Manufacturers: American, Mueller, Kennedy, or equal. C.3 Valve Boxes: Valve boxes shall be 5-1/4" diameter shaft suitable for 7 5' of . cover wer the top of the water main. Boxes shall be cast iron screw type two r piece boxes with the word "WATER" on the lid. Valve boxes shall be '1}-ler 6850 with 5-1/4" drop lid, or equal. D. Water Service Pipe and Appurtenances D.1 P, ire: Water service pipe with inside diameter la der than 2 inches shall conform , _ to the requirements of Ductile Iron Pipe or Polyvinyl Chloride Pipe. Vvater service pipe 1 to 2 inches inside diameter shall be'I}~-pe K, seamless copper , water tubing, soft annealed temper and conform to the requirements of ASTM B 88. D.2 Appurtenances: a. Corporation Stou: For use with flared copper service i ,and the inlet P Pe ' threaded wZth the standard AWWA taper thread. b St C F , . urb on: or use with dared copper service pipe both ends, .inverted key, and Miru~eapolis pattern. b B c. ur ox: Minneapolis pattern base, 78"-81" stationary rod, 12 inch box adjustment firom 7' to 8', lid with pentagon plug, and 1-1/4" I.D. upper section. d. Service Saddle: Double strap bronze type. e. Wrenches and Keys: .The Contractor shall rovide the Owner with one 3' , P curb boz shutoff rod and pentagon key for every 20 curb boxes supplied s~EC-~as.o~o 15 ' or portion thereof, minimum of 3. Cost of keys shall be incidental to the p~ject. f. Manufacturer: Appurtenance Corporation Stop Curb Stop Curb Box Shutoff Rod Service Diameter 1" - 2" 1" - 2" Manufacturer's Number Mueller McDonald Ford H-15000 4701 F-600 Mark II Oriseal H-15154 1" H-10300 1-1/2" - 2" H-10300/H10344 H-10321 6104 B22-333M-3/4" B22-444M-1" B?2-b66lvi 1-12" B22-777M-2" 5614 5615 305 Pentagon Key H-10325 304K Saddle DIl' H-16123-16137 --- 202B PVC-C900 H-13420-13435 3801 590 E. Polvethvlene Encasement Material Polyethylene encasement material shall conform to AWWA C105 1~pe A for tube type installation and 8 mil nominal film thickness. F. Steel Casino Pipe Steel casing pipe for jack-boring shall have a wall thickness of 0.375 inches for casing pipe up to 24 inch diameter, and a wall thickness of 0.500 inches for casing pipe 26 to 32 inches in diameter. G. Pilina Piling shall be constructed in accordance with the provisions of MnDOT Specification 2452. Piles for pipelines shall be Treated Timber, in accordance with 1lSnDOT 3471. SPEC-745.000 16 H. granular Materials Granular materials furnished for foundation, bedding, encasement, backfill or other purposes as may be specified shall consist of any natural or synthetic mineral aggrega`~e such as sand, gravel, crushed rock, crushed stone, or slag, that shall be so graded as to meet the gradation requirements specified herein for each particular use. H.1 Granular Material Gradation Classifications: Granular materials furnished for use in Foundation, Bedding, Encasement, or Bacld'ill construction shall conform to the following requirements: Percent Passing ieve ize Foundation* Bedding Encasement Bacldll 3 Inch 2 Inch 100 l Inch 100 100 100 3/4 Inch 8$-100 90-100 90-I00 3/8lnch 30-60 50-90 50-90 No.4 0-10 35-80 35-80 3$-100 I~To. 10 20-6$ 20-6$ 20-100 I~To.40 0-3$ 0-35 0-35 l~To.2oo 0-lo alo o-lo *3/4" to 1-1/2" material may be used in lieu of Foundation specified H.2 Granular Material Use Designation: Gr~.nular materials provided for Foundation, .Bedding, Encasement, or Bac>~ll use as required by the Contrct, either as part of the pipe item work unit or as a BID item, shall be classified as to use in accordance with the following: Material Use Designation Zone Designation Granular Foundation Placed below the bottom of pipe grade as replacement for unsuitable or unstable soils; to zchieve better foundation support. Granular Bedding Placed below the pipe midpoint, prior to pipe installation, to facilitate proper shaping and achieve unifrrrn pipe support. Granular Encasement Placed from pipe midpoint to one foot above the top of pipe, after pipe installation, for protection of the pipe and to assure proper filling of voids and thorough consolidation of back~ll. ~~ ii u spF,c-~as.c~ 17 ~ a. requirements. Acceptance forms fzvm the governing agency shall be furnished to the Engineer. Hydrostatic Testing of Vt~ter Mains Each valved section shall be subjected to the pressure test and, if required, the leakage test pre_ccribed hereil-~. Testing for the two (2) hour duration shall be with hydrants closd, and valves. on hydrant leads 2nd dead end water lines open. Once this portion of the test is completed, the valve on the hydant leads and dead end water lines shall be closed and hydrants opened. The specified test pressure shall be applied, and the test repeated for 15 minutes to es~blish the condition of the hydrant lead ~T~lves. This shall apply to both the pressure and Ieal~ge test. The Engineer or Owner may require the Contractor to test the first section of pipe installed to demonstrate the Contractors ability to install the pipe in an acceptable manner. When the connection to the existing system is not made with a valve, the Contractor shall test the existing section to the first available salve(s) to determine the condition of the existing system, or the Contractor may make provisions t.o test his work separately, prior to connection to the existing system, in a manner acceptable to the Engineer. The Con`~r-actor shall furnish the pump, pipe connections, gauges, and measuring equipment, and shall perform the testing in the presence of the Engineer. The pressure gauge for the test shall be an Ashcroft Model 1082 with 4-1/2 inch dial face at 1 psi increments. Where permanent air vents are not provided, the Contractor shall provide and install corporation cocks at the high points as needed for release of air as the line is filled with water. Where concrete rrzction blocking is placed, the water main shall not be subjected to hydrostatic pressure until at least 5 days have elapsed after the concrete placement, with the exception that this period may be reduced to 2 days where high early strength concrete is used. At~ the option of the Engineer, the pressure and leakage tests may be conducted simultaneously. Any defective joints, pipe, fittings, valves, or hydrants, revealed during the testing or before final acceptance of the work shall be satisfactorily corrected and the tests shall be repeated until the specified requirements have been met. B.1 Pressure Test: The section being tested shall be slowly filled with water and the specified test pressure shall be applied after all air has be`n expelled from the pipe. A hydrostatic pressure of 150 pounds per square inch, gauge pressure, measured at the lowest point of elevation, shall be applied by means of a pump connected t:o the pige in a satisfactory manner. The gauge pressure shall be checked after aminimum- of two (2) hours. A pressure drop of 1 psi. or less will be cause to accept the test section. Several attempts must be made to satisfy the Engineer the pressure test will not be successful. If the drop is more than 2 psi after these attempts, the Engineer may authorize the leakage test in writing for acceptance. Service Pipe may be tested at the time of the foregoing test, if installed, at the Contractor's option. However, testing of service pips may be completed as a .separate operation from main testing, and if so, the test pressure- shall be 100 p.s.i. Service pipe testing, if done separately, shall be done with the corportion stop open. B.2 ._ ae Test: After ~z unsatis~ctory pressure test, and if authorized in writing by the Engineer a leakage test shall be performed on eZCh valved section of water main to determine the quantity of wager that must be supplied into the section to maintain a test pressure of 150 pounds per square inch, after the air in the pipeline has been expelled and the pipe has been filled with water. The water added shall be recorded to the nearest fluid ounce. After filling the pipe with water and expelling all air in the line, a pressure of 150 psi shall be applied in the same manner as prescribed for the pressure test, and sufncient water sha11 be measured and supplied into the pipe section t.o maintain the pressure for a test duration of two (2) hours. Each pipe seotion tested will be accepted. if the leakage does not exceed the quantity determined by the formula as shown in the table below, based on an allowable leakage of 11.65 gpolmileJnominal diameter inch at 150 psi. ~~~ 133,200 L =Maximum permissible leakage in gallons per hour S =Length of pipe tested D =Nominal diameter of pipe in inches P =Average test pressure during the test, in pounds per square inch, gauge pressure. . ALLOWABLE LEAKAGE PER 1000 FEET OF PIPE GALLONS PER HOUR Avg.Test Pressure Nominal Pipe Diameter - in. psi 4 6 8 10 12 14 16 18 20 24 200 0.43 0.64 0.85 I.46 1.28 1.48 1.70 1.91 2.12 2.55 175. 0.40 0.59 0.80 0.99 ~ 1.19 1.39 1.59 1.79 1.98 2.38 150 0.37 0.55 0.74 0.92 1.10 1..29 1.47 1.66 1.84 2.21 125 0.34 0.50 0.67 0.84 1.01 1.18 1.34 1.51 1.68 2.01 100. 0.30 0.45 0.60 0.75. 0.90 1.05 I.20 1.35 1.50 1.80 70 0.25 0.38 0.50 0.63 0.75 0.88 1.00 1.13 1.26 1.51 SPEC-;<S.D~O 43 0 0 n 0 LI CI fl ~ ~. i If the pipe section under test contains pipe of various diameters, the allowable leakage will be the sum of the computed leakage for each size. W1~en requested, the Contractor shall furnish a written report of the results of leakage tests, which shall identify the specific test section, the average pressure, the duration of test, and the amount of Ieaktge. Eleciriczl Conductivi , Test The Contractor shall perform a conductivity test within one week after completion of pressure testing of the main on all iron pipe water mains. The Engineer or a~ner may require the Contractor to test the first section of pipe installed to demonstrate the Contractors ability t.o install the pipe zz an acceptable manner. When the connection to the existing system is not made with a valve, the Contractor shall test the existing section to the first available salve(s) to determine the condition of the existing system, or the Contractor may make provisions to test his work separately, prior t.o connection to the existing system, in a manner acceptable to the Engineer. The system (pipeline, valves, fittings and hydrants) shall be tested for electrical continuity and current czpacity. The electrical test shall be made after the hydrostatic pressure test and while the Line is at normal operating pressure. Backfilling shall have been completed. The line may be tested in sections of convenient length as approved by the Engineer. Direct current of 350 amperes plus or minus 10 0, shall be passed through the pipeline for 5 minutes. Current flow through the pipe shall be measured continuously on a suitable ammeter and shall remain steady without interruption or fluctuation throughout the 5-minute test period. Insufficient current or intermittent current or arcing, indicated by la be fluctuation of the ammeter needle, shall be evidence of defective contact in the pipeline. The cause shall be isolated and corrected. Thereafter, the section in which the defective test occurred shall be retested as a unit and shall meet the requirements. Sources of D. C. for these tests may be motor generators, arc welding machines, or other approved sources. All such equipment shall be furnished by the Contractor. Cables from the power source to the section of system under test should be of sufficient size t4 carry the test current without overheating or excessive voltage drop. Note: After the test, the hydrant shall be shut off and a cap Ioosened to allow hydrant drainage. 