HomeMy WebLinkAboutBuilding Permit #12-0964 TE TIME
CITY OF PRIOR LAKE
INSPECTION NOTICE SCHEDUL 3
ADDRESS
OWNER CONTR.
PHONE NO. PERMIT NO. t Z— l��`
❑ FOOTING O PLUMBING RI ❑ EX/GRADlFILLING
❑ FOUNDATION ❑ MECH RI ❑ COMPLAINT
❑ FRAMING � WATER HOOKUP 0 FIREPLACE RI
❑ INSULATION ❑ SEINER HOOKUP ❑ FIREPLACE FINAL
�FINAL O PLUMBING FINAL ❑ GASLINE AIR TST
❑ SITE INSPECTION O MECH FINAL �
COMMENTS• �,L�Z`�' �'l C. L� -
�MVORK SATISFACTORY, PROCEED
❑ CORRECT ACTION AND PROCEED
❑ CORRECT WORK, CALL FOR ReMiSPECTION BEFORE COVERING
Inspector. � ontr:
CALL 447-9850 FOR THE NEXT INSPECTION 24 HOURS IN ADVANCE.
CODE REQUIREMENTSARE FOR YOUR PERSONAL HEALTH & SAFETY!
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BUILDING PERMIT APPLICATION DEPARTMENT CHECKLIST
NAME OF APPLICANT $o �� � 4-�'� i/�'1 �,�
APPLICATION RECEIVED �'( � 3I� Z '
The Building, Engineering, and Planning Departments have reviewed the building permit
application for construction activity which is proposed at:
� I � °� � �� c,�- L�°t"� �- � �- .
Accepted � Accepted With Corrections
Denied �
Reviewed By: I`�J Date: �� g'Z
Comments: 1. R�°�-�e �'�`5 iTI,� �$ .o ��,�.— (N.9-�,z..-
Z- (QFv I ��+�/ls4 £ �IVSI��1�S P y ��� �h� l,�/1v,4nJ - SeCGS.
�, C�-�� ��✓r—o� ��Sv� o� Gc .4-f �63-355• Z3`�y
l� m� (IJSP�i"rol�S.
i�a.-� /��o�-�' !�v 5' � �/l� � /����
� L-`� 6I ��l LG�i'
"The issuance or granting of a permit or approval of plans, specifications and
computations shall not be construed to be a permit for, or an approval of, any violation of
any of the provisions of this code or of any other ordinance of the jurisdiction. Permits
presuming to give authority to violate or cancel the provisions of this code or other
ordinances of the jurisdiction shall not be valid."
.
DEPARTMENT OF
BUILDING AND INSPECTION • .
SITE ADDRESS 41���.ec..ir� �-/4�� S•L'�
TYPE OF WORK ��� 80�� o��.- W4,..-
USE OF BUILDING � �-
PERMIT NO. cz- �� � DATE ISSUED �o � �z
BUILDER _ ����,,,� �w►.�� ING PHONE # �s�_ Zr�-�33
NOTE: THIS.IS NOT A PERMIT FOR ANY OF THE INSPECTIONS BELOW
THE PERMIT IS BY SEPARATE DOCUMENT
INSPECTOR DATE
FOOTING �,.. 5 � (�s ��c�iNC� ��c- Ra i�l N � - •z3
PLACE NO CONCRETE UNTIL ABOVE HAS BEEN SIGNED
��^�,��- ��o r- �rtv� c,JS�,
FINAL �
- FOR ALL INSPECTIONS (952) 447-9850
Bob Hutchins
From: Jandro, Gregg <GJandro@braunintertec.com>
Sent: Monday, April Ol, 2013 3:29 PM
To: Jason Wedel
Cc: Bob Hutchins
Subject: Heritage Landing Boulder Wall Testing Cost Overrun
Jason — I just spoke to Bob Hutchins and I thought communicating with you is needed to see if we can further address
the testing cost overrun for this project last fall.
In reviewing our file, I found two letters from you, both dated August 20, 2012 which were addressed to Robert Hutchins
and included your cost estimates. However, the attachments to the identical letters which addressed costs had two
different costs. When I took over the job from Henry Vloo (on vacation then) I spotted the letters but did not see the
testing costs had been changed...since the first several pages were the same, I thought the back pages were too and
moved on and set up our field testing program with the assumption that $3,382 was authorized for this project without
knowing the costs had been lowered to $1,346.
When we finished the job and I sent the report and noticed our billing was only $2,319, I thought we were good.
So we have billed $973 more than the lowered fee noted in your second letter.
�t��,�
To move forward, so we do not have to write off all of t $973, c n we s lit the overage and consider this matter
resolved? �
�
Let me know how you want to proceed. Know that we only billed for all the hours expended and did not add any costs
above and beyond what we actually performed.
���u� Gregg R. Jandro, P.E., P. G.
1NTERTE� Vice President
11001 Hampshire Avenue S � Minneapolis, MN 55438
Employee Ownership g52.995.2270 direct � 612.369.8038 mobile
working for you
GJandro@braunintertec.com
braunintertec.com �Twitter: Braun Intertec � Linkedln: Braun Intertec
�
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PLEASE REMIi' TO
• • 1 � � � ; �, � � , � � � BRAUN INTERTEC CORPO[2AltUN
`�'' NW 7644 • PA, BOX 1450'
� _ , + (� MINNEAPOI.IS, MN 55485-7644
� �,�'�'� .: � �,1��� (952) 99b-2086 • FAX (952) 995-2Q20
Tax l,D,#41-1b842(l5
� ��� � A����I�T��
Jason Wedel Invoice Date : 11/14/2012
WSB & Associates, Inc. Invaice #: 362039
701 Xenia Ave S Ste 300 Project #: BL-12-d5823
Minneapolis, MN. 55416-103D Client #: W18622
Client R�{.� 51SnafuE•e �'"�'�Q
Froject # � - � Pl�ase # —t
Fieritage Landing-Boulder Wall Repai ACCOUniing Use: �
Soil Testing Account Code �i I L��'f qp
4179 Heritage Larte
Prior Lake, MN .
For Professioaal Services rendered through 11/2/2072
Boulder Wall Soit Tests
project Management 675.00
Soil Observations & Testing 1,644.00
2,319.00
AmoGnt Due This In�oice 2,319.00
,
Amount Previousiy Billed �.00
P'VVP
�n invoice #
CIient paid on (date)
l/15A � . -��. .
'lease pay from this Invoice, We nC �� .
ferms; Due on receipt,t 1/2°h per month affer 30 days,l B°k annuoi percentage rate. Foaan tva eii2-ot (5nz?
