2001-02-14 Feasibility Report Trunk Utilities and Lift Stationcopy
t
Feasibility Report
2001 Towne Lakes Trunk Utilities and
Lift Station
Albertville, Minnesota
SEH No. A-ALBEV 0009.01
February 14, 2001
=SEN
SHORT ELLIOTT HENDRICKSON INC
Multidisciplined.
Single Source.
=SEN
February 14, 2001
Honorable Mayor & City Council
c/o Linda Goeb, City Administrator
City of Albertville
5975 Main Avenue
P.O. Box 9
Albertville, MN 55301-0009
RE: Albertville, Minnesota
2001 Towne Lakes Trunk Utilities and
Lift Station
SEH No. A-ALBEV 0009.01
Dear Mayor and Members of the City Council:
Enclosed is the Feasibility Report for the above referenced improvement. It includes
recommendations with probable costs.
Please contact me if you have any questions.
Sincerely,
~~
Wayne C.B. Stark, P.E.
Project Engineer
tjw/djg
\\sehsc3\sc:cv\a(bev\0009.01 \reports\report.doc
1200 25th Avenue South, P.O. Box 1717, St. Cloud, MN 56302-1717 320.229.4300 320.229.4301 FAX
architecture engineering environmental transportation
Short Elliott Hendrickson Inc. Offices located throughout the Upper Midwest Equal Opportunity Employer
We help you plan, design, and achieve.
2001 Towne Lakes Trunk Utilities and Lift Station
Feasibility Report
Albertville, Minnesota
SEH No. A-ALBEV 0009.01
February 14, 2001
I hereby certify that this report was prepared by me or under my direct
supervision, and that I am a duly Licensed Professional Engineer under the
laws of the State of Minnesota.
!il/
Wayne .B. Stark,
Date: 02/14/01
Reviewed by:
Peter J
Short Elliott Hendrickson Inc.
1200 25th Avenue South
P.O. Box 1717
St. Cloud, MN 56302-1717
320.229.4300
P.E.
Reg. No
26093
Date
2001 Towne Lakes Trunk Utilities and Lift Station A-ALBEV 0009.01
Albertville, Minnesota
Table of Contents (Continued)
Table of Contents
Letter of Transmittal
Certification Page
Table of Contents
Page
'J
II
t
1.0 Introduction .................................................................................................1
2.0 Existing Conditions ..................................................................................... i
3.0 Flows ............................................................................................................ 2
4.0 Proposed Improvements ............................................................................2
4.1 Lift Station ............................................................................................. 2
4.2 Water Main ............................................................................................3
5.0 Cost and. Recommendations ......................................................................3
List of Tables
1
1
Table 1 Land Areas and Projected Flows ................................................. 2
Table 2 Cost Summary ............................................................................. 3
List of Exhibits
Exhibit 1 Service Area
Exhibit 2 Utility Extension
List of Appendices
Appendix A .Opinion of Probable Cost
2001 Town Lakes Trunk Utilities and Lift Station A-ALBEV 0009.01
Albertville, Minnesota Page i
February 14, 2001
Feasibility Report
2001 Towne Lakes Trunk Utilities and Lift Station
Prepared for City of Albertville
1
~.
1
1.0 Introduction
The Towne Lakes development is in the planning stages and is located
north of I-94 on the Balfany property between Mud and School Lakes.
Currently, most of the area north of I-94 that is within the city limits
does not have access to city sanitary and water services. The City
Council authorized this report on January 16, 2001 to determine the
feasibility of constructing a lift station and extending trunk water main
to serve this area.
2.0 Existing Conditions
In 1999, as part of the 62nd Street project, sanitary sewer and water
mains were extended approximately 965 feet to the west of the
intersection of 62nd Street and McIver Avenue. From this intersection
to the west, the existing street is a 24-foot wide gravel road. The
proposed 86 acre Towne Lakes development concept plan indicates
114 single family residential lots. The future land use for the
surrounding area will also be single family residential, which totals
103 acres.
Immediately to the west of this development is a 1,000 foot corridor of
land with County State Aid Highway (CSAH} 19 at the center. This
land is zoned for commercial uses and contains 123 acres. Further to
the west, the land is zoned for industrial use and is 200 acres in size
(see Exhibit 1).