'lighten cap after, drainage. SPEC• i45.0;~ 44 7 D. Qperationallnspection At the completion of the project and in the presence of the Engineer and the Contractor, representatives of the Owner shall operate all valves, hydrants, and water services to a_zcertain that the entire fccility is in good working order; that all valve bones are centered and valves are opened; that all hydrants operate and drain properly; that all curb bones are plumb and centered; and that ~2ter is available at all curb stops. _.5. METHOD OF MEASUREMENT A. Watermain V~=atermain of each type and diameter shall be measured separately in linear feet. Measurements shall be made along the pipe centerline without deductions in length for fittings, valves and other specials. Lengths of branches shall be measured from the centers of connecting pipes to centers of salves or fittings. In the case of hydrant leads, the compensation length shall be from the center of the connecting maLZ to the center of the valve. All length shall be measured in a horizontGl plane unless the grde of the pipe exceeds fifteen percent. B. Valves C. D. Valves of each kind and size shall be measured separately as complete units including the valve box setting. Hvdrant ~~ith Valve Hydrant with valve shall be measured on a per unit basis. The unit includes hydrant, 6" valve and salve box, 6" pipe between valve and hydrant, crushed rock, and blocking or restraining devices. Fittin Fittings shall be measured on a pound basis of standard weight of fittings as published in AWWA C110 excluding the weight of glands, gaskets, bolts or other accessories. If the Contractor chooses to use compact ductile iron fittings, AV1WA C153, measurement compensation for material price and weight differences shall be per AWWA C110. The fitting weights for payn-gent purposes are provided in the following tGble: r~ n 0 n u f7 n spF.c.;<s.o~ 45 DUCTILE-IRON & GRAY IRON MECHANICAL-JOINT FITTINGS Vr~'eight in Pounds per A`~r'WA C110 Bends (MJ- MJ~ . ~Q 4~ 22-1/2 11-1/4 levee Caps Plugs 4" 55 50 50 50 35 IS 15 6" 85 75 75 75 45 25 25 8" 125 I10 110 110 65 45 45 10" 180 155 160 160 85 60 65 12" 255 215 220 220 110 80 85 14" 340 270 275 275 165 130 120 16" 430 340 345 345 200 175 155 18" 545 420 430 430 240 225 220 20" 680 530 535 540 275 285 255 24" 1025 755 765 770 360 400 390 Reducers (MJ-MJ) X4 X6 X 8 X 10 X 12 X 14 X 16 X 18 X20 8" 80 95 - - - - - - 10" 105 115 135 - - _ - _ _ _ 12" 135 150 1b5 190 - - _ _ _ 14" - 190 210 230 255 - - _ _ 16" - 230 250 280 305 335 - - 18" - - 295 325 350 380 415 - - 20" - - - 375 405 430 470 510 - 24" - - - - 550 575 615 660 705 Tees (all MJ) X4 X6 X8 X10 X12 X14 X16 X18 X20 X24 6" 115 125 - _ _ _ _ _ 8" 165 175 185 - _ _ _ _ _ 10" 235 250 260 310 - - _ _ _ _ I2" 315 325 340 390 410 - _ _ 14" - 435 450 465 540 585 - - 16" - 540 550 570 590 710 740 - 18" - S90 605 620 640 755 905 945 20" - 725 735 755 775 795 945 1140 1185 - 24" - 985 1000 1020 1030 1055 1075 1400 1720 1815 sP c-;<s.oo~ 46 Crosses (all MJ) X4 X6 6" 140 160 8" 189 205. 10" 260 285 12" 34~ -.360 14" - 475 16" - 575 18" - 625 20" - 760 24" - 1025 X$ X10 X12 X14 XIS ~ X2Q X24 235 - 310 380 385 460 495 500 540 630 605 645 685 655 685 725 790 820 860 1445 1085 1110 710 - - - 830 895 - - - 870 1060 1130 - - 905 1085 1330 1415 - 1155 1200 1590 1965 2155 E. Granular Material Granular material used as specified shall be measured on a per ton basis. Weight slips. shall be required. F Boring Borings shall be measured in linear feet as specified on the plans or approved by the Engineer. The water main carrier pipe shall be measured under the water main item. G. Water Service Connection Water service connections shall be measured on a unit basis for each size and type. T7-,e connection shall include the corporation stop, tapping saddle where required, curb stop, and curb .box. H. Service Lines Service lines shall be measured in lineal feet horizontally from the centerline of the water main t.o the end of the service line.. Separate measurements shall be made for each size of service line required. I. Insulation Insulation shall be measured by the square foot for the specified thickness. T. Raise Valve Box Raising valve boxes for the final lift of bituminous paving shall be measured per each. s~rc• ~<s. o00 47 6. BASIS OF PAYMENT ' A. mater Main V~ater main shall be paid for at the contract unit price per linear foot for each type and diameter. Payment for the excavation and backfilling of the trench shall be included in the payment for the water main and testing, as well as any required dewatering, sheeting or shoring for which separate payment is not pl-~vided. 1 B. V ' valves of each type and size shall be paid for at the unit contract price per each, including installation, naive box and adjustment of the valve box. ' C. Hvdrant with Valve ' Hydrant with valve shall be paid for at the unit contract price per each including installing hydrant, connecting piece of pipe (between valve and hydrant), valve, valve box, concrete base, coarse gruel and blo~king. D. Fittings ' Fittings shall be paid for at the unit contract price per pound including installation and blocking. E. Granular Material ' Granular material shall be paid for at the contract unit price per ton based on weight tickets collected at the project site. The price shall include all costs for delivery, placement and ' compaction. F. Bonn Borings shall be paid for at the contract unit price r linear foot of borin fo Pe g reach type and size of casing pipe specified. The payment per linear foot shall include the payment for ' furnishing and installing the casing pipe, The water main comer pipe shall be paid for under the appropriate bid item. ' G. `Voter Service Connection tiVater service connection shall be paid for at the contract unit price per each type and size including corporation stop, curb stop, curb box and tapping saddle where required: H. Service Lines ' Service lines shall be 'd for at the con u ' P~ tract rut pnce per linear foot for each type and size of service line installed. 1 s~rc•~;s.ooo 48 J STANDARD 1 u UTILITIES SPECIFICATIONS FOR Watermain and Service Line Installation and Sanitary Sewer and Storm Sewer Installation Revised, 1988 Published By CITY ENGINEERS ASSOCIATION OF MINNESOTA In Cooperation-With Associated General Contractors, Inc. Consulting Engineers Council of .Minnesota Minnesota Public Works Association Minnesota Society of Professional Engineers Minnesota Underground Contractors Association i ' CONTENTS PART I STANDARD SPECIFICATIONS FOR WATERMAIN AND SERVICE LINE INSTALLATION - 2611 2611.1 Description ............................... ... 1 2611.2 Materials ........................................ 2 A. ~aTater Pipe Materials• ::::::::::::::::::::::::::..::::. 2 B. Fire Hydrants 3 C. Valves and Valve Housings ........................... 4 D. Water Service Pipe and Fittings ..................... 6 E. Polyethylene.Encasement.Material::::: .:::::::::::::..: 7 F. Mortar 7 G. Concrete ............................................ 7 1 H. Granular Materials• :::::::::::::::::::::::::::::::::: 7 I. Piling 9 J. Insulation ......................................... 9 2 1 Construction Re i 61 .3 qu rements ........................ 9 A. General Provisions ......................•....•••••.•. 9 B. Excavation and Preparation of Trench.. .14 C. Installation of Pipe and F~ings ................. .20 D. Connection and P.ssembly ints ...................25 E. tn~ater Service Installa .........................27 F. Setting Valves, Hydr~~ Fittings & Specials........30 G. Disinfection of Wa r~'Mins ..........................31 H. Electrical Condu ~ity Test ........................32 t I. Hydrostatic T ~ of Watermains •• .................33 J. Pipeline Backfling Operations .•.• .................35 K. Restoration of Surface Improvements . .................36 L. I~iaintenance and Final Cleanup .38 M. Operational Inspection•••••••..• .....................39 2611.4 Method of Measurement .....•.••.•. ..............39 A. Water-.Pipe ..........................................40 ' B. Valves ..............................................40 C. Corporation Stops .40 D. Curb Stops ...........................................40 E. Hydrants ...........................................40 F. Air Vents ..40 G. Rearrangement of Inplace Facilities .................40 H. Polyethylene Gray Iron Fittings .....................41 I. Ductile and Gray Iron Fittings ........ ............41 J. Access Structures .................................41 K. Granular Materials ..................................41 L. Piling ..............................................41 M. Insulation .41 ' 2611.5 Basis of Payment .................................42 - iii - 1 1 L~ 1 PART II STANDARD SPECIFICATIONS FOR SANITARY SEWER AND STORM SEWER INSTALLATION - 2621 2621.1 Description 2621.2 Materials A. Sewer Pipe and Service Line Materials B. Metal Sewer Castings C. Precase Concrete Manhole and Catch Basin D. Concrete E. Mortar F. Granular Materials G. Piling H. Insulation 2621.3 Construction Requirements A. General Provisions B. Excavation and Preparation of Trench C. Installation of Pipe and Fittings D. Appurtenance Installations E. Sewer Service Installations F. A4anhole and Catch Basin Structures G. Reconnecting Existing Facilities H. Sanitary Sewer Leakage Testing I. Pipeline Backfilling Operations J. Restoration of Surface Improvements K. Maintenance and Final Cleanup L. Deflection Test M. Televising 2621.4 Method of Measurement A. Sewer Pipe B. Manholes C. Catch Basins D. Outside Drop Connection E. Service Connection F. .Service Pipe G. Special Pipe Fittings H. Appurtenant Items I. Granular Materials J. Piling K. Insulation 2621.5 Basis of Payment - iv - 2621.1 DESCRIPTION ' This work shall consist of the construction of pipe sewers utilizing plant fabricated pipe and other appurtenant materials, installed for conveyance of sewage, industrial wastes, or storm water. The work includes construction of manhole and catch basin structures and other related items a s specified. Use. of the term "Plans,. Specifications, and Special ' Provisions" within-this specification shall be construed to mean thos e documents which compliment, modify, or clarify these specifications and are accepted as an enforceable component of the Contract or Contract Documents. All references to MnDOT Specifications shall mean the latest published edition of the Minnesota Department of Transportation Standard Specifications for Construction, as modified by any MnDOT Supplemental ' Specifications issued before the date of advertisement for bids. All references to other Specifications of AASHTO, ASTM, ANSI, AWWA, etc. shall mean the latest published edition available on the date of advertisement for bids. 2621.2. MATERIALS , All materials required for this work shall be new material conforming to reouirements of the referenced specifications for the class, kind, type, size, grade, and other details indicated in the Contract. Unless otherwise indicated, all required materials. shall be furnished by the Contractor. If any options , are provided for, as to type, grade, or design of the material, the choice shall be limited as may be stipulated in the Plans, Specifications, or Special Provisions. , All manufactured products shall conform in detail to such standard design drawings as may be referenced or furnished in the Plans. Otherwise, the Owner may require advance approval of material suppliers, product design, or other unspecified details as it deems desirable for maintaining adopted standards. At the request of the Engineer, the Contractor shall submit in writing a list of materials and suppliers for approval. Suppliers shall submit a Certificate of Compliance that the materials furnished. have been tested and are in compliance with ' the specifications. A Sewer Pipe and Service Line Materials All pipe furnished. for main sewer and sewer line installations shall be of the type, kind, size and class. indicated for each particular line segment as shown in the Plans and designated in the. Contract Items. Wherever - 44 - i connection of dissimilar materials or designs is required, the method of joining and any special fittings employed shall be subject to approval by the Engineer. ' Al Vit ifi d Cl Pi r e ay pe and F~.ttings Vitrified clay extra strength pipe and fittings shall ' conform to the requirements of ASTM C-700 for the size and type and class specified, subject to the following supplementary provisions: ' (1) Unless otherwise specified, the pipe and fittings shall be non-perforated, full circular type, either glazed or unglazed. (2) All pipe and fittin s manufactured with - g bell and- spigot ends shall be furnished with factory fabricated compression joints conforming to the requirements of ASTM C-425. (3) In lieu of the bell-and-spigot jointing requirements, the pipe and fittings may be furnished with plain ends, in which case the jointing shall be by means of compression couplings conforming to the requirements ' of ASTM C-425, Type B. (4) All clay pipe fittings (wyes, tees, bends, plugs, etc.) shall be of the same pipe class and joint design as the pipe to which they are to be attached. (5) Pipe and fittings manufactured to the standards of AASHTO M-65 may be acce ted b i p y pr or approval of the Engineer. A2 Pl ti as c Truss Pipe and Fittings Plastic truss pipe and fittings shall conform to the ' requirements of ASTM D-2680, Acrylonitrile-Butadiene- Styrene (ABS) Composite Pipe, and Polyvinyl Chloride (PVC) pipe, 8 inch through 15 inch diameter and joint type ' specified, subject to the following supplementary pro- visions: (1) Unless otherwise specified, all pipe joints and fittings connections shall b e gasket seal joints, assembled. as recommended by the pipe manufacturer. Solvent cemented joints, assembled as recommended by the pipe manufacturer, shall be provided only where specifically indicated in the Plans, Specifications , and Special Provisions. - 45 - (2) All factory cut pipe ends shall be sealed at the plant or in the field with suspended ABS joint