Y . �
PLEASE REMR TO
BRAUN INTERTEC CORPORATION
'' 1 fdW 7644 • P.O. BOX 1450
MINNEAPOLlS, MN 55485-7644
� (952) 995-2086 • FAX (952) 995-2020
Taxf.D,#41-1684205
Project : BL-12-05823 -- Heritage Landing-B Wall RepaF Invoice #: 382038
Phase: Boulder Wafl Soil Tests
7astc: Project Management
Consulting Services Detail Hours Rate Amour�f
Sr. Project Engineer 3.00 1aQ.00 420.00
Word Processing 3.75 68.Q0 255.00
srs.00
Task: Project Management 67�.00
Task: Soil Observations & Testing
Consulting Services Detail Hours Rate Amount
Compadion Testing 9.00 68.00 612.00
Project Engineer 4.50 140.00 630.00
Sample pick-up 1.00 50.00 5Q.00
1,282.00
Non-Salary Expenses Detail Qfy Rate Amounf
Nuclear moisture-density meter charge, per
hour 4.00 10.00 40.00
Standard Proctor Test{ASTM D 698)
� 1.00 15�.00 9 50.00
Trip charge
5.00 25.00 125.00
Rush s�trcharge - Proctor test
1.00 37.U0 37
� 352.00
Task: Soil Observations � Testing 1,644.00
Phase : Phase: Boulder Wall Soll Tests 2,319.00
Total Project: BL-12-05823 -- Heritage Landing-Bou[der Wall Repai 2,318.00
.. E ��SQ �
�lease pay from this fnvolce, W e ��
'erms: Due on recefpt,l 1/2qo per monfh after 30 days,189'o annual percer�tage rate, FoaM Ho. ei�2-o� ��r�x�
Bob Hutchins
From: Kevin Loubier <Kevin@multiventure.net>
Sent: Wednesday, April 10, 2013 11:43 AM
To: todd@boulderimages.com
Cc: Bob Hutchins
Subject: FW: Heritage Landing Retaining Wall
Attachments: DOC120612-12062012160812.pdf; Proposal Letter - 082012.pdf.pdf
Regards,
Kevin Loubier, CCAM
Multiventure Properties Inc
7400 Metro Blvd #380
Edina, MN. 55439
Direct Dia1952-456-6513
www.Multiventure.net
Todd,
As you know we spoke about this on several occasions. We need to resolve the issue of the outstanding balance due to the city for this
project. You indicated that you were going to contact the engineering firm and get a resolution, as far as I know this has not
happened.
Please advise.
-----Original Message-----
From: Bob Hutchins [mailto:BHutchins(a�CityofPRIORLAKE.com]
Sent: Wednesday, January 23, 2013 2:43 PM
To: Kevin Loubier
Subject: FW: Heritage Landing Retaining Wall
fyi
Robert D. Hutchins
Building Official
City of Prior Lake
4646 Dakota Street SE
Prior Lake, MN 55372
952.447.9851 Fax 952.440.4263
City Email Updates. Sign up now.
-----Original Message-----
From: Bob Hutchins
Sent: Friday, December 07, 2012 8:32 AM
To: jadusal3(a��gmail.com; todd(a�boulderima eg s.com
Cc: Larry Poppler
Subject: FW: Heritage Landing Retaining Wall
Julian and Todd, See the attached email I received from Jason Wedel of WSB regarding an overage for Braun inspections on the
project. Also attached are the proposal letter and previous emails. Brauns original estimate was for $1388 and their invoice is for
$2319 for an overage of $961. Please provide a check for the overage to the city and we will pay the invoice.
Thank you
1
Robert D. Hutchins
Building Official
City of Prior Lake
4646 Dakota Street SE
Prior Lake, MN 55372
952.447.9851 Fax 952.440.4263
City Email Updates. Sign up now.
-----Original Message-----
From: Jason Wedel [mailto:JWede1(a�wsben .�]
Sent: Thursday, December 06, 2012 3:36 PM
To: Bob Hutchins
Subject: Heritage Landing Retaining Wall
Bob,
Attached is a copy of the final invoice from Braun Intertec for geotechnical services related to the Heritage Landing boulder retaining
wall. The total dollar amount is $2,319, which is $961 over the original proposal. Braun Intertec has stated that their final cost was
based on the level of effort that was needed for the project as it was being constructed. This included more trips to the site and more
staff time than was originally anticipated.
If you could please contact the home owners association and request the additional funding we would greatly appreciate it.
lf you have any questions or need additional information, please let me know.
Thank you.
Jason Wedel
Jason Wedel, PE
Municipal Senior Project Manager
d:763-287-8520 � c:612-369-3931
WSB & Associates, Inc. � 70l Xenia Avenue South, Suite 300 � Minneapolis, MN 55416
Julian, See attached proposal from WSB for plan review and site inspection for the proposed retaining wall. Their proposal was
$1388.00. Also included was a price from Braun Engineering for their soils engineer to conduct soils observation analysis and testing.
Their price is $1358.00. Todd Montreuil had stated he would hire a soils engineer to conduct soils observation analysis and testing for
a lesser price. The soils engineer Todd would hire would need to conduct the same tests as Braun did in their proposal and would need
to be approved by the city.
Thank you
Robert D. Hutchins
Building Official
City of Prior Lake
4646 Dakota Street SE
Prior Lake, MN 55372
952.447.9851 Fax 952.440.4263
City Email Updates. Sign up now.
From: Jason Wedel [mailto:JWede1(a�wsben .�]
Sent: Wednesday, August 22, 2012 8:40 PM
To: Bob Hutchins
Subject: Revised proposal for Heritage retaining wall
Bob,
2
Attached is the revised proposal we discussed this afternoon. We have worked really hard to keep the cost down. Please keep in mind
that if we need to review the plans more than once or if the construction is slower than expected we may need to discuss additional
fees.
Please let me know what you think.
Thanks.
Jason
Jason Wedel, PE
Municipal Senior Project Manager
d: 763-287-8520 � c: 612-369-3931
WSB & Associates, Inc. � 701 Xenia Avenue South, Suite 300 � Minneapolis, MN 55416
This email, and any files transmitted with it, is confidential and is intended solely for the use of the addressee. If you are not the
addressee, please delete this email from your system. Any use of this email by unintended recipients is strictly prohibited. WSB &
Associates, Inc. does not accept liability for any errors or omissions which arise as a result of electronic transmission. If verification is
required, please request a hard copy.
3
� S i ��-���-
WSB
-� Engineering 1 Planning 1 Environmental 1 Construction 701 Xenia Avenue South
& Associates, Inc.
Suite 300
City of Prior Lake April 19, 2013 Minneapolis, MN 55416
Attn: Robert Hutchins Project No: 01905-050 Te1:763-54i-48o0
4646 Dakota Street SE Invoice No: 3 . Fax: 763-541-1700
Prior Lake, MN 55372
Heritage Landing Retaining Wall
Professional Services from March 01. 2013 to March 31. 2013
Consultants
Braun Intertec Corp.