1 SEH is a registered trademark of Short Elliott Hendrickson Inc.
2001 Towne Lakes Trunk Utilities and Lift Station A-ALBEV 0009.01
Albertville, Minnesota Page 1
1
1
'J
Current development in the area includes the Outlet Mall and several
small industries. The Outlet Mall has a private lift station to serve it,
and there is an existing gravity sanitary main in CSAH 19 to serve
some of the commercial lots on the east side of CSAH 19. Table 1
shows a breakdown of the service area and the corresponding
projected flows.
Table 1
Land Areas and Projected Flows
Land Use Acres GPD Peak GPM
Low Density Residential 189 94,500 217
Commercial 123 123,000 282
Industrial 200 200,000 458
Total 512 417,500 957
3.0 Flows
Design standards are used to calculate future flows from the
contributing areas based on the proposed land use. One hundred
gallons per person per day is used for the low density residential areas,
1,000 gallons per acre per day (GPAD) is used for commercial and
industrial areas. When sizing the lift station, the peak hourly flow in
gallons per minute (GPM) is used. This is calculated using the
projected hourly flow in gallons per day (GPD) and a peaking factor of
3.3. For the Towne Lakes lift station, the peak hourly flow is 957
GPM.
With the proposed sanitary depths, a sanitary main lining up with the
Outlet Mall entrance could be installed along the east side of CSAH 19
to the south. The existing sanitary main from the Outlet Mall would be
connected into this new sanitary main, making the existing private lift
station for the Outlet Mall obsolete.
4.0 Proposed Improvements
4.1 Lift Station
i
~J
i.l
The proposed lift station would consist of a concrete wetwell, valve
manhole, and control panel. The wetwell would be 9 feet in diameter,
35.5 feet deep, and have a 12-inch PVC sanitary main draining into it.
The two pumps within the wetwell would be 15 horsepower with a
capacity of 775 GPM each. The valve manhole would be a 9-foot
diameter concrete structure, housing two 10-inch check valves, and
two 10-inch gate valves. Two pumps with capacities of 1000 GPM and
2001 Towne Lakes Trunk Utilities and Lift Station
Albertville, Minnesota
A-ALBEV 0009.01
Page 2
20 horsepower could replace the smaller pumps when the future flows
exceed 775 GPM. The wetwell and valve manholes are large enough
to contain a third pump if the projected flows or the service area
increases. The associated piping and controls for the third pump would
be installed with this system. The forcemain would be 10 inches in
' diameter, about 3,500 feet in length, and connected into an existing
sanitary manhole located in 62nd Street. This sanitary manhole has an
18-inch gravity sanitary main flowing out of it to the north.
4.2 Water Main
f'
1
The trunk water main would be 12 inches in diameter and connect to
the existing water main in 62nd Street. It would be extended north
between the lakes to a future connection for the Towne Lakes
development. Hydrants would be spaced along this trunk water main
about every 400 feet for maintenance and fire protection purposes (see
Exhibit 2 for layout of the trunk sanitary sewer and water main
improvements).
5.0 Cost and Recommendations
The estimated cost of this project is summarized in Table 2. Costs are
based on 2000 construction prices (see Appendix A for a detailed cost
estimate). Trunk sanitary sewer and water main fees would be used to
fund this project. The trunk fees collected from the 86 acre Towne
Lakes Development alone would be $216,000 and trunk fees from the
rest of the developable service area are estimated to be an additional
$596,400. This project is necessary to provide sewer and water to the
proposed service area, feasible from an engineering standpoint, and
cost effective.
Table 2
Cost Summary
Construction $245,510
Contingency $24,551
Engineering $41,737
Financial $7,365
Legal and Administrative $24,551
Total Cost $343,714
2001 Towne Lakes Trunk Utilities and Lift Station A-ALBEV 0009.01
Albertville, Minnesota Page 3
f List of Exhibits
' Exhibit 1 -Service Area
Exhibit 2 - Utility Extension
r-,
~I
~ ~ ~~~~~
~o
w
~~
ao
....,~ . ............~., _,
`~ ~
~
'~ J~
- W
W ~\
N
_ . ~ ~
~
~ i m
J O
3
~
~
:
Q
. ' r.