cement. ' (3) The spigot end of each pipe section shall be provided with suitable marking or gasket stop to indicate full closure of the assembled joints. (4) .Unless otherwise specified, the pipe shall be fur- nished with coupling factory-attached to one end of each pipe section. Tee and wye .fittings may be furnished separately for field installation. A3 Ductile Iron and Gray Iron Pipe and Fittings The pipe and fittings furnished shall be of the Ductile Iron or Gray Iron type as specified for each particular use or installation. When Gray Iron is specified, either type may be furnished. Gray Iron may not be substituted for Ductile Iron unless specifically authorized in the Plans, Specifications, and Special Provisions. Ductile iron pipe shall conform to the requirements of ANSI A-21.51 (Ductile Iron Pipe Centrifugally Cast in Metal Molds or Sand-Lined N,olds). Gray iron pipe shall conform to the reouirements of ANSI A-21.6 (Cast Iron Pipe Centrifugally Cast in Metal Molds) or to the ..requirements of ANSI. A-21.8 (Cast. Iron Pipe Centrifugally Cast in Sand-Lined Molds). In addition, the pipe shall comply with the following supplementary provisions: (1) Fittings shall conform to the requirements of ANSI A-21.10 (Gray Iron and Ductile Iron Fittings) or ANSI A-21.53 (Ductile Iron Compact Fittings) for the joint type specified. (2) Unless otherwise specified, all pipe and fittings shall be furnished with cement mortar lining meeting the requirements of ANSI A-21.4 for standard thickness lining. All exterior surfaces of the pipe and fittings shall have an asphaltic coating at least one mil thick. Spotty or thin seal coating, or poor coating adhesion, shall be cause-for rejection. A4 Reinforced Concrete Pipe and Fittings Reinforced concrete pipe, conform with the requirements (Reinforced Concrete Pipe) for class specified, subject to provisions: fittings and specials shall of MnDOT Specification 323 6 the type, size, and strength the following supplementary I--~ L~ fl - 46 - ii i (1) All branch fittings such as tees, wyes, etc. shall be cast as integral parts of the pipe. All fittings and specials shall be of the same strength class as the pipe to which they are attached. (2) When flexible watertight joints are specified, joints shall meet the requirements of ASTM C-361. (3) Lift holes will not be permitted unless specifically authorized in the Plans, Specifications, and Special Provisions. A5 Corrugated Steel Pipe and Fittings Corrugated steel pipe and fittings shall conform to the requirements of MnDOT Specification 3226 (Corrugated Steel Pipe) for the type, size and sheet thickness specified, subject to the following supplementary provision: (1) When specifically provided for in the Plans, Specifi- cations, and Special Provisions, the galvanized steel pipe and fittings. shall be furnished with special aramid fiber bonded, bituminous, or plastic coating or concrete lining as required. A6 Polyvinyl Chloride Pipe and Fittings Smooth walled polyvinyl chloride pipe and fittings shall conform with the requirements of ASTM D-3034 for the size, standard dimension ratio (SDR), and strength requirements. indicated on the Plans., Specifications, and Special Provisions. The grade used shall be resistant to aggressive soils or corrosive substances in accordance with the requirements of ASTM D-543. (1) Unless otherwise specified, all pipe and fittings shall be SDR 35 and connections shall be push-on with elastomeric gasketed joints which are bonded to the inner wall of the gasket recess of the bell socket. Corrugated polyvinyl chloride pipe and fittings with smooth interior shall conform with the requirements of ASTM F-949 for the size and wall thickness indicated on the Plans, Specifications, and Special Provisions. (1) Unless otherwise specified, shall be .push-on with snug meeting tightness requirements all. pipe and fittings fit elastomeric joints of ASTM 3212. - 47 - ~II A7 Cast Iron Soil Pipe Unless otherwise specified in the Plans, Specifications, and Special Provisions, .cast iron pipe shall be service weight pipe meeting the requirements of ASTM A-74 and the Plans, Specifications, and Special Provisions. Unless otherwise specified, pipe joints shall be push-on, sealed with elastomeric gaskets. A8 Acrylonitrile-Butadiene-Styrene Pipe Acrylonitrile-Butadiene-Styrene (ABS) solid wall pipe and fittings shall conform to the requirements of ASTM D-2751 for 4 inch and 6 inch diameter and joint type specified, subject to the following supplementary provi- sions: (1) Unless otherwise specified, all pipe joints and fitting connections shall be gasket seal joints, assembled as recommended by the pipe manufacturer. Solvent cemented joints, assembled as recommended by the pipe manufacturer, shall be provided only where specifically indicated in the Plans, Specifications, and Special Provisions. B Metal Sewer Castings Metal castings for sewer structures such as manhole frames and covers, catch basin frames, grates and curb boxes, shall conform to the requirements of ASTM A-48 (Gray Iron Castings), subject to the following supplementary provisions: (1) Casting assemblies or dimensions, details, weights, and class shall be as indicated in the detailed drawings for the design designation specified. Unless otherwise specified, the castings shall be Class 30 or better. (2) Lid-to-frame surfaces on round casting assemblies shall be machine milled to provide true bearing around the entire circumference. (3) Casting weight shall be not less than 95 percent of theoretical weight -for a unit cast to exact dimen- sions, based on 442 pounds per cubic foot. (4) A Certificate of Compliance shall be furnished with each shipment of castings stating that the materials furnished have been tested and are in compliance with the specification requirements. u fl 0 - 48 - (5) Unless otherwise specified, .sanitary sewer manholes in ' areas subject to flooding by surface water shall have self-sealing lids and recessed pick holes. (6) Unless otherwise specified, sanitary sewer manhole lids shall have recessed pick holes. ' C Precast Concrete Manhole and Catch Basin Sections Precast concrete riser sections and appurtenant units (grade rings, top and base slabs, special sections, etc.) ' used in the construction of manhole and catch basin structures, shall conform with the requirements of ASTM ' C-478, subject to the following supplementary provisions: (1) The precast sections and appurtenant units shall conform to all requirements as shown on the detailed ' drawings. (2) Joints of manhole riser sections shall be tongue and groove with rubber "O" ring joints provided on ' sanitary sewer manholes. Sanitary sewer inlet and outlet pipes shall. be joined to the manhole with a gasketed, flexible, watertight connection or any watertight connection arrangement that all dif ows fer- ential settlement of the pipe and manhole wall to take place. ' (3) Air-entrained concrete shall be used in the production of all units. Air content shall be maintained within ' the range of 5 to 7 percent. (4) A Certificate of Compliance shall be furnished with each shipment of precast manhole and catch basin ' .sections stating that the materials furnished have been tested and are in compliance with the specifica- tion requirements. ' (5) Lift holes will not be permitted in precast .manholes. D Concrete Concrete for cast-in-place masonry construction shall be produced and furnished in accordance with the .requirements 1 of Nu'iDOT Specification 2461 for the mix designation indicated in the Plans. The requirements for Grade B concrete shall be met .where a higher grade is not ' specified. Type 3 (air-entrained) concrete shall be furnished and used in all structures having weather exposure. J - 49 - 1 ii E Mortar ' .Mortar for use in masonry construction shall be an air-entrained mixture of one part Portland cement and three parts mortar sand, with sufficient water to produce proper , consistency, and with sufficient air-entrained agent added to maintain an air content within the range of 7 to 10 percent. Mortar shall meet the requirements of ASTM C-270. ' F Granular Materials Granular materials furnished for foundation, bedding, ' encasement, Backfill, or other purposes as may be specified shall consist of any natural or synthetic mineral aggregate such as sand, gravel, crushed rock, crushed stone, or slag, ' that shall be so graded as to meet the gradation requirements specified herein for each particular use. , F1 Granular Material Gradation Classifications Granular materials furnished for use. in Foundation, Bedding, Encasement, or Backfill construction shall conform , to the following requirements: Percent Passing Material Use Designation` Sieve Size Foundation Bedding Encasement Backfill 3 Inch 2 Inch 100 , 1 Inch 100 100 100 3/4 Inch 85-100. 90-100 90-100 3/8 Inch 30- 60 50- 90 50- 90 , No. 4 0- 10 35- 80 35- 80 35-100 No. 10 20- 65 20- 65 20-100 No. 40 0- 35 0- 35 0- 35 No. 200 0- 10 0- 10 0- 10 ' NOTE: Granular foundation, bedding and encasement material provi- ' ded for plastic pipe and fittings shall meet the require- . ments of ASTM 2321, Class I, II or III materials or the requirements provided above if the Engineer authorized such substitution. ' F2 Granular Material Use Designations , Granular materials provided for Foundation, Bedding, Encasement, or Backfill use as required by the Plans, Specifications and Special Provisions, either as part of ' the pipe item work unit or as a separate. Contract Item, shall be classified as to use in accordance with the following: ' - 50 - Material Use Designation Zone Designation ' Granular Foundation -------- Placed below the bottom of pipe grade as replacement for unsuit- able or unstable soils, to achieve better foundation support. Granular Bedding ----------_ placed below the pipe midpoint, prior to pipe installation, to ' facilitate proper shaping and to achieve. uniform pipe support. Granular Encasement -------- Placed below an elevation one foot above the to of i ft p p pe, a er pipe installation, for protection of the pipe and to assure proper filling of voids or thorough consolidation of backfill. ' Granular Backfill --------__ placed below the surface base course, ~if any as the sec d , on stage of backfill, to minimize trench settlement and provide ' support for surface improvements. In each case above, unless otherwise indicated the , lower limits of any particular zone shall be the top surface of the next lower course as constructed. The upper limits of each zone are established to define variable needs for material gradation and compaction or void ' content, taking into consideration the sequence of con- struction and other conditions. The material use and zone designations described above shall only serve to fulfill the objectives and shall not be construed to restrict the use of any particular material in other zones where the gradation requirements are met. G Piling Piling shall be constructed in accordance with provi- ' sions of MnDOT Specification 2452. ' H Insulation Main insulation shall be extruded rigid board material having a thermal conductivity of 0.23 BTU/hour/squaoe ' foot/degree Fahrenheit/per inch thickness, maximum, at 40 F mean, a compressive strength of 35 psi minimum, and water absorption of 0.25 percent by volume maximum. ' Unless otherwise specified in the Plans, Specifications, and Special Provisions, board dimensions shall measure 8' ' long, 2' or 4' wide, and 1" or 1'-z" thick. 