11/30/2012 Braun Intertec Corporation Invoice No. 362039 1,358.00
Total Consultants 1,358.00 1,358.00 �
Total this Invoice $1,358.00
5,
Billings to Date �
Current Prior Total � �
Labor 0.00 1, 369.00 1, 369.00 �/� � r� ,
Consultant 1,358.00 0.00 1,358.00 ��/�
Totals 1,358.00 1,369.00 2,727.00 �
Comments:
Approved by:
R ewed by: James Kennedy
� Project Manager: Jason Wedel
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� PLEASE REMIT TO
BRAUN INTERTEC CORPORATION
NbV 7644 • P.O. BOX 1450
� MINNEAPOLIS, MN 55485-7644
� (952) 995-2086 > FAX (952) 995-2020
TpxI.D.#41-1684205
Jason Wedel Invoice Date : 11/14/2012
WSB & Associates, Inc. Invoice #: 362039
701 Xenia Ave S Ste 300 F'roject #: BL-12-05823
Minneapolis, MN. 55416-1030 Client #: W18622 � ��_
Client R�f : _ . �°�.-��'��''` �
� c1 ��' . „ ,.._��A.��,�� ,. ;. N
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Heritage Landing-Boulder Wall Repai ' �'� �_..ns� :
Soil Testing ;,=1ccc;uiif i;uu�=: �.. r�.r' ,. .` t�_, '�.�-' E�-� �
4179 Heritage Lane � � °�- � ° ° � �
Prior Lake, MN
For Professional Services rendered through 11/2/2012
Boulder Wall Soil Tests
Project Management 675.00
Soil Observations 8� Testing 1,644.00
- �"T vc
Amount Due This Invoice ---���'�' � � f 3�� :t�
Amount Previously Billed 0.00
�1 SI�! �
We accept
Please pay from this invoice.
Terms: Due on receipt,l 1/2% per month after 30 days,l8% annual percentage rate. FoRnn No eii2-o� �si
PROVIDING ENGINEERWG AND ENVIRONMENTAL SOLUTIONS SINCE 1957.
- � INVOICE
PLEASE REMIT TO
i
BRAUN INTERTEC CORPORATION
NW 7644 • P.O, BOX 1450
� MINNEAPOLIS, MN 55485-7644
(952j 995-2086 � FAX (952) 995-2020
TaxI.D,#41-1684205
Project : BL-12-05823 -- Heritage Landing-Boulder Wail Repai Invoice #: 362039
Phase: Boulder Wall Soil Tests
Task: Project Management
Consulting Services Detail Hours Rate Amount
Sr. Project Engineer 3.00 140.00 420.00
Word Processing 3.75 68.00 255.00
675.00
Task: Project Management 675.00
Task: Soil Observations & Testing
Consulting Services Detail Hours Rate Amount
Compaction Testing 9.00 68.00 612.00
Project Engineer 4.50 140.00 630.00
Sample pick-up 1.00 50.00 50.00
1,292.00
Non-Salary Expenses Detail Qty Rate Amount
Nuclear moisture-density meter charge, per
hour 4.00 10.00 40.00
Standard Proctor Test(ASTM D 698)
1.00 150.00 150.00
Trip charge
5.00 25.00 125.00
Rush surcharge - Proctor test
1.00 37.00 3 7. 00
352.00
Task: Soil Observations & Testing 1,644.00 •
Phase : Phase: Boulder Wall Soil Tests 2, 319.00
Total Project: BL-12-05823 -- Heritage Landing-Boulder Wall Repai 2,319.00
� �OSA
Please pay from this invoice. We aCCept � ��
Terms; Due on receipt, l 1/2% per month affer 30 days,l8% annual percentage rate.
FORM NO BI12-Ot (5/12)
PROVIDING ENGINEERING AND ENVIRONMENT�AL SOLUTIONS SINCE 1 957,
Page 1
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& Associates, Inc. Engineering 1 Planning 1 Environmental 1 Construction� _, � 701 Xenia Avenue South
�-°='e� �--t!�__��-_.�� __"._: ...,,� Suite 300 �
City of Prior Lake November 15, 2012 Minneapolis, MN 55416
Attn: Robert Hutchins Project No: 01905-050 Te1:763
17073 Adelmann Street Invoice No: 2 Fax: 763-541-1700
Prior Lake, MN 55372
Heritage Landing Retaining Wall
Professional Services from October 01. 2012 to October 31. 2012
Professional Personnel
Hours Rate Amount
Project Management/Coordination
Nelson, Aaron 2.00 107.00 214.00
Wedel, Jason 1.00 128.00 128.00
Plan Review
Nelson, Aaron 5.00 107.00 535.00
Totals 8.00 877.00
Total Labor 877.00
Total this Invoice $877.00
Billings to Date
Current Prior Total
Labor 877.00 492.00 1,369.00 � / /
Totals 877.00 492.00 1,369.00 �, /L_ 1 Z
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Comments:
���,.1 G� Sr.�-n.�;
1 ��-'� ��l A�G�,o�
Approved by: �
Reviewed by: James Kennedy ��� �k("��
Project Manager: Jason Wedel f,� I
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Sufb 300
��, MN 1i641d
TN: 1A�-641-4a00
F�c; !A�-641-1700
�1ugu� 20, 2412
Mr. Robeit D. Hutchins - Buill�ciiing Official "
C:ity of Prior I,ai�e
4646 Dako�a Stroct SE
P�'ia�' L�kke, MN 55372-1714
FLe: Heritsge Landing goulder Retaining W�11 Repl�eemeat
Ikar Mr. I�iutchins:
In nca�por�se to Ycnu' Request for Q�te�, WSB dt As�aciatea is plea�ad �o submit to pr�vide
stcv�ctural and �ga�tcc�,nical cngin�eexing senrices for the rccon�o� of the boulda retaining .
wa111oc�tod vwit�ir� thc Heri#��e I,�d�z� subdivi�ion �t 4179 Hexitage Lane. Thc inform�6on
beiow ou�linea our project scoPe, Prolect undcrstanding, Pr'ole�t� sc�edule, WSB project tc�m,
e�ma�ed f�, �nd othe� required items.
Pro jeet Understanding
The City of Prior Lake is se�king � con�ult�n# to aasist with the ov�rvi�wr of reconstructing a
bouldea ret�ning wall loc�ted withiri the Herita�c L�nding �ubdivi�ion. Tho
reviewing the etiginexring drawings providai by the contracto� or�-site �°� includes
constntcted re#ai ' ► �tion of �e nzwly
�8 �, �d geo�echnical analysis and testing of tt�e �il� suPportin8 and
being retained by thc w�il.
Project Scope
We havc thoroughly rev�cwed �nd researc�a! the items identifiod in the Request for Quote� and
progose to complete the �tur�t engineering service� identified in house and utiliu Braun
Intertec as a� subconsultant for the geotechnical scrvice�. We w�ders�nd that the project inclndes
the following ge,r�eral con�truction �ctivitics:
' �. Pl�n Review
a. Revievw plans provic�ed by ret�ining wall contractor
b. Plan reviewr ec�mpieteci by► S#�te of Minnesota lieenseci engineer
e. Provide comanent� Qn plaa�
d. Pr�pare letter of reconamend�ho� upon receipt of revised plan� that address all
comment� identified during review
�� ■ S't. Cioud
EQual Opport�n�tY E�PbYer
u''e�iwt`'"�eu""i+'� *'� ►ww+rx�.�o.r s.�-.uou.eK
,/� . .
