2006-4-19 A Test Pit Report �J
�
SEH TRANSMITTAL
To: Larry Kruse Date: April 19, 2006
City Administrator
City of Albertville SEH File No.: A-ALBEV0409.00
P.O. Box 9 Client No.:
Albertville, MN 55301
Re: Albertville,Minnesota
We are:
� Enclosing ❑ Sending under separate cover ❑ Sending as requested
One copy of the test pit report prepared by Braun Intertech for the Heuring property on the north side of ',
51 S`Street.
For your:
� Information/Records ❑ Review and comment ❑ Approval
❑ Action ❑ Distribution ❑ Revision and resubmittal
Remarks:
Please call me at 651.490.2147 if you have questions.
By: ��EZ.`1Globerg
c:
documen[3 I�04 �
Short Elliott Hendrickson Inc.,3535 Vadnais Center Drive,St. Paul, MN 55110-5196
SEH is an equal opportunity employer � www.sehinc.com � 651.490 2000 I 800 325.2055 � 651.490.2150 tax
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A Test Pit Report
Proposed Development
Northwest of Kyler Avenue and Settlers Path
Prairie Run Addition
Albertville, Minnesota
Prepared for '�
Fehn Gravel and Excavating
Professional Certification
I hereby certify that this plan, specification or report was
' prepared by me or under my direct supervision and that I am
a duly Licensed Professional Engineer under the laws of the I
State of Minnesota. I
� I
�
enry V 1 0,PE
Associate- Senior Engineer
License Number: 21140
December 17,2004
p I� � I� I� �l C,
DEC 2 0 2004
Project AL-04-06183 —
���)�T. EI_I a���`C, �fNO�ICI�Saf�
Braun Intertec Corporation ____ _������f���s.���,�t� Ms�r��
� •
B RAU N Braun Intertec Corporation Phone: 952.995.2000
I NTE RTEC 11001 Hampshire Avenue S Fax: 952.995.2020
Minneapolis, MN 55438 Web: braunintertec.com
December 17, 2004 Project AL-04-06183
Mr. Gary Fehn
Fehn Gravel and Excavating
Box 256
Albertville, MN 55301
Dear Mr. Fehn:
Re: Test Pit Observations for the Proposed Development,Northwest of Kyler Avenue and Settlers
Path, Prairie Run Addition,Albertville, Minnesota
We have completed the test pit observations for the above proposed development. The purpose of the
test pits was to assist in evaluating subsurface soil and conditions with regard to site grading for the
proposed development.
Available Information '�
Test Pits 1 through 4 were taken at the approximate locations shown on the attached sketch and �I
completed using a backhoe supplied by Fehn Gravel and Excavating. '
Soils Encountered I,
Four test pits were excavated at the site on October 25, 2004. The test pits generally encountered ,
approximately 1 1/2 feet of clayey topsoil overlying clay glacial till to the termination depths of the test I
pifs. The clay glacial till soils consist mainly of sandy lean clay with layers of lean clay, clayey sand and , �
lenses of poorly graded sand. Some of the clay soils nearer the surface were judged to be soft,however, I
the glacial till clays appeared to be medium to stiff at depth. j
Site Grading II
The topsoil and soft clays are judged unsuitable for fill and building support. Table 1 summarizes the ',
depths of topsoil and soft clay and provides recommended excavation depths at the test pit locations. !
The recommended excavation depths are based on lightly loaded on�to two-story buildings that may �'
have basements or be slab-on-grade structures. It should be noted that the test pits were performed prior
to any grading activities and that fill may have been placed to achieve final grades.
Test Pit Topsoil Thickness Soft Clay Thickness Recommended Excavation Depth
Number feet) feet feet
TP-1 1 1/2 6 7 1/2
TP-2 1 1/2 2 1/2 4
TP-3 1 1/2 4 1/2 6
TP-4 1 1/2 5 6 1/2
Providing engineering and environmental solutions since 1957
; , � �
: Fehn Gravel and Excavating
Project AL-04-06183
December 17, 2004
Page 2
The excavation to remove poor soils should be extended laterally at least 1 foot for each foot of fill I
required below footings (l:l oversizing). 'I
In pavement areas where more than 3 feet of structural fill was required to attain grade, the soil �I
correction work was limited to removing the surficial vegetation. The topsoil and soft clays were 1eft in I
place and fill placed over these soils. If future buildings are located in this area, additional soil ',
correction work may be required under the future buildings. �i
The excavations should then be backfilled where needed with properly compacted fill. The fill needs to �,I
be compacted to a minimum of 9� percent of its Standard Proctor density. Where more than 10 feet of
fill is needed below foundations,the minimum compaction should be increased to 98 percent. More than ',
10 feet of fill may also need a construction delay monitored by settlement plates. This could be II
evaluated on a case-by-case basis. ;
The remaining natural clays or compacted fill should be suitable for support of lightly loaded structures �I
using typical spread footing foundations sized to exert a m�imum net allowable soil bearing pressure of '
up to 2,000 pounds per square foot. ,I
Additional Evaluation and Testing During Construction li
Grading of some areas of the site can be difficult because of high moisture content clay soils. We
recommend a geotechnical engineer or his representative be on site during the site grading. At that time,
ths suitability of the subsurface soils far support of fill and foundation loads can be further evaluated.