0 - 51 - 1 I ~~ 2621.3 CONSTRUCTION REQUIREMENTS A General Provisions Al Maintenance of Traffic Whenever work interferes with the flow of traffic along ' a roadway, the Contractor shal•1 provide for traffic control and signing and public .safety in accordance with the provisions of Appendix B of the Minnesota Manual of Uniform Traffic Control devices and MnDOT Specifications 1404 and , 17.10, and the Special Provisions. Neither road closures nor detours shall be permitted unless specified in the Special Provisions or authorized by the Engineer. Where road ' closures or detours are permitted by the Engineer, the Engineer shall determine the appropriate agencies, boards, or departments the Contractor must notify prior to taking ' the action and the proper advance notice to be provided to each body. Compliance with this requirement shall not be construed , to relieve the Contractor from the responsibility- of notifying agencies or institutions whose services may be predicated upon a roadway being opened to traffic or whose ' services would be hindered if a roadway is closed to traffic. Such agencies or institutions shall include,. but not be limited to, the police department, the fire department, municipal bus service, school bus service, and ambulance service. The Contractor shall keep the required agencies informed of changing traffic patterns and detour situations. ' A2 Establishing Line and Grade ' In locations where the sewer is in direct conflict with existing watermain and water services, the watermain .and ' water services shall be lowered to provide at least 18 inches of vertical distance between the top of the watermain or service and the bottom of the sanitary sewer or relocated in accordance with Plans. , When local conditions prevent a vertical separation as described, the following construction shall be used: ' a vertical separation of at least 18 inches between the bottom of the sewer and the top of the. watermain; , adequate structural support for the sewers to prevent excessive deflection of joints and settling on and breaking of the watermains; ' that the length of water pipe be centered at the point of crossing so that the joints will be equidistant and as far as possible from the sewer. , J - 52 - I~ Watermains shall be laid at least 10 feet horizontally ' from any sanitary sewer, storm sewer or sewer manhole, whenever possible. When local conditions prevent a horizon- tal separation of 10 feet, a watermain may be laid closer ' to a storm or sanitary sewer provided that: (1) The bottom of the watermain is at least 18 inches above the top of the sewer; ' (2) Where this vertical separation cannot be obtained, the sewer shall be constructed of materials and with joints that are equivalent to watermain standards of ' construction and shall be pressure tested to assure water tightness prior to backfilling. The primary line and grade will be established by the ' Engineer. For trench installation., line and grade stakes will be set parallel to the proposed pipeline at an appropriate offset therefrom as will best serve the ' Contractor's operations wherever practical. For tunnel installation, line and grade stakes will be set directly above the proposed pipeline setting. Grade and line stakes will be set at 25-foot intervals along the pipeline; at each change in line or grade, and as needed for pipeline appurtenances. The Contractor shall arrange operation s to avoid unnecessary interference with. the establishment of the primary line and grade stakes, and s-hall render whatever assistance may be required by the Engineer in accomplishing the staking. The Contractor shall be responsible .for preservation of the primary stakes, and, if negligent in providing necessary protection, shall bear the full cost of any restaking. The Contractor shall be solely responsible for the correct transfer of the primary line and grade to all working points and for construction of the work to the prescribed lines and grades as established by the Engineer. Following construction of a work shaft on tunnel installa- tions, the line and grade shall be transferred down the shaft and be projected into and throughout the length of each tunnel heading. A3 Protection of Surface Structures All surface structures and features located outside the permissible excavation limits for underground installa- tions, together with those within the construction areas which are indicated in the Plans as being saved, shall be properly protected against damage and shall. not be disturbed or removed without approval of the Engineer. - 53 - Within the construction limits, as required, the removal of improvements such as paving, curbing, walks, .turf,. etc.,. ' shall be subject to acceptable replacement after completion of underground work, with all expense of removal and replacement being borne by the Contractor to the extent. , that separate compensation is•not specifically provided for in the Contract. Obstructions such as street signs, guard posts,. small ' culverts, and other items of prefabricated construction may be temporarily removed during construction, provided that essential service is maintained in a relocated setting as ' approved by the Engineer and that nonessential items are properly stored for the duration of construction. Upon completion of the underground work, all such items shall be ' replaced in their .proper setting at the sole expense of the Contractor. In the event of damage to any surface improvements, , either privately or publicly owned, in the absence of construction necessity, the Contractor will be required to replace or repair the damaged property to the satisfaction ' of the Engineer and without cost to the Owner. A4 Interference of Underground Structures , When any underground structure interferes with the planned placement of the pipeline or appurtenances to such ' an extent that alterations in the work are necessary to eliminate the conflict or avoid endangering effects cn either .the existing or proposed facilities, the Contractor shall immediately notify .the Engineer and the Owner of the ' affected structure. When any existing facilities are endangered by the Contractor's operations, the Contractor shall cease work at the site and take such precautions as ' may be necessary to protect the inplace structures until a decision is made as to how the conflict will be resolved. With t ifi , ou spec c authorization from the Engineer, no essential utility service shall be disrupted, nor shall any. change be made in either the existing structures or the planned installations to overcome the interference. Altera- ' tions in existing facilities will be allowed only to the extent that service will not be curtailed unavoidably and then only when the encroachment or relocation will satisfy , all applicable regulations and conditions. Wherever alterations are required as a result of , unforeseen underground interferences not due. to any fault or negligence of the Contractor, the Engineer will issue a written.. order covering any additional or extra work involved and specifying the revised basis of payment, if , I~ J - 54 - 0 any. Any alterations made strictly for the convenience of ' the Contractor shall be subject to prior approval and shall be at the Contractor's expense. ' No extra compensation will be allowed for delays caused by the interference of underground structures. ' A5 Removal of Surface Improvements. P,emoval of surface improvements in connection with ' trench excavation shall be limited to actual needs for installation of the pipeline and appurtenances, based on the allowable trench widths and any other controls imposed ' in connection with the work. Removal. operations shall be coordinated effecti ely with th v e excavation and installa- tion operations as will cause the least practical disrup- tion of traffic or inconvenience to the public. The debris ' resulting from removals shall become the property of the Contractor and shall be disposed of by the Contractor . Removed debris shall not be deposited at locations that ' will block access to fire hydrants, private driveways or , other essential service areas, nor obstruct surface drainage. Removal and final disposal of debris shall be ' accomplished as a .single operation wherever possible and, in any event, the debris shall be r d emove from the site before starting the excavating operations. ' Removal of concrete or bituminous structures shall be by methods of producing clean-cut breakage to prescored lines as will preserve the remaining structure without damage. ' Removal egNipment shall not be operated in a manner that will cause damage to the remaining structure or adjoining property. Vv'here not removed to an existing joint, concrete structures shall be sawed along the break lines to a ' minimum depth of one-third of the structure depth. Any reusable materials generated during the work, such ' as aggregate, sod, or topsoil, shall be segregated from other .waste materials and be stockpiled so as to maintain suitability and permit proper reuse. ' The use of drop weight equipment for breaking pavement will be allowed to the extent that the Contractor shall assume full responsibility for any damages caused thereby. ' The pavement breaking operations shall not be allowed to become a nuisance to the public or a source of damage to underground or adjacent structures. The Engineer reserves ' the right to order discontinuance of drop weight breaking operations at any time. - 55 - u A6 Temporary Service Measures , While any open excavations are maintained, the Contrac- tor shall have available a supply of steel plates suitable for temporary bridging of open trench sections where either ' vehicular or pedestrian traffic must be maintained. Use of the plates shall be as directed or approved by the Engineer and where installed they shall be secured against possible. ' displacement and be replaced with the permanent structure as soon as possible. B Excavation and Preparation of Trench ' B1 Operational Limitations and Requirements ' Excavating operations shall proceed only so far in advance of pipe laying as will satisfy the needs for coordination of vaork and permit advance verification of unobstructed line and grade as planned. Where interference ' with existing structures is possible or in any way indicated, and where necessary to establish elevation or direction for connections to inplace structures, the ' excavating shall be done at those locations in advance of the main operation so actual conditions will be exposed in sufficient time to make adjustments without resorting to ' extra work or unnecessary delay. All installations shall be accomplished by open trench , construction except for short tunnel sections approved by the Engineer and with the exception that boring and jacking or tunnel construction methods shall be employed where so specifically required by the Plans, Specifications, or , Special Provisions. Installation of pipe through tunnel excavations will be allowed only where the surface structure can be properly supported and the backfill ' restored to the satisfaction of the Engineer. The excavating operations shall be conducted so as to , carefully expose all inplace underground structures without .damage. Wherever the excavation extends under or approaches so close to an existing structure as to endanger it in-any way, precautions and protective measures shall be taken as , necessary to preserve the structure and provide temporary support. Hand methods of excavating shall be utilized to probe for and expose such critical or hazardous installa- ' tions as gas pipe and power or communication .cables. The Engineer shall be notified of any need for blasting ' to remove materials which cannot be broken up mechanically, and there shall be no blasting operations conducted until the Engineer's approval has been secured. Blasting will be allowed only when proper precautions are taken to protect ' - 56 - ' -life and property, and then shall be restricted as the Engineer directs. The Contractor shall assume full respon- sibility for any damages caused by blasting, regardless of the requirements for notification and approval. The ' Contractor shall secure any required permits for blasting and shall conduct blasting operations in conformance with all applicable state and local laws, regulations and ordinances. ' B2 Classification and Disposition of Materials Excavat d t e ma erials will be classified for payment only to the extent that the removal of materials classified by the Engineer as Rock vaill be paid for separately from other unclassified material ith s, e er as a separate Contract Item or as an Extra Work Item when no bid price is applicable. No other materials encountered in the excavations, with the ' exception of items classified for payment as structure removals, will be considered as Unclassified Excavation , and unless otherwise specified in the Plans, Specifi- ' cations, and Special Provisions, no additional compensation shall be provided for their removal. Unclassified materials shall include muck, rubble, wood debris, and boulder stone, masonry or concrete fragments less than one cubic yard in ' volume, together with other miscellaneous matter that can be removed effectively with power operated excavators without resorting to drilling and blasting. ' R k oc excavation shall be defined to include all hard solid rock in ledge formation, bedded deposits and unstratified masses; all natural conglomerate deposits so ' firmly cemented as to present all the characteristics of solid rock; and any boulder stone, masonry or concrete fragments di ' excee ng one cubic yard in volume. Materials such as shale, hard pan, soft or disinte rat d k g e roc which can be dislodged with a hand pick or d remove with a povaer operated excavator will not be classified as Rock Excava- ' tion. Excavated materials will be classified for reuse as being either Suitable or Unsuitable for backfill or other specified use, subject to selective controls. All suitable materials shall be reserved for backfill to the extent needed, and any surplus remaining shall be utilized for oth er construction on the project as may be specified or ordered b the E i y ng