;-,��� 'Mt: ROb�rt $tltc�in� .
. • , August 20, 2A 12
Pagc �
2. Cvnstru�,icx� 4b�rratio�
�. Sito inapectioa to be com�letcd by State of Minac,sota licx�ed engiaex�
b. The followi�g itans will ba cc�mple#cd for the wall:
i. O� aad doc�t consfruction a�d loc�ic�n
ii. O�we c��,atn�ction of w�11, including gco�t ifrequircd
iii. Finai i��pecti,ou �ad E� re�Ort .
�. Geotec Anal�aia �t T�g
a. Observe and docu��� bcaring �ils below �ch of t�.e rct�ining w�lllls
�- ���ument aoil pl�ce�nent au�i providc compe,ction testing
a Provide IInal �ail co�np�tioa n�aort
Project 3cb�dule
Belovv is a� li�t of t�c m�jor work t�ca �ul pmposed datcs for achievemar� Assvming a Natico
to Proceed ia i�styed oa Au�ust 21, 2412. we propose tt�e followring sc�le:
Augusf 21, 2�1Z
........................................................Awa�d consult�nt coutr�ci
��c 2�, Zo�a ...................
............................................ Froject Plan Revicw
�iug�rst 22, 2012 ....... ............... ..... ...... ... ...... ... ........ Prov�dc Camme,nts on Pl�ns �
August 22, 2�12 .......................................Approve Ret�n�ed P� for Cons�ruction
August 23, 2012 ................................. ... ..........On Site Precons�etion Mexting
A�gu�t 27, 2012 ..................
............... ............................. CQnstr�tion Begsns
Au�t 31, 2fl12 .............................................. Con�ction Co lete
.......... �
The schedule �ove assuanes ffi�# the contr�to� w�il ta�e ap�oximately► o�e week to complete
tt� w�ll. If ttzc con.tr�tor is �b��e to ccxinplete it mo�e quickly, ti�.e schcdule eaz� be adjusted
accordingly.
Propoaed Team •
The following pcople w�ill be �od tA t�is p�oject:
Ja�on Wedel (WSB � �.) —Project M.a�,ager
Aaro� Nelsor� (VVSB d�c Assoc,) _ Stcuctur�t Engin�eer
Hanry Vloo (Braan Intcrtec) -- (}eotacbnic�ll Project 1 '�IanagerlGeotcchnical Engineer
'�a�,va.,�.w.m+,..+i..w...rn3..,�
, '�
v
: yr' Mr. Rc�bert Htt�ns .
. � � Au�t Za, ao�2 . .
� Paga 3
Estfm�t�d Few
T� estima�d fees �r t�s proje,�ct are based on the i�ccros auid hours included in the Roq�t for
Quotc.
c��,��t �r���,�„�•
Licansed 5��1 E�gineer Dasigu Review 4 2�ours � 107ihr 5428
Licen�ed Siru�cturai Euginecr Site Viaits 4 hours s1071t�r S42$ �
Lic�sed Sh�#�al Eaginar Report 2 hvurs S 107thr 5214
�� M�S�� Z �urs �128hu S,lSb
Cletica�rVCopiea�'ost�o 1 houra S62lhr ,�
��� 51,38E
(}�,!p �r� •�",�riY�°fritt_
Density Tasting of Engiueuod Fill 4 e�ch S 1 t1�r �40
• Proctur�Mtoi�re Do�ity (Non-cohesive oniy} i ee�ch $150J� S 150
Proctor/Moisture Da�ity (Co�esive onlY) 1 e�ch $15C�lea S15a
Licensed C�oo�hnica! Soil E;�ineer 2 hours S 1�01hr 5280
� C�eot�hnica� Project Mar�agu' 2 hours �144�hr 5280
Soils P�nginee�ing TeGhnici�n 4 hours $b8/hr 5272
Technician Trip Charge � 2 e� �251ea S5�
ClericaURaportfCapiGS/Po�B� 2 hours S68/hr ��¢ .*
S�btotal
51,358
Total Co�t ���� �
If thc �ctu�l q�titie� excecd t�►e ab�ove estim�te, these items will bc paid nt the following unit
pricea:
Dcnsity Te�ting of Engineered Fill — Nuclear Gauge S 10/hr
(ASTM D2922) .
Proctors/�oisture Den�ity Rel�tionship of Soil (Non-cohesive only) S150h.c.st
�AS'TM D698, D155'n
� Proctar�!'Mo�sh�re UGnns�ty Relationship of Soil (Cohe�iwe orily) 5150/test
(ASTM D69�, D1557)
Me�l�ca1 Sieve An�lysi�/Cirad�tiaa S 10(}i`test
(ASTM C117iC136) '
L�iccn$od Stn�etural Engir�r �105lhr
Structural PrajeCt 1Ntanager �126Jl�r
Licer�ocl C#cotechnical Soils Engineer � S144flar
(3eotochnic�l Projeet Manager �140ihr
So�ls Engit�oering Techuician �658hr
Techaieian Trip Charge �
Clcric�t.epc�rt pr�p�r�ionlRoport Copies/Post�ge �65/hr
��.
� .�.�+�..�..�.►..,.,,��.,.a.+�_«n.u..�.
,.
# �;
. . ,
�Mr. Robart Hutchins
August 20, 2012 `
Page 4 '
WSB �nci Braun Int�tec have aomplcted numerous projects si�nilnr to tt�is arni have tho sta�ffaad
expqti�o tc> complett3 ell of thte tas�cs reque,�ted while prowiding the City with un�ar�lleled
creativity �i �ovation.
We �re, as �w+�ys, eathuu�i�c �bout this oPlaorh�nity b� provide serv�ices to the City► of Prior
L�kke �nd have thaughtflilly PrePared tlua proposal for your review. If you have any questions
re�rding our propos�ll, plcasc cont�ct mz at 763-2II7-II520. T��nk y+ou for this opportunity!
Sinceitly,
WSB h Assc�c�s, IrtG
J'a�� C. Wacld, PE - . _. .
Client Rq�re�eentative
,
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1
� �
Bob Hutchins
From: Aaron Nelson <anelson@wsbeng.com>
Sent: Monday, October 08, 2012 4:42 PM
To: Bob Hutchins; Jandro, Gregg
��� Jason Wedel; Todd@Boulderimages.com
Subject: RE: Heritage Retaining Wall (Braun Project BL-12-05823)
Bob,
Per my conversation with Todd at Boulder Images, he will be bringing out suitable backfill for the boulder wall to meet the
design parameter.
This addresses my comments regarding the design for the wall.
Greg,
They should have the backfill there tomorrow, Tuesday Oct. 9 by 3pm for verification of 110 pcf soil parameter.