Excavation depths and provided oversizing can also be documented. i,
Compaction tests should be taken during the site grading operation, utility backfilling within the roadway I
areas, utility backfilling near building pads areas and foundation wall backfill operations. In general,
compaction tests should be taken after about 2 feet of fill has been placed in the excavations and then at
about 2-foot vertical intervals thereafter.
In parking lot areas, we recommend a proofroll be performed before and after placement of the aggregate .
base. The proofroll should be performed by observing the behavior of the subgrade soils when subjected
to the wheel loads of a fully loaded, tandem-axle end dump. These proofrolls should be observed by a
geotechx�ical engineer.
General I
In the absence of our written approval, we make no representation and assume no responsibility to other '�
parties regarding this report. The data, analyses and recommendations may not be appropriate for other
structures or purposes. We recommend that parties contemplating other structures or purposes contact
us.
Service performed by Braun Intertec Corporation personnel for this project have been conducted with
that level of care and skill ordinarily exercised by members of the profession currently practicing in this
area under similar budget and time restraints. No warrant, expressed or implied, is made.
� � , � � � �
: Fehn Gravel and Excavating
Project AL-04-06183
December 17, 2004
Page 3 ��
It has been a leasure erformin t e I��
p p g h se services for you. If you have any quest�ons regardmg the test prt ,
results or recommended excavation depths, please call Henry Vloo at(952) 995-2238. I
Sincerely, ��I
BRAUN 1NTERTEC CORPORATION I
� � �� � � � � � � '���
. Haugo
Senior Engineering Assistant
�
Henry V oo, PE
Associate.—Senior Engineer
Attachments:
Test Pit Location Sketch
Test Pit Logs(4)
c: Mr.James A. Schulz; SEH-St. Cloud
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I N T E R T E C �OB NO: �_04-06183
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GEOTECHNICAL EVALUATION
Proposed Development,Prairie Run Addition LOCATION: See attached sketch.
Kyler Avenue and Settlers Path
Albertville,Minnesota
DRILLER: METHOD: DATE; SCALE: 1"=2'
Elev. Depth
feet feet ASTM Description of Materials BPF WL Tests or Notes
954.5 0.0 Symbol (AS'I'M D2488 or D2487)
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Braun Project AL-04-06183 Boxnv�; Tp_2
GEOTECHNICAL EVALUATION LOCATION: See attached sketch.
Proposed Development,Prairie Run Addition
Kyler Avenue and Settlers Path
Albertville, Minnesota
DRILLER: METHOD: DATE: SCALE: 1" =2'
Elev. Depth
feet feet ASTM Description of Materials BPF WL Tests or Notes
952A 0.0 Symbol (ASTM D2488 or D2487)
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(Topsoil)
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GEOTECHNICAL EVALUATION
Proposed Development,Prairie Run Addition LOCA1'ION: See attached sketch.
Kyler Avenue and Settlers Path
Albertville,Minnesota
DRILLER: METHOD: DATE: SCALE: 1" =2'
Elev. Depth
feet feet ASTM Description of Materials BPF WL Tests or Notes
952.5 0.0 Symbol (ASTM D2488 or D2487)
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(Topsoil)
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Braun Project AL-04-06183 Boxnv�: TP-4
GEOTECHNICAL EVALUATION LOCATION: See attached sketch.
Proposed Development,Prairie Run Addition
Kyter Avenue and Settlecs Path
Albertville,Minnesota
DRILLER: METHOD: DATE: SCALE: 1" =2'
Elev. Depth
feet feet ASTM Description of Materials BPF WL Tests or Notes
954.5 0.0 Symbol (ASTM D2488 or D2487)
CL LEAN CLAY,with organics,black,wet.
(Topsoil)
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