neer. To the extent practicable,. granular materials and topsoil shall b ' e segregated from other materials during the excavating and stockpiling operations so as to permit best use of the available material t s a the time of backfilling. Unless otherwise specified in th ' e Plans, Specifications, and Special Provisions, material handlin g as described above shall be 57 n 0 considered incidental with no additional compensation , provided therefor. All excavated materials reserved for backfill or other use on the project shall be stored at locations approved by , the Engineer that will cause a minimum of inconvenience to public travel, adjacent properties, and other special interests. The material shall not be . deposited so close to ' the edges of the excavations as wo uld create hazardous conditions, nor shall any material be placed so as to block the access to emergency services. All materials considered unsuitable by the Engineer, for any use on the project, , shall. be immediately removed from the project and be disposed of as arranged by the Contractor at no extra cost to the Contract. B3 Excavation Limitations and Requirements ' Trench excavating shall be to a depth that will permit preparation of the foundation as specified and installation of the pipeline and appurtenances at the prescribed line ' and grade, except where alterations are specifically authorized. Trench widths shall be sufficient to permit the pipe to be laid and joined properly and the backfill to be placed. and compacted as specified. Extra width shall be provided as necessary to permit convenient placement of sheeting and shoring and to accommodate placement of appurtenances. ' Excavations shall be extended below the bottom of structure as necessary to accommodate any required Granular ' Foundation material. When rock or unstable foundation materials are encountered at the established grade, additional materials shall be removed as specified or ordered by the Engineer to produce an acceptable founda- ' tion. Unless otherwise indicated or directed , rock shall be _ removed to an elevation at least six inches below the bottom surface of the pipe barrel and below the lowest ' projection of joint hubs. All excavations below grade shall be to a minimum. width to the outside pipe diameter plus .two feet. Rock shall be removed to such additional horizontal dimensions as will provide a minimum clearance of six inches on all sides of appurtenant structures such as valves, housings, access structures, etc. Where. no other grade controls are indicated or esta- blished for the pipeline, the excavating and foundation preparations shall be .such as to provide a minimum cover ' over the top of the pipe as specified. Trench widths shall allow for at least six inches of clearance on each side of the joint hubs. The maximum allowable width of the trench , 0 - 58 - at the top of pipe level shall be the outside diameter of the pipe plus two feet, subject to the considerations for alternate pipe loading set forth ..below. The width of the trench at the ground surface shall be held to a minimum to prevent unnecessary destruction of th f e sur ace structures. The maximum allowable trench width at the level of the top of pipe may be exceeded only by approval of the Engineer, after consideration of pipe strength and loading relationships. Any alternate proposals made by the Contrac- for shall be in writing, giving the pertinent soil weight data and proposed pipe strength alternate, at least seven days prior to the desired date of decision. Approval of alternate pipe designs shall be with the understanding that there will be no extra compensation allowed f or any increase in material or construction costs. i If the trench is excavated to a greater width than that authorized, the Engineer may direct the Contractor to provide a higher class of bedding and/or a higher strength pipe than that required by the Plans, Specifications, and Special Provisions in order to satisfy design requirements, without. additional compensation therefor. B4 Sheeting and Bracing Excavations All excavations shall be sheeted, shored, and braced as will meet all requirements of the applicable safety codes and regulations; comply .with any specific requirements of the Contract; and prevent disturbance or settlement of adjacent surfaces, foundations, structures, utilities,. and other properties. Any damage to the work under contract or to adjacent structures or property caused by settlement, water or earth pressures, slides, cave-ins, or other causes due to failure or lack of sheeting, shoring, or bracing or through negligence or fault of the Contractor in any manner, shall be repaired at the Contractor's expense and without delay. [nThere conditions warrant extreme care, the Plans, Specifications, and Special Provisions may require special precautions to protect life or property, or the Engineer may order the installation of sheet piling of the interlocking type or direct that other safety measures be taken as deemed necessary. Failure of the Engineer to order correction of improper or inadequate sheeting, shoring, or bracing shall not relieve the Contractor's responsibilities for protection of life, property, and the work. The Contractor shall assume full responsibility -for proper and adequate placement of sheeting, shoring, and - 59 - bracing, wherever and to such depths that soil stability may dictate the need for support to prevent displacement. Bracing shall be so arranged as to provide ample working space and so as not to place stress or strain on the inplace structures to any extent that may cause damage.. Sheeting, shoring and bracing materials shall be removed only when and in such manner as v,Till assure adequate protection of the inplace structures and prevent dinplace- merit of supported grounds. Sheeting and bracing shall be left in place only as required by the Plans, Specifica- tions, and Special Provisions or ordered by the .Engineer. Otherwise, sheeting and bracing may be removed as the backfilling reaches the level of respective support.. Wherever sheeting and bracing is left in place, the upper portions shall be cut and removed to an elevation of three feet or more below the established surface grade as the Engineer may direct. ~ All costs of furnishing, placing, and removing sheeting, shoring, and bracing materials, including the value of materials left in place as required by the Contract, shall be included in the prices bid for pipe installation and will not be compensated for separately. When any sheeting, shoring, or bracing materials are left in place by written order of the Engineer, in the absence of specific requirements of the Contract to do so, payment will be made for those materials as an Extra Work Item, including waste material resulting from upper cut-off requirements. B5 Preparation and Maintenance of Foundations Foundation preparations shall be conducted as necessary to produce a stable foundation and provide continuous and uniform pipe bearing between bell holes. The initial excavating or backfilling .operations shall produce a subgrade level slightly above finished grade as will permit hand shaping to finished grade by trimming of high spots and without the need for filling of low spots to grade. Final subgrade preparations shall be such as to produce a finished grade at the centerline of the pipe that is within 0.03 foot of a straight line between pipe joints and to provide bell hole excavation at each joint as will permit proper joining of pipe and fittings. I ti d n excava ons ma e below grade to remove rock or unstable materials, the backfilling to grade shall be made .with available suitable materials unless placement. of Granular Foundation or Bedding material is specified and provided for or is ordered by the Engineer as an Extra Work Item. Placement of the backfill shall be in relatively - 60 - uniform layers not exceeding 8 inches in loose thickness. Each layer of backfill shall be compacted thoroughly, by means of approved mechanical compaction equipment, as will produce uniform pipe support throughout the full pipe length and facilitate proper shaping of the pipe bed. Where the foundation soil is found to consist of materials that the Engineer considers to be so unstable as to preclude removal and replacement to a reascnable depth to achieve solid support, a suitable foundation shall be constructed as the Engineer directs in the absence of special requirements therefor in the Plans, Specifications, and Special Provisions. The Contractor maybe required to furnish and drive piling and construct concrete or timber bearing supports or other vacrk as may be provided for in an Extra Work order. ' Care shall be taken during final subgrade shaping to prevent any over-excavation. Should any low spots develop, they shall only be filled with approved material, which ' shall have optimum moisture content and be compacted thoroughly, without additional compensation provided to the Contractor. The finished subgrade shall be maintained free of water and shall not be disturbed during pipe lowering operations except as .necessary to remove pipe slings. The discharge of trench dewatering pumps shall be directed to natural drainage channels or storm water drains. Draining trench water into sanitary sewers or combined sewers will not be permitted. The Contractor shall install and operate a dewatering system of wells or points to maintain i e trenches f f p p ree o water wherever necessary or as directed by the engineer to meet the intent of these specifications. Unless otherwise specified in the Plans, Specifications, and Special Provisions, such work shall be considered incidental with no additional compensation provided therefore. ' All costs of excavating below grade and placing foundation or bedding aggregates as required shall be included in the bid prices for pipe items to the extent that the need for such work is indicated in the Contract provisions and the Proposal does not provide for payment therefor under separate Contract Items. Any excavation below grade and any foundation or bedding aggregates required by order of the Engineer in the absence of Contract. requirements therefor will be compensated for separately as Extra Work Items. If examination by the Engineer reveals that the need for placement of foundation aggregates was caused by the Contractor's manipulation of the soils in the presence of excessive moisture or lack of proper dewatering, the cost of the corrective measures shall be borne by the Contractor. 61 C Installation of Pipe and Fittings C1 Inspection and Handling Proper and adequate .implements, tools, and facilities satisfactory to the Engineer shall be provided and used by the Contractor for the safe and convenient prosecution of the work. During the process of unloading,-all pipe and accessories shall be inspected by the Contractor for damage. The Contractor shall notify the Engineer of all material found to have cracks, flaws or other defects. The Engineer shall inspect the damaged materials and have the right to reject any materials found to be unsatisfactory. The Contractor shall promptly remove all rejected material from the site. All materials shall be handled carefully, as will prevent damage to protective coatings, linings, and joint fillings; preclude contamination of interior areas; and avoid jolting contact, dropping, or dumping. All work and materials are subject to tests by the Owner at such frequency. as may be determined by the Engineer. Such tests shall be paid for by the Owner. tnihile suspended and before being lowered into laying position, each pipe section and appurtenant unit .shall be inspected by the Contractor to detect damage or unsound conditions that may need corrective action or be cause for rejection. The Contractor shall inform the Engineer of any defects discovered and. the Engineer will prescribe the required corrective actions or order rejection. Immediately before placement, the joint surfaces of each pipe section and fitting shall be inspected for the presence of foreign matter, coating blisters, rough edges or projections, and any imperfections so detected shall be corrected by cleaning, trimming, or repair as needed. C2 Pipe Laying Operations ' Trench excavation and bedding preparations shall proceed ahead of pipe placement as will permit proper laying and joining of the units at the prescribed grade and alignment without unnecessary deviation or hindrance. All foreign matter or dirt shall be removed from the inside of the pipe and fittings before they are lowered into position in the trench and they shall be kept clean by approved means during and after laying. The sewer materials shall be carefully lowered into laying position by the use of suitable restraining devices. Under no circumstances shall the pipe be dropped