However, all the sampling and testing could be done on Wednesday morning provided it meets the criteria.
Please let me know how you intend to proceed.
All,
They should have the site ready for reconstruction by 7:30am on Wednesday morning.
We should meet out there for a site review at that time.
Please contact me if you have any questions or can not make the meeting.
Thank you,
Aaron Nelson
Aaron Nelson, PE
Structural Pro�ect Manager
d 763-231-4844
WSB & Associates, Inc. � 701 Xenia Avenue South, Suite 300 � Minneapolis, MN 55416
�� �'��� „ +i • �,,. �����r
��
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d b� pq
Th�s emad, and any frles transmrtted wrth it, �s confidenUal and is intended sole/y for the use of the addressee If you are
not the addressee, please de/ete th�s email from your system Any use of this emad by un�ntended rec�p�ents rs strrct(y
prohibrted WSB & Assocrates, Inc does not accept liab�lrty for any errors or omrss�ons wh�ch arue as a result of
electronrc transmiss�on If venfication is required, please request a hard copy
1
/ MJP Associates, l[d.
� d362 Oal:mcdc Lanc
W hi tc Bear Lake, MN 55 t 10
PH. 651-42G-7037
- �� FAX 651-426-6643
Structural Engineering Consultants
���cn�.mip-associatcs com
Boulder Retaining Wall Design Submittal
MJP Associates, ltd. Project No.: 120803
Client:
Boulder Images, Inc.
14555 Robert Trail South
Rosemount, MN 55068
Project Name:
Heritage Landing
Boulder Retaining Wall Repair
Prior Lake, MN
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Digitally signed by Michael 1 Preston
. DN: cn=Michael 1 Preston, o=MJP Associates,
M i e h a e I J P re sto n Itd., ou, email=mike@mjp-associates.com, c=US
Date: 2012.08.15 11:5822 -OS'00'
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 ENGINEE L�VDE E S OF THE STATE OF MINNESOTA
: . .
�
DATE: 08/15/2012 REG. NO. 20216 —
CONTENTS
1 DESIGN CRITERIA
2 PLANS/ELEVATIONS
3 DETAILS
4 CALCULATIONS (SUBMITTED ON REQUEST)
5 SUPPORTING DOCUMENTATION
1 Design Criteria
• The design for the boulder retaining wall making up this project is based on the following assumptions
and our understanding of this project from a recent telephone conversations with Boulder Images, Inc. and
existmg condition photos by others & submitted by Boulder Images, Inc.
• Soil Unit Weight 110 PCF
• Field Stone Unit Weight 165 PCF
• "Ka" (Assumed Active Soil Pressure Coefficient) 0.28 ^" �` ` �� � ��
= z -�,� .�.
• "Kp" (Assumed Active Soil Pressure Coeff�cient) 3.54 . -- - - -- -
� - --
• "f' (Assumect Friction Coefficient) 0.50
• Minimum Wall Batter See Plans
• Top Wall Offset See Plans
• Soil Surcharge 0 PSF
• The retained slope is assumed to be stable.
� � �� �
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3.1 Proposed"� 3
2 �°" x� .
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i" � `":: 1 ^ ae ' $ , �� �• ,� " � (� w�S V
�.M1�� . � �¢ Y s '�NY y��#��+!' ; ... �
. , . _ ki �� r 3��a..,.� �7d:ts'. >6' � 1
Notes:
1) Existing 5C Wall
2) Maximum Exposed Height � 8.5' (Existing)
3) Maximum Total Height � 9.5' (Existing)
Client: Boulder Images, Inc.
Project: Heritage Landing Wall Repair 2. Existing Conditions - SC Wall
BY� MJP Date: 08/1 S/2012 NO't' TO SCALE
MJP Associates, Itd. - 651-426-7037
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Varies i _.
i � 24 •' �����
i •.f����°
� 24 '�'' '� �°�����
8.5' MAX � � .'•:'•: �����-
i� 30 .;� `_�����
�•:._� �� (� 8
Varies � 30 A�•.:�.;�_
�� ����� _°������°i=
5 �����-�����° 7
Notes:
1) Refer to Elevations for wall location & height
2) See "Design Criteria" for specifications.
3) Wall weight/ ft. @ maximum height � 3810 #/ft. as follows:
Stone designations refer to minimum depth x height in inches per lineal foot of wal�.
4) Reduce Wall height by reducing top courses @ reducing wall heights.
5) Note minimum toe burial depth =6".
6) 24" wide free draining granular backfill zone.
7) 4" � Drain tile wrapped with geotextile fabric and sloped to daylight.
8) 6oz commercial landscape fabric
Client: Boulder Images, Inc.
Project: Heritage Landing Wall Repair 4(C) 8 .5 ' Wall
BY� MJP Date: 08/15/2012 3.1
SCALE: 3/16" = 1'
MJP Associates, Itd. - 651-426-7037
S Supporting Documentation
5.1. Soil Property Data
5.2. (4) Course Wall Geometry & Design Schematic
�
� Batter ;
' ��
� ,
Off Set ; ;
� ,
,
�
� ���� (� :�;:�::::.:�'
� C3 W3 � Granular Backfil Zone
Hdes-C1 � ' A (calc) - Note 5
H H C2 W2 �
des Drain tile sloped to daylight
�,-
C1 W1 ' I=
�:�:'� -�����------------
= _ _
------°--=IIIII = III=_ IIIII
Assumed Point =IIIII= �IIII Base
Of Rotation
Notes:
1) Batter angle is "Theta"
2) Courses are assumed to have the equivalent weight of a cube as shown.
3) Moment Arm for Course(i) above the base course =[C2+C3+...C(i) x tan(theta))
+ 1 /2 C(i)]
4) Offset =(Hdes - C1) x Tan(theta)
5) Size depends on orientaion of upper stones. Compare area from X-section to
calculated value.