., #. :
~,
i c :
.., ..
F
Q
W }
a
_ s
.
W
-
,_
,
.. Z
~
A
... ~ -
oc
~~
i
,
W
. __..
- ..
,,
Z
_.
...... ~.. ,..,. .,..w._
F
i
-"
~ ~. ;
r
8
•
............
j~ {~ ,
... 0 ,'
i
~
~
~ ~
N ~, s
Zq
b
J~ as .H ~ ~ ......
,
~
.w
4'i'~ 1 _
', i
.
,
': _ _
~.~. ~
.~~~
,~ ~
~ .\
.. ,_.r.. ..,.....„,,..
~ ,.
,' '~.
~ ,,,. ~ ~
~-
. . ~:
i •. i
0
t
..1
Z N
r~,
,.. _ _
o"
., ~ J
~~ ~~
F~ ":
u6p•t6;6001°\P~~\t0'6000\^a91o\~M 3lld H3S Wd 8Z~9Z~t0 l0/Sl/ZO
+~ ~ r ~ ~ ~ ~ ~r r~ ~ ~ rir ~ ~ r ~ r ~
t
M...
,.
~'
,`
N
o zso soo
_ _ ........ I
t
i
~.`~_.
`:::~ ~ ~
_ ,.. ,.
~~L`IFT STATION '
_..~.~
~,
N
O+
m
O
O
a
O
V
O
m
O
O
O
N
W
J
2
N
a
0
0
FILE N0. TOWNE LAKES
AAL BE V0009.01 EXHIBIT
DATE: UTILITY EXTENSION
02/06/01 ALBERTVILLE, MINNESOTA No.2
1
Appendix A
Opinion of Probable Cost
2001 Towne Lakes Trunk Utilities and Lift Station
Albertville, MN
SEH NO. A-ALBEV 0009.01
OPINION OF PROBABLE COST
02/14/01
ITEM UNIT OF TOTAL
NO. ITEM DESCRIPTION MEASUREMENT QUANTITY UNIT PRICE TOTAL
GENERAL
1 MOBILIZATION
2 RESTORATION
SANITARY SEWER
3 12" PVC SANITARY PIPE
4 8" PVC SANITARY PIPE
5 10" PVC FORCEMAIN
6 SANITARY MANHOLE
7 CONNECT TO EXISTING SANITARY
8 LIFT STATION
LUMP SUM 1.00 $12,000.00 $12,000.00
ACRE 2.00 $2,000.00 $4,000.00
SUBTOTAL $16,000.00
LIN FT 70.00 $20.00 $1,400.00
LIN FT 20.00 $18.00 $360.00
LIN FT 3,500.00 $18.00 $63,000.00
EACH 1.00 $1,500.00 $1,500.00
EACH 1.00 $400.00 $400.00
LUMP SUM 1.00 $100,000.00 $100,000.00
SUBTOTAL $166,660.00
WATER MAIN
9 12" C900 WATER MAIN LIN FT 1,840.00 $22.00 $40,480.00
10 8" C900 WATER MAIN LIN FT 115.00 $18.00 $2,070.00
11 6" C900 WATER MAIN LIN FT 100.00 $14.00 $1,400.00
12 12" GATE VALVE EACH 5.00 $1,000.00 $5,000.00
13 6" GATE VALVE EACH 5.00 $600.00 $3,000.00
14 HYDRANT EACH 5.00 $1,500.00 $7,500.00
15 CONNECT TO EXISTING WATER MAIN EACH 1.00 $400.00 $400.00
16 FITTINGS POUND 1,200.00 $2.50 $3,000.00
SUBTOTAL $62,850.00
CONSTRUCTION $245,510.00
CONTINGENCY $24,551.00
ENGINEERING $41,736.70
FISCAL $7,365.30
LEGAL & ADMIN $24,551.00
TOTAL $343,714.00
W:\ALBEV\0009\REPORTS\estimate.xls 1 2/15/01