into the trench. ~. - 62 - ' At the' time of pipe placement, the bedding conditions shall be such as to provide uniform and continuous support for the pipe between bell holes. Bell holes shall be excavated as necessary to make the joint connections, but they shall be no larger than would be adequate to support the pipe throughout its length.. No pipe material shall be laid in water nar when the trench or bedding conditions are ~ otherwise unsuitable or improper. A1hen placement or handling precautions prove inadequate, in the Engineer's opinion, the.Contractor shall provide and 1 install suitable plugs or caps effectively closing the open ends of each pipe section before it is lovaered into laying position, and they shall remain so covered until removal is necessary for connection of an adjoining unit. Unless otherwise permitted by the Engineer, bell and spigot pipe shall be laid with the bell ends .facing upgrade and the laying shall start on the downgrade end and proceed upgrade.. As each length of bell and spigot pipe is placed in laying position, the spigot end shall be centered in the bell and the pipe forced home and brought to correct line and grade. The pipe .shall be secured in place with approved backfill material, which shall be thoroughly compacted by tamping around the pipe to a height of at least 12 inches above the top with hand operated mechanical tamping devices or by hand. The joint areas shall remain exposed and precautions shall be taken to prevent the soil from entering the joint space until th i , e jo nt seal is effected. Backfill in the bell area shall be left loose. Connection of pipe to existing lines or previously constructed manholes or catch basins shall be accomplished as shown in the Plans or as otherwise approved by the Engineer. Where necessary to make satisfactory closure or produce the required curvature, grade or alignment deflec- tions at joints shall not exceed that"which will assure L tight joints and comply with any limitations recommended by the pipe manufacturer. Entrance of foreign matter into pipeline openings shall be prevented at all times to the extent that suitable plugs or covering can be kept in place over the openings without interfering with the installation operations. Installation of PVC, ABS, and composite truss pipe shall conform to ASTM D-2321. C3 C onnection and Assembly of Joints All pipe and fitting joints shall fit tightly and be - 63 - fully closed. Spigot ends shall be marked as necessary to indicate the point of complete closure. All joints shall be ' soil tight, as the minimum requirement, and shall be watertight in all sanitary sewer pipe lines and in all storm sewer pipe lines installed within the limits of a paved street or highway traffic lanes. Where specified, the joints in certain assemblies, shall be made structurally integral by being completely encased in concrete to form a rigid watertight unit as indicated in the standard drawings. Where watertight joints are required, without concrete encasement, the joints shall be sealed as follows, subject to such other approved method as the Engineer may authorize as being an acceptable alternative: ... (1) Concrete pipe and fitting joints--compression type w rubber gasket seals conforming to the requirements-of ASTM C-443, ASTM C-361 or AASHTO M-198 for circular pipe, or as otherwise approved by the Engineer in the case of non-circular pipe sections. (2) ABS/PVC Truss pipe, ABS solid wall pipe and fittings- ' assembled gasket seal joints. (3) Smooth wall and corrugated wall PVC pipe and fittings- assembled push-on gasketed joints shall pass perfor- mance tests as listed in ASTM D-3212. Solvent welds shall not be permitted. (4) Vitrified clay pipe and fittings--factory fabricated compression seals or compression type couplings. (5) Corrugated steel pipe and fittings--sealed with approved type compression seals. Where waterti ht int g jo s are not required, joints in concrete pipe shall be made soil tight by filling with mortar as the Engineer directs. Pipe joints encased in concrete will not have to be sealed with gasket type seals, but shall be filled with mortar as directed. C4 B lkh u eading Open Pipe Ends All pipe and fitting ends left .open for future. connection shall be bulkheaded by approved methods prior to backfilling. Unless otherwise specified or approved, all openings of 24 inches in diameter or less shall be closed off with prefabricated plugs or caps and all openings , larger than 24 inches in diameter-shall be closed off with masonry bulkheads. - 64 - 1 Prefabricated plugs and caps shall be of the same material as the pipe material, or an approved. alternate material, and they shall be installed with watertight seal as required for the pipeline joints. Masonry bulkheads shall be constructed with clay or concrete brick to a v,Tall thickness of eight inches. Bulkheads installed for temporary service. during con- struction may be constructed with two-inch timber planking securely fastened together and adequately braced, as an alternate to the masonry construction. C5 Placement of Insulation Rigid insulation board shall be placed within the pipe encasement zone, 6 inches above the pipe.- Prior to ' placement of the insulation, encasement material shall be compacted until there is no further visual id ev ence of increased consolidation or the density of the compacted layer conforms to the density requirements specified in the Special Provisions, then leveled and lightly scarified to a depth of i inch. Encasement zone material placed below the insulation shall be free of rock or stone fragments ' measuring 1 -z inches or greater. Insulation boards shall be placed on the scarified material with the long dimension parallel to the centerline of the. pipe. Boards placed in a single layer -shall be overlapped at least 6 inches on all sides to eliminate continuous joints for the full depth of the insulation If . two or more layers of insulation boards are used each 1 , layer shall be placed to cover the joints of the layer immediately below with an overlap of at least 6 inches. The Contractor shall exercise precaution to insure that all joints between boards are tight during placement and backfilling with only extruded ends placed end to end or edge to edge. The first layer of material placed over the insulation shall be 6 inches in depth, free of rock or stone fragments .measuring 12 inches o t r grea er. The material shall be placed in such a manner that construction equipment does not operate directly on the insulation and shall be i compacted with equipment which exerts a contact pressure of less th an 80 psi. The first layer shall be compacted until there is no further visual evidence of inc d rease consolida- tion or .the density of the .compacted layer conforms to the density requirements specified in the Special Provisions. - 65 - D Appurtenance Installations Appurtenance items such. as aprons, trash guards, gates I and castings shall be installed where and as required by the Plans and in accordance with such standard detail drawings or supplementary requirements as may be specified. Casting assemblies installed on manhole or catch .basin structures shall be set in a full mortar .bed and be adjusted to the .specified elevation without the use of shims or blocking. Sewer aprons shall be subject to all applicable requirements for installation of pipe. All aprons and outfall end sections shall. have the last three sections tied. Two tie bolt fasteners shall be placed in each of the last three joints, one on each side of top center at the 60 degree point (from vertical). Tie bolt diameter shall be: i inch for 12" to and including 21" pipe; 5/8 inch for 24" to and including 36" pipe; 3/4 inch for 42" to and including , 54" .pipe; and 1" for 60" and larger pipe. The tie bolts shall be of a design approved by the Engineer. E Sewer Service Installations Main sewer service connections and building service sewer pipe shall be installed as provided for in the Contract and as may be directed by the Engineer. The sewer .service connections and pipe lines shall be .installed in conformance with all applicable requirements of the main sewer installation and as more specifically provided for herein. The Engineer, .with the assistance of the Contractor, shall keep accurate records of all service installations as to type., location, elevation, point of connection and termination, etc. This service record shall be maintained jointly by the Contractor and Engineer. on forms provided by the. Engineer. The service installations shall not be backfilled until all required information has been obtained and recorded. The main sewer service connection shall consist of installing a Branch Tee or Wye section in the main sewer line at designated locations, or of providing an insert type Saddle Tee in a pipe cutout where and as permitted or required in lieu of the built-in fitting. Orientation of service connection fitting shall be as shown in the standard drawings unless otherwise directed by the Engineer. - 66 - i ~I ~~ '.i Where the depth of cover over the main sewer invert is greater than 15 feet (or such other maximum as may be indicated), the service connection shall be extended upward by means of a Service Riser Section in accordance with the details shown in the standard drawings. Unless otherwise specified,- service pipe shall be installed at right angles to the main sewer and at a straight.. line grade to the property line. The standard and minimum grades shall be a uniform rise of one inch in four feet for sanitary service lines and one inch in eight feet for storm sewer service lines. These minimum grades may be reduced (by not more than one-half pitch) where the Engineer so approves in the case of restrictive elevation differences. Building service pipe lines shall generally be kept as deep as required to serve the building elevation and maintain the specified minimum pipe grades. Pipe bends shall be provided as necessary to bring the service lines to proper location and grade. Pipe bends shall not exceed 222 degrees without approval of the Engineer. Unless otherwise indicated, service pipe installation shall terminate at property line or as designated on the Plans, with a gasketed plug placed in the end, at which point the Contractor shall furnish and set a 4 x 4 inch wooden timber 6 feet to 8 feet in length embedded 4 feet below grade, or approved steel post to mark the exact end of pipe. The timber or post shall be set vertically, with the top 2 feet painted green. [nherever service line connections to the main sewer are permitted or required to be made by the open cut-out method in the absence of a built-in Tee or Wye fitting, the connection shall be made by using an approved type of Saddle Tee fitting. The pipe cut-out shall be made with an approved type coring machine or by other approved methods producing a uniform, smooth circular cut-out as required for proper fit. The cut-out discs shall be retrieved and shall not be allowed to remain within the main sewer pipe. The Saddle Tee shall be securely fastened to the main sewer pipe by means of epoxy resin or other approved adhesive. The entire connection fitting shall be encased in concrete to a minimum thickness of six inches and as may be shown in the standard drawings. Wherever service line connections to the main sewer are required to be made by means of built-in Branch Tee or Wye fittings, the Contractor shall, in the absence of such fitting, remove a section of the main sewer pipe and replace it with the required Branch Tee or Wye section connected by means of an approved sleeve coupling. - 67 - Sanitary .sewer service lines shall not be connected to a manhole at an elevation more than 24 inches above the crown of the outgoing sewer. Where the elevation difference is greater than 24 inches, the connection shall be made by means of an Outside Drop Connection in accordance with the , details shown in the standard drawings. All pipe and fitting openings at temporary terminal points •shall be fitted with suitable plugs or shall be bulkheaded as required for the main sewer pipe. F Manhole and Catch Basin Structures Manholes, catch basins, and other special access structures shall be constructed at designated locations as required by the Plans and in accordance with any .standard. detail .drawings or special. design requirements given therefor. Unless otherwise specified or approved, manholes and catch basins shall be constructed on a cast-in-place concrete base and the barrel riser sections, cone section , and top adjusting rings shall all be of precast concrete. All units shall be properly fitted and sealed to form a completely watertight structure. Barrel anti cone height shall be such as to permit placement of at least three and not more than six standard two-inch precast