Client: Boufder Images, Inc. �q.� (C) Wall
Project: Heritage Landing Wa�l Repair r . 2
gy; M�p Date: 08/15/2012 No'1"ro sCALE
MJP Associates, Itd. - 651-426-7037
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f31 bad6li cdl�.�e il:ty 6�r.9 gr.�va ��til �f�ni d!rncs rtm+t of ics e':rneit} h� •
�rot� .r.1 r.ffd�.at v:i! wicL stccr.� (i) Ne�lt.t� n( �rry r..(t ui teH dq, yaK rnkcn xa Jir nr.� n�al
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Client: Boulder Images, �n�. Soil Properties
Project: Heritage Landing Wall Repair c , 1
By: MJP Date: 08/15/2012 -�`�'-
MJP Associates, Itd. - 651-426-7037
a
<
MJPAssociates, Itd. DATE: 8/14/12
4362 Oakmede Lane Glient: Boulder Images
White Bear Lake, MN 55110 Project: Heritage Landing
P:651-426-7037 * F:661-426-6643 Element: 8.5' Wall
Wall Criteria ln ut
Soil Properties 8 Geometry Courses
Soil Wt. (pcf) 110.00 (M) "D" (ft) "H" (ft) Wt. (Ibs/ft)
Stone Wt. (pcf) 165.00 (M) C1 (bot.) 2.50 2.50 1031
"Phi" Angle (deg) 34.00 C2 2.50 2.50 1031
Base Friction "f' 0.50 (M) C3 2.00 �00 660
Theta (deg) 12.00 (M) C4 2.00 2.00 660
"Htoe" (ft.) 0.50 (M) C5 0
Surcharge (psf) o.00 (M� cs o
Backfill Slope 0.00 C7 0
Axsec (sq.ft.) 3.89 (M) C8 (top) 0
Courses 4
Wall Crite ia Out �
Geometry ` . �,� '°°' Acting Forces
` F1 (Ret.) F2 (Surch) Arm1 (ft) Arm2 (ft) Mot (ftlbs)
Ka - active pres 0. Fh - Late�al Load (plf) 1259 0 3.00 0.00 3778
Kp - passive pres. 3.54 F2 657 0 2.17 0.00 1423
Hdes- des. ht. (ft) 9.00 F3 249 0 1.33 0.00 332
Hs surcharge (ft) 0.00 F4 62 0 0.67 0.00 41
H- net ht. (ft) 8.50 F5 0 0 0.00 0.00 0
OfFset (ft) 1.38 F6 0 0 0.00 0.00 0
Soil Base Width (ft) 0.88 F7 0 0 0.00 0.00 0
Acalc (sqft) 3.97 F8 0 0 0.00 0.00 � 0
A (sq.ft.) 3.89
Ww -Wall Weight (plf) 3383
Ws - Soil Weight (pl� 428
Wt - Gravit Load if 3810
Resistin Forces & Stabili Checks
FSmin = 1.50
Ff (Ibs) Pp (Ibs) SLR (Ibs) FS Sliding Mr (ftlbs) Mr-sum FS OT
C1 (Fuil Wall) 1905 49 1954 1.55 1289 5989 1.59 OK
C2 1411 0 1411 2.15 1837 4700 3.30 OK
C3 792 0 792 3.18 1291 2863 8.63 OK
C4 396 0 396 6.37 1572 1572 37,91 OK
C5 0 0 0 NA 0 0 NA OK
C6 0 0 0 NA 0 0 NA OK
C7 0 0 0 NA 0 0 NA OK
CS 0 0 0 NA 0 0 NA OK
DESIGN CRITERIA IS SATISFIED
' ` -
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� Engineering ■ Planning ■ Environmental ■ Construction 701 Xenia Avenue South
Suite 300
Minneapolis, MN 55416
Tel: 763-541-4800
Fax: 763-541-1700
E�UgUSt ZO, ZO12
Mr. Robert D. Hutchins — Building Official
City of Prior Lake
4646 Dakota Street SE
Prior Lake, MN 55372-1714
Re: Heritage Landing Boulder Retaining Wall Replacement
Dear Mr. Hutchins:
In response to your Request for Quotes, WSB & Associates is pleased to submit to provide
structural and geotechnical engineering services for the reconstruction of the boulder retaining
wall located within the Heritage Landing subdivision at 4179 Heritage Lane. The information
below outlines our project scope, project understanding, projects schedule, WSB project team,
estimated fees, and other required items.
Project Understanding
The City of Prior Lake is seeking a consultant to assist with the overview of reconstructing a
boulder retaining wall located within the Heritage Landing subdivision. The project includes
reviewing the engineering drawings provided by the contractor, on-site inspection of the newly
constructed retaining wall, and geotechnical analysis and testing of the soils supporting and
being retained by the wall.
Project Scope
We have thoroughly reviewed and researched the items identified in the Request for Quotes and
propose to complete the structural engineering services identified in house and utilize Braun
Intertec as a subconsultant for the geotechnical services. We understand that the project includes
the following general construction activities:
1. Plan Review
a. Review plans provided by retaining wall contractor
b. Plan review completed by State of Minnesota licensed engineer
c. Provide comments on plans
d. Prepare letter of recommendation upon receipt of revised plans that address all
comments identified during review
Minneapolis ■ St. Cloud
Equal Opportunity Employer
M 1PRIOR LAF:E�Retauung Wall Proposal N2�Proposal Letter - 082012 doc
- Mr. Robert Hutchins
August 20, 2012
Page 2
2. Construction Observation
a. Site inspection to be completed by State of Minnesota licensed engineer
b. The following items will be completed for the wall:
i. Observe and document construction and location
ii. Observe construction of wall, including geomat if required
iii. Final inspection and final report
3. Geotechnical Observation, Analysis & Testing
a. Observe and document bearing soils below each of the retaining walls
b. Document soil placement and provide compaction testing
c. Provide final soil compaction report
Project Schedule
Below is a list of the major work tasks and proposed dates for achievement. Assuming a Notice
to Proceed is issued on August 21, 2012, we propose the following schedule:
August 21, 2012 ........................................................Award consultant contract
August 22, 2012 ........... ......... ......... ............ ... ......... .......... Pr � ct Plan Review
o'e
August 22, 2012 ..................................................... Provide Comments on Plans
August 22, 2012 .......................................Approve Revised Plans for Construction
August 23, 2012 ..............................................On Site Preconstruction Meeting
August 27, 2012 ........................... ......... ...... ................ .... Construction Begins
August 31, 2012 ........................................................ Construction Complete
The schedule above assumes that the contractor will take approximately one week to complete
the wall. If the contractor is able to complete it more quickly, the schedule can be adjusted
accordingly.
Proposed Team
The following people will be assigned to this project:
Jason Wedel (WSB & Assoc.) — Project Manager
Aaron Nelson (WSB & Assoc.) — Structural Engineer
Henry Vloo (Braun Intertec) — Geotechnical Project Manager/Geotechnical Engineer
M�PRIOR LAIiEUtclammg Wall Proposal N2�Proposal l.etter - U82U I2 doc
Mr. Robert Hutchins
August 20, 2012
Page 3
Estimated Fees
The estimated fees for this project are based on the items and hours included in the Request for
Quote.