concrete adjusting rings immediately below the .casting assembly which shall be set in a mortar bed. Each adjusting ring shall also be set in mortar. Unless otherwise specified or approved, manholes and , catch basins shall have an inside barrel diameter at the bottom of 48 inches minimum and the inside diameter at the top of the cone section and of all adjusting rings shall be of the same size and shape. as the casting frame. Casting assemblies shall be as specified in the Plans. Catch basin grate elevation shall be adjusted as necessary to maintain the required dip below normal gutter grade. The .concrete cast-in-place base shall be poured on , undisturbed or firmly compacted foundation material which shall be trimmed to proper elevation. The bottom riser section shall be set in fresh concrete or mortar and all other riser section joints of the tongue and groove design ' shall be sealed with rubber gaskets. Vdherever special .designs so require or permit, and as otherwise may be approved by the Engineer, a precast concrete base may be used or the structure may be constructed with .solid sewer brick or block units or with cast-in-place concrete. Any combination of cast-in-place - 68 - concrete and brick or block mortar construction will be allowed and may be required where it is impossible to complete the construction with standard precast manhole sections. All annular wall space surrounding the inplace storm sewer pipes shall be completely filled with mortar or concrete, and the inside bottom of each manhole and. catch ' basin shall be shaped with fresh concrete to form free flow through invert troughs as directed. ' Sanitary sewer main lines shall not be connected to a manhole at an elevation more than 24 inches above the invert of the outgoing sewer. Where the difference is greater than 24 inches, the connections shall be made by ' means of an Outside Drop Connection in accordance with the detailed drawings in the Plans. The concrete base under the drop connection shall be monolithic with the manhole base. G Reconnecting Existing Facilities ' Disposition of abandoned facilities and reconnection of existing facilities shall be as provided for in the Plans , Specifications, and Special Provisions. H Sanitary Sewer Leakage Testing All sanitary sewer lines, including service connections, shall b e substantially watertight and shall be tested for excessive leakage upon completion and before connections are made to the service by others. Each test section of the sewer shall be subjected to exfiltration testing, either by hydrostatic or air test method as described below and at the Contractor's option. The requirements set forth for maximum leakage shall be met as a conditi f on or acceptance f o the sewer section represented by the test. ' If the ground water level is greater than three feet above the invert elevation of the upper manhole and the Engineer so approves, infiltration testing may be all owed in lieu of the allowable leakage exfiltration testing, in which case shall be the the same as would be allowed the Hydrostatic Test. for All .testing shall be performed by the Contractor without any direct compensation being made therefor, and the Contractor shall furnish all necessary equipment and 1 materials, including plugs and standpipes as required. H1 Air Test Method The sewer pipe section under test shall be clean at the - 69 - time of testing but the pipe may be wetted. Pneumatic balls shall be used to plug the pipe ends at manholes. Low pressure air shall be introduced into the plugged line until the internal air pressure reaches 4.0 psi greater than the average back pressure of any ground water pressure that may submerge the pipe. At least two minutes shall be allowed for the air temperature to stabilize .before readings are taken and the timing started. During this time the Contractor shall check all plugs with soap solution to detect plug leakage. If plugs are found to leak, air shall be bled off.,- the plugs shall be retightened, and the air shall be reintroduced into the line. The sewer section under test will be accepted as having passed the air leakage test if it does not lose air at a rate to cause the pressure to drop from 3.6 to 3.0 psi in less time than one-half minute per inch in diameter of the. pipe tested. H2 Hydrostatic Test Method After bulkheading the test section, the pipe shall be .subjected to a hydrostatic pressure produced by a head of water at a depth of three feet above the invert elevation of the sewer at the manhole of the test section. In areas where ground water exists, this head of water shall be three feet above the existing water table. The water head shall be maintained for a period of one hour during which time it will be presumed that full absorption of the pipe body has taken place, and thereafter for an extended period of one hour the water head shall be maintained as the test period.. During .the one hour test period, the measured water loss within the test section, including service stubs, shall not exceed the Maximum Allowable Loss (in Gallons Per Hour per 100 Feet of Pipe) given below for the applicable Main Sewer Diameter. Main Sewer Diameter (In Inches) 6 8 10 12 15 18 21 24 & Larger 1 1 1 1 1 1 1 1 Maximum. Allowable Loss* (In Gallons Per Hour Per 100 Feet) 0.5 0.6 0.8 1.0 1.2 1.4 1.7 1.9 aBased on 100 Gallons Per Day Per Pipe Diameter Inch Per Mile _70_ If measurements indicate exfiltration within a test ' section is not greater than the allowable maximum, the section will be accepted as passing the test. H3 Test Failure and Remedy In the event of test failure on any test section, testing shall be continued until all leakage has been ' detected. and corrected to meet the requirements. All repair work shall be subject to approval of the Engineer. .Introduction of sealant substances by means of the test ' water will not be permitted. Unsatisfactory repairs or test results. may result in an ' order to remove and replace pipe as the. Engineer considers necessary for test conformance All i . repa r and replacement work shall be at the Contractor's expense. t I Pi peline Backfilling Operations All pipeline excavations shall be backfilled to restore pre-existing conditions as the minimum requirement and , fulfill all supplementary requirements indicated in the Plans and Specifications, and Special Provisions. The ' backfilling operations shall be started as soon as conditions will permit on each section of pipeline so as , to provide continuity in subsequent operations and restore normal public service as soon as practicable on a section-by-section basis All ti . opera ons shall be pursued diligently, with. proper and adequate equipment, as will assure acceptable results. ' Th b e ackfilling shall be accomplished with the use of Suitable N,aterials selected from the excavated materials to the extent available and practical. Should the materials ' available within the trench section be unsuitable or insufficient, without loading and hauling or the employment of unreasonable measures, the required additional materials shall be furnished from outsid e sources as an Extra Work item in the absence of any Special Frovisions requirements. Suitable Material shall be defined as a mineral soil free of foreign materials (rubbish, debris, etc.) frozen , clumps, oversize stone, rock, concrete or bituminous chunks, and other unsuitable materials, that may damage the ' pipe installation, prevent thorough compaction, or increase the risks of after settlement unnecessarily. Material selection shall be such as to make the best and fullest 1 utilization of what is available, taking into consideration particular needs of different backfill zones. Material .containing stone, rock, or chunks of any sart shall only be .utilized where and to the extent there will be no detrimental effects. - 71 - Within the pipe bedding and encasement zones described ' as that portion of the trench which is below an elevation one foot above the top of the pipe, the materials placed shall be limited in particle size to 12 inches maximum in the case of pipe of 12 inches in diameter or less, and to 2 inches maximum in the case of larger pipe. Above these zones, the placement of material containing stones, boulders, chunks, etc. greater than 8 inches in any ' dimension shall not be allowed. Compaction of materials placed within the pipe bedding and encasement zones shall be accomplished with portable or ' hand equipment methods, so as to achieve thorough consoli- dation under and around the pipe and avoid damage to the pipe. Above the cover zone material, the use of heavy roller type compaction equipment shall be limited to safe pipe loading. Backfill materials shall be carefully placed in uniform. loose thickness layers of 8 inches spread over the full width and length of the trench section to provide simultaneous support on both sides of the pipeline. Granular backfill may be placed in 12 inch layers above an elevation one foot above the top of the pipe, and with the provision that, by authority-and at the discretion of the ' Engineer in consideration of the demonstrated capability of special type vibrating compactors, the stated maximums may be increased. ' Each layer of backfill material shall be compacted effectively, by approved mechanical or hand methods, until there is no further visual evidence of increased consoli- , dation or the density of the compacted layer conforms to the density requirements specified in the. Special Provi- sions. Compaction of the inplace layer shall be completed. acceptably before placing material for a succeeding layer thereon. The manner of placement, compaction .equipment and procedure effectiveness shall be subject to approval of the Engineer. All surplus waste materials remaining after completion of the backfilling operations shall be disposed of in an , acceptable manner within 24 hours after completing the backfill work on each particular pipeline section. Disposal at any location within the project limits shall be as , specified, or as approved by the Engineer; otherwise, disposal shall be accomplished outside the project limits at the Contractor's discretion. The backfilling and surplus or waste disposal operations shall be a part of the work required under the pipeline installation items, not as work that may be delayed until final cleanup. - 72 - , 1 Until expiration of the guarantee period, the Contractor shall assume full responsibility and expense for all backfill settlement and shall refill and restore the work as directed to maintain an acceptable surface condition, ' regardless of location. All additional materials required shall be furnished without additional cost to the Owner. ' J Restoration of Surface Improvements Wherever any surface improvements such as pavement, curbing, pedestrian- walks, fencing, or turfing have been removed, damaged or otherwise disturbed by the Contractor's operations, they will be repaired or replaced to the Engineer's satisfaction, as will .restore the improvement in ' kind and structure to the preexisting condition. Each item of restoration work shall be done as soon as practicable after completion of installation and backfilling operations on each section of pipeline. In the absence of specific payment provisions, as separate Contract Items, the restoration work shall be compensated for as part of the work re ir d d th qu e un er ose Contract Items v.Thich necessitated the destruction and replacement or repair, and there will be no separate ' payment therefor. If separate pay items are provided for restoration work, only that portion of the repair or reconstruction which was necessitated by the Contract work will be measured for payment.-Any improvements removed or ' damaged unnecessarily or undermined shall be replaced or repaired at .the Contractor's expense. Jl Turf Restoration ' Turf restoration shall be accomplished by sod placement except where seedin is ifi g spec cally allowed or required. Topsoil shall be placed to a minimum depth of four inches under. all sodding and in all areas seeded. The topsoil material used shall be light friable loam contain- ing a liberal amount of humus, and. shall be free of heavy clay, course sand, stones, plants, roots, sticks and other foreign matter. Topsoil meeting these requirements shall be selected from the excavated materials to the extent available and needed. All turf establishment work shall be done in subst antral compliance with the provisions of MnDOT Specification 2575. Seed shall be Mixture No. 5 of Mr1DOT Specification 3876, unless otherwise directed or approved. t - 73 - J2 Pavement Restoration ' The inplace pavement structure (including. base aggre- gates) shall be restored in kind and depth as previously existed, using base aggregates salvaged from the excavated materials to the extent available and needed, and with new materials being provided for reconstruction of the concrete or bituminous surface courses. ' If, through no fault of the Contractor in failing to reserve sufficient aggregate materials from the excava- tions, there should be insufficient ouantity of suitable aggregate to reconstruct the pavement base .courses, the additional materials required will be furnished by the Owner at its expense, or the Contractor will be ordered to ' furnish the additional materials from outside sources as an Extra Work item in the absence of an appropriate Contract . item therefor. Placement of any additional aggregate materials delivered to the site by the Owner or of any , additional materials furnished by the Contractor, shall be an incidental expense, as will also be the disposal of any- excess materials resulting therefrom,. unless special ' . payment provisions are otherwise agreed upon. Reconstruction of aggregate base. courses .and concrete or , bituminous surface courses shall be in substantial compli- ance with all applicable MnDOT Specifications pertaining to the item being restored. The materials used shall be ' comparable to those used in the inplace structure, and the workmanship and finished quality shall be equal to that of new construction to the fullest extent obtainable in consideration of operational restrictions. ' Existing concrete and bituminous surfaces at the trench wall shall be sawed or cut with a cutting wheel to form a , neat edge in a straight line before surfaces are to be restored. Sawing or cutting may be accomplished as a part. of the removal or prior to restoration at the option of the Contractor. However,. all surface edges will be inspected prior to restoration. J3 o , Rest ration of Miscellaneous Items Wherever any curbing,. curb and gutter sections, pedes- trian walks, fencing, driveway surfacing, or other improve- ments are removed or in any way damaged, or undermined, they shall be restored to original condition by repair or replacement as the Engineer considers necessary. Replace- ment of old materials will be acceptable only to the extent that existing quality can be fully achieved, such as in the case of fencing. Otherwise new materials shall be provided: , - 74 - 1 ' and placed as the Engineer directs. Vdorkmanship and finished quality shall be equal to that of new construc- tion, where new materials are used, to the extent obtainable in consideration of operational restrictions. ' A proper foundation shall be prepared before reconstruc- ting concrete or bituminous improvements. Unless otherwise directed, granular material shall be placed to a depth of at least four inches under all concrete and bituminous items. No direct compensation will be made for furnishing and placing this material even though such course was not ' part of the original construction. ' K Maintenance and Final Cleanup All subgrade surfaces shall be maintained acceptably 1 until the start of surfacing construction or restoration work, and until the work has been finally accepted. Additional materials shall be provided and placed as needed to compensate for trench .settlement and to serve as ' temporary construction pending completion of the .final surface improvements. ' Final disposal of .debris, waste materials, and other remains or consequences. of construction, shall be accom- plished intermittently as new construction items are completed and shall not be left to await final completion ' of all work. Cleanup operations shall be considered as being a part of the work covered under the Contract items involved and only that work which cannot be accomplished at ' any early time shall be considered as final cleanup work not attributable to a specific Contract Item. ' If disposal operations and other cleanup work are not conducted properly as the construction progresses, the Engineer may withhold partial payments until such .work is satisfactorily pursued, or he may deduct the estimated cost ' of its performance from the partial estimate value. Maintenance of sodded and seeded areas shall include ' adequate watering for plant growth and the replacement of any dead or damaged sod as may be required for acceptance of the work. 1 L Deflection Test Deflection tests shall be performed on all plastic 1 gravity sewer pipes. The test shall be conducted after the sewer trench has been backfilled to the desired finished grade and has been in place for 30 days. - 75 - The deflection test shall be performed by pulling a rigid ball or pointed mandrel through .the pipe without the aid of mechanical pulling devices. The ball or mandrel , shall have a minimum diameter equal to 95% of the actual inside diameter of -the pipe. The maximum allowable deflection shall not exceed five percent of the pipe's , internal diameter. The time of~the test, method of testing, and the equipment to be used for the test shall be subject to the approval of the Engineer. ' All testing shall be performed by the Contractor at his expense without any direct compensation being made there- for, and he shall furnish all necessary equipment and ' materials required. , L1 Test Failure and Remed Y In the event of test failure on any test section, the section shall be replaced, with all repair work subject to ' approval of the Engineer. The replaced section shall be retested for leakage and deflection in conformance with the. specifications contained herein. All repairs, replacement, , -and retesting shall be at the Contractor's expense. M Televising Sewer line televising may be required by the Engineer, at the cost of the Contractor, if visual inspection, leakage testing, or deflection testing, indicate the sewer , has not been constructed in accordance with these specifi- cations and the requirements of the Plans, Specifications and Special Provisions. , 2621.4 I~iETHOD OF MEASUREMENT All items will be measured separately according to design ' designation as indicated in the Pay Item name. and as may be detailed and defined in the Plans, Specifications, or Special , Provisions. Pipe will generally be designated by size (inside diameter or span), strength class, kind or type, and laying condition.. Complete-in-place items shall include all component parts thereof as described or required to complete the unit, but ' excluding any excesses covered by separate Pay Items. Linear. measurement of piping will include the running length of any special fittings (tees, wyes, elbows, gates, etc.) installed within the line of measure between specified terminal points. A Sewer Pipe ' Sewer pipe of each design designation will be measured C - 76 - ' by length in linear feet along the line of pipe. Terminal points of measurement will be the pipe end at free outlets; the point of connection with inplace pipe;-the center of ' manholes or catch basins; the point of centerline intersec- tions at branch fittings; or the point of juncture with .other appurtenances or units as defined. Separation of quantities according to "depth zone classification", when so designated in the Pay Item, will ' be determined by depth of pipe invert below the ground surface profile. ' B Manholes Manholes of each design designation will be measured by ' number of each constructed complete-in-place, including the base and castings as required, but excluding any excess depth greater than 8.0 feet measured from top of manhole cover to invert elevation of lowest pipe. ' Excess manhole depth of each design designation will be measured by the linear foot difference in depth between the ' 8.0 feet allowed as standard and the actual increased depth as constructed. ~i 1 C Catch Basins Catch basins of each design designation will be measured by number of each constructed complete-in-place, including the base and castings as required, but excluding any excess depth greater than 5.0 feet measured from top of grate (low point) to invert elevation of lowest outlet pipe. Excess catch basin depth of each design designation will be measured by the linear foot difference in depth between the 5.0 feet allowed as standard and the actual increased depth as constructed. D Outside Drop Connection Outside drop connections of each design will be measured by number of each constructed complete-in-place, including granular encasement, fittings, and any special piping details as required, including two holes into existing manholes for the drop connection, but excluding any excess vertical drop greater than 2.0 feet measured between invert of high pipe inlet and invert of low pipe outlet. Excess drop connection depth will be measured by the linear foot difference in vertical drop between the 2.0 feet allowed as standard and the actual increased vertical drop as constructed. - 77 - E Service Connection Service Connections of each design will be measured by t number of each constructed complete-in-place as specified. F Service Pipe ' Service pipe of each design will be measured .separately by length in linear feet, horizontally along the line of , installation, between the service end and the point of juncture with the main pipe connection fitting. G Special Pipe Fittings Special pipe fittings (wyes, tees, bends, etc.) of each , design designation will be measured by number of each installed complete-in-place as specified, but excluding any such fittings required to be installed as a component part ' of any other Work Unit. H Appurtenant Items ' Appurtenant ,items such as aprons, trash guards, gates and other prefabricated units or assemblies as identified by Pay Item name will be measured separately by number of each installed complete-in-place as specified. I Granular Materials Granular materials furnished and placed as special foundation, bedding, encasement, or backfill construction '. will be measured by weight or volume of material furnished by the Contractor from outside sources and placed within. the limits defined. Unless otherwise specified, volume will. be determined by vehicular measure (loose volume) at the point of delivery. Measurements will not include any materials required to be placed as a component part of any , other Work Unit. J Piling , Piling shall be measured according to the Provisions of MnDOT Specification 2452. J1 Pile Bents Pile bents shall be measured as a unit and shall include ' all materials and labor required, except the pile. - 78 - K .Insulation Rigid board insulation shall be measured on a square foot basis installed. to the .specified thickness noted on the Plans, Specifications, and Special Provisions and shall ' include all materials and labor required for placement. ' 2621.5 BASIS OF PAYMENT Payment for sewer. pipe and service pipe items at the Contract prices per linear foot of pipe of each design shall be ' compensation in full for all costs of providing a complete-in- place pipeline, including excavation, foundation preparation, backfilling, leakage testing, restoration of surface improve- , ments, disposal of surplus or waste materials, final cleanup, and such other work as may be specified, but excluding the construction of other structures or special sections and the placement of special fittings, appurtenances or materials specifically designated for payment under other Contract Items. Payment for manhole, catch basin, outside drop connection, ' service connection, and other structures as specified, at the Contract prices per .structure, shall be compensation in full for all costs of constructing each unit complete-in-place as ' specified, including all required castings, special fittings, -base or encasement, and appurtenant materials as specified for the complete structure or section, but excluding such additional work as may be designated for payment under other Contract ' Items. t~There the specified standard manhole, catch basin, or outside ' .drop connection depths are exceeded, the excess depth of each design will be paid for separately as linear footage items and payment at the Contract prices therefor shall be compensation in full for all costs of providing the extra depth. Special pipe fittings such a s wyes, tees and bends will be paid for as separate Contract Items to the extent they are ' required. to be installed in the sewer pipe and service pipe lines and not as a component part of a complete-in-place structure (outside drop connections, service connections, etc.) ' Hppurtenant items such as aprons, trash guards, draina e gates, and other prefabricated units or assemblies and speciags as designated will be paid for as separate Contract Items to the- ' extent they are not included as a component part of. any complete-in-place structure. ' Granular materials furnished for foundation, beddin or backfill placement as specified in connection with ~p pe eor structure items will only be paid for as separate Contract Items ' to the extent that the Proposal contains specific Pay Items ' - 79 -