Structural En�neerin�:
Licensed Structural Engineer Design Review 4 hours $107/hr $428
Licensed Structural Engineer Site Visits 4 hours $107/hr $428
Licensed Structural Engineer Report 2 hours $107/hr $214
Project Manager 2 hours $128/hr $256
Clerical/Report/Copies/Postage 1 hours $62/hr $62
Subtotal $1,3 88
Geotechnical Engineerin�:
Density Testing of Engineered Fill 4 each $10/hr $40
Proctor/Moisture Density (Non-cohesive only) 1 each $150/ea $150
Proctor/Moisture Density (Cohesive only) 1 each $150/ea $150
Licensed Geotechnical Soil Engineer 2 hours $140/hr $280
Geotechnical Project Manager 2 hours $140/hr $280
Soils Engineering Technician 4 hours $68/hr $272
Technician Trip Charge 2 each $25/ea $50
Clerical/Report/Copies/Postage 2 hours $68/hr $136 r 1�
Subiotal $1,358 l �; �� .�,�
� .�' �.� ,'
Total Cost $2,746 � � �
If the actual quantities exceed the above estimate, these items will be paid at the following unit
prices:
Density Testing of Engineered Fill — Nuclear Gauge $10/hr
(ASTM D2922)
Proctors/Moisture Density Relationship of Soil (Non-cohesive only) $150/test
(ASTM D698, D1557)
Proctors/Moisture Density Relationship of Soil (Cohesive only) $150/test
(ASTM D698, D1557)
Mechanical Sieve Analysis/Gradation $100/test
(ASTM C117/C136)
Licensed Structural Engineer $105/hr
Structural Project Manager $126/hr
Licensed Geotechnical Soils Engineer $140/hr
Geotechnical Project Manager $140/hr
Soils Engineering Technician $658hr
Technician Trip Charge $25/trip
Clerical/Report Preparation/Report Copies/Postage $65/hr
� M�PRIOR LAICEUtelauung Wall Proposal M2�Proposal Letter -082U12 doc
• Mr. Robert Hutchins
August 20, 2012
Page 4
WSB and Braun Intertec have completed numerous projects similar to this and have the staff and
expertise to complete all of the tasks requested while providing the City with unparalleled
creativity and innovation.
We are, as always, enthusiastic about this opportunity to provide services to the City of Prior
Lake and have thoughtfully prepared this proposal for your review. If you have any questions
regarding our proposal, please contact me at 763-287-8520. Thank you for this opportunity!
Sincerely,
WSB & Associates, Inc.
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Jason C. Wedel, PE
Client Representative
hl �PRIOR LN:EUtetauung Wall Proposal #2�Proposal Letter -OR2o12 dx
MJP Associates, Itd. DATE: 8/14/12
4362 Oakmede Lane Client: Boulder Images
White Bear Lake, MN 55110 Project: Heritage Landing
P:651-426-7037 " F:661-426-6643 Element: 8.5' Wall
Wall Criteria ln ut
Soil Properties & Geometry Courses
Soil Wt. (pcf) 110.00 (M) "D" (ft) "H" (ft) Wt. (Ibs/ft)
Stone Wt. (pcf) 165.00 (M) C1 (bot.) 2.50 2.50 1031
"Phi" Angle (deg) 34.00 C2 2.50 2.50 1031
Base Friction "f' 0.50 (M) C3 2.00 2.00 660
Theta (deg) 12.00 (M) C4 2.00 2.00 660
"Htoe" (ft.) 0.50 (M) C5 �
Surcharge (psf) 0.00 (M) C6 �
Backfill Slope 0.00 C 0
Axsec (sq.ft.) 3.89 (M) C8 (top) �
Courses 4
Wall Criteria Out ut
Geometry Acting Forces
F1 (Ret.) F2 (Surch) Arm1 (ft) Arm2 (ft) Mot (ftlbs)
Ka - active pres 0.28 Fh - Lateral Load (plf) 1259 0 3.00 0.00 3778
Kp - passive pres. 3.54 F2 657 0 2.17 0.00 1423
Hdes- des. ht. (ft) 9.00 F3 249 0 1.33 0.00 332
Hs surcharge (ft) 0.00 F4 62 0 0.67 0.00 41
H- net ht. (ft) 8.50 F5 0 0 0.00 0.00 0
Offset (ft) 1.38 F6 0 0 0.00 0.00 0
Soil Base Width (ft) 0.88 F7 0 0 0.00 0.00 0
Acalc (sqft) 3.97 F8 0 0 0.00 0.00 0
A (sq.ft.) 3.89
Ww -Wall Weight (plf) 3383
Ws - Soil Weight (plf) 428
Wt - Gravit Load if 3810
Resistin Forces 8 Stabilit Checks
FSmin = 1.50
Ff (Ibs) Pp (Ibs) SLR (Ibs) FS Sliding Mr (ftlbs) Mr-sum FS OT
C1 (Full Wall) 1905 49 1954 1.55 1289 5989 1.59 OK
C2 1411 0 1411 2.15 1837 4700 3.30 OK
C3 792 0 792 3.18 1291 2863 8.63 OK
C4 396 0 396 6.37 1572 1572 37.91 OK
C5 0 0 0 NA 0 0 NA OK
C6 0 0 0 NA 0 0 NA OK
C7 0 0 0 NA 0 0 NA OK
C8 0 0 0 NA 0 0 NA OK
DESIGN CRITERIA IS SATISFIED
. �
.
� � MJP Associates, ltd.
4362 Oakmede Lane
White Bear Lake, MN 55110
-� `= PH. 651-426-7037
FAX 651-d26-6643
Structural Engineering Consultants �r�rlv.mjp-associates.com
Boulder Retaining Wall Design Submittal
MJP Associates, ltd. Project No.: 120803
Client:
Boulder Images, Inc.
14555 Robert Trail South
Rosemount, MN 55068
Project Name:
Heritage Landing
Boulder Retaining Wall Repair
Prior Lake, MN
Digitally signed by Michael J Preston
M • DN: cn=Michael J Preston, o=MJP Associates,
i c h a e I J P re sto n Itd., ou, email=mike@mjp c=US
Date: 2012.08.15 11:58:22 -05'00'
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 ENGINEE DE E S OF THE STATE OF MINNESOTA
. �
DATE: 08/15/2012 REG. NO. 20216
CONTENTS
1 DESIGN CRITERIA
2 PLANS/ELEVATIONS
3 DETAILS
4 CALCULATIONS (SUBMITTED ON REQUEST)
5 SUPPORTING DOCUMENTATION
1 Design Criteria
• The design for the boulder retaining wall making up this project is based on the following assumptions
and our understanding of this project from a recent telephone conversations with Boulder Images, Inc. and
existing condition photos by others & submitted by Boulder Images, Inc.
• Soil Unit Weight 110 PCF
• Field Stone Unit Weight 165 PCF
•"Ka" (Assumed Active Soil Pressure Coefficient) 0.28
•"Kp" (Assumed Active Soil Pressure Coefficient) 3.54
• "f ' (Assumed Friction Coefficient) 0.50
• Minimum Wall Batter See Plans
• Top Wall Offset See Plans
• Soil Surcharge 0 PSF
• The retained slope is assumed to be stable.
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Notes:
1) Existing 5C Wall
2) Maximum Exposed Height � 8.5' (Existing)
3) Maximum Total Height � 9.5' (Existing)
Client: Boulder Images, Inc.
Project: Heritage Landing Wall Repair Existing Conditions - SC Wall
2.1
By: MJP Date: 08/15/2012 NOT TO SCALE
MJP Associates, Itd. - 651-426-7037
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Notes:
1) Refer to Elevations for wall location & height
2) See "Design Criteria" for specifications.
3) Wall weight/ ft. @ maximum height � 3810 #/ft. as follows:
Stone designations refer to minimum depth x height in inches per lineal foot of wall.
4) Reduce Wall height by reducing top courses @ reducing wall heights.
5) Note minimum toe burial depth =6".
6) 24" wide free draining granular backfill zone.
7) 4" 0 Drain tile wrapped with geotextile fabric and sloped to daylight.
8) 6oz commercial landscape fabric
Client: Boulder Images, Inc.
Project: Heritage Landing Wall Repair 4(C) 8 .5� wall
By: MJP Date: 08/15/2012 3 ' 1 SCALE: 3/16" =1'-0"
MJP Associates, Itd. - 651-426-7037
5 Supporting Documentation
5.1. Soil Property Data
5.2. (4) Course Wall Geometry & Design Schematic
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H ; � �
des H C2 W2 '
�; Drain tile sloped to daylight
C1 • I=
W1 ' _�����
— --- -- ----------------
D = _ _
— — —
Assumed Poi It — III-- IIIII
Of Rotation = IIIII= IIIII Base
Notes:
1) Batter angle is "Theta"
2) Courses are assumed to have the equivalent weight of a cube as shown.
3) Moment Arm for Course(i) above the base course =[C2+C3+...C(i) x tan(theta))
+ 1 /2 C(i)]
4) Offset =(Hdes - C1) x Tan(theta)
5) Size depends on orientaion of upper stones. Compare area from X-section to
calculated value.
Client: Boulder Images, Inc.
Project: Heritage Landing Wall Repair �4 (C) Wall
BY: MJP Date: 08/15/2012 5.2
NOT TO SCALE
MJP Associates, Itd. - 651-426-7037
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Client: Boulder Images, Inc.
Project: Heritage Landing Wall Repair 5. Soil Properties
By: MJP Date: 08/15/2012 -NA-
MJP Associates, Itd. - 651-426-7037
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1
Boulder Wall Construction
Observation Summary
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Boulder Wall — Heritage Landing
4179 Heritage Lane
City of Prior Lake
Hennepin County, MN
Prepared for
The City of Prior Lake
Prepared by
WSB and Associates
-
�SB
r
Rc A�.uxiutcs. /nc.
October 29, 2012
.
Wall Review
Date of initial construction of boulder retaining wall is unknown. Recent
recommendations and observations indicated several deficiencies with the wall.
It was determined that the wall should be reconstructed. Demolition of the wall
began on October 9 2012. The reconstruction of the boulders, backfill, and soil
fabric portion of the wall was completed on October 10 2012.
w� � °�
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The wall is located approximately 150 feet to the east of the intersection of
Village Lake Drive and Heritage Lane. The wall repair was approximately 25 feet
in length and 8 feet in height. Upon arrival for inspection, the base layer had
been placed and the backfill had been excavated to 2 feet from the back face of
the boulders.
Heritage Wall Review — Heritage Lane
City of Prior Lake, Hennepin County, MN
WSB PROJECT NO. 01905-050 PAGE 1
Field inspections of soils were made by Braun Intertec Corp. Soil samples were
taken from the backfill and examined. Braun determined the friction angle for the
back fill to be no less than 27.5°, the bearing capacity to be at least 2000 psf and
the in place soil density to be in a range of 111 pcf to 127pcf. Compaction tests
were perFormed at various locations. High compaction results were noted
throughout the wall reconstruction which matched or surpassed those in the
specifications.
�,.
� -
The design used a soil density of 110pcf for the retained soil. We noted the
difference in soil density to the contractor and recommended soil correction to
the backfill. At approximately 4 ft in height from the base additional soil was
removed from the back of the excavation. The additional excavation amounted
to 4 feet from the back face of the boulders. Structural fill was placed in all the
excavated sections. Braun had tested the structural fill and iYs in place density
ranged from 109pcf to 112pcf, matching requirements of the design provided.
Heritage Wall Review — Heritage Lane
City of Prior Lake, Hennepin County, MN
WSB PROJECT NO. 01905-050 PAGE 2
f
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A complete record of field measurements, testing and the design are attached in
the appendix.
Heritage Wall Review — Heritage Lane
City of Prior Lake, Hennepin County, MN
WSB PROJECT NO. 01905-050 PAGE 3
.
Appendix
Retaining Wall #4 Review - Hickory Shores Development
City of Prior Lake, Hennepin County, MN
WSB PROJECT NO. 07905-020
,
Field Measurements and Observations bv Aaron Nelson PE
10/10 — Excavation: Approximately 25 feet along the wall, 8 feet in height, and
initially 2 feet from the back face of the boulders corrected to
4 feet at mid height.
Aggregate: approximately 6" of class 5 base below the boulders
Retaining Wall #4 Review - Hickory Shores Development
City of Prior Lake, Hennepin County, MN
WSB PROJECT NO. 07905-020
�
♦
, III II
� � Braun Intertec Corporation Phone: 95
� 11ooi Hampshire Ave S Fax: 95
Dlinneapolis, ASN 5543$ Web: braunintertec.com
October 24, 2012 Project BL-12-05823
Mr. Jason Wede)
WSB & Associates, Inc.
701 Xenia Ave. S., Suite 300
Minneapolis, MN 55416-1030
Re: Summary Report
Heritage Landing Boulder Wall Replacement
4179 Heritage Lane
Prior Lake, Minnesota
Dear Mr. Wedel:
In accordance with our discussions, we have completed the soil observations and tests in general
compliance with your letter to the City of Prior Lake dated August 20, 2012. We have completed the
tests you asked for in Item 3 of that letter:
3. Geotechnical Observation, Analysis & Testing
a. Observe and document bearing soils below each of the retaining walls.
b. Document placement and provide compaction testing.
c. Provide final soil compaction report.
The provided plans and specifications prepared by M1P Associates plans were used for our soil test
parameters and site inspections.
Summary of Site Inspections and Material Observations and Tests
Soil Evaluation and Testing
Based on the design information provided, we were asked to verify the following soil parameters:
1. The wet unit weight of the retained soil.
2. The soil friction angle of the retained soil.
3. Assumed soil bearing capacity of 2000 pounds per square foot (psfl.
During construction we were also asked to perform random soil compaction tests to verify a minimum
soil compaction level of 95�'0 of the standard proctor density.
BRauN
AA/EOE Prouiding engineer-ing and environmental sbfutib�StTtL`e�9,�
�
.
WSB & Associates, Inc.
Project BL-12-005823
October 24, 2012
Page 2
On October 1 and 2, 2012 we visited the site to perform initial soil testing. We obtained samples of the
backfill soii that was in piace behind the boulder wall. We also perFormed nuclear density tests to obtain
information regarding the inplace moist density of the backfill soil. The existing backfill soil types ranged
from silty sand to clayey sand. Some sand was also found near the wall. The soil's moist density ranged
from 111 pcf to 127 pcf and the moisture contents ranged from 11.596 (sand) to 199� (clayey sand). Based
on the soil types found about 2 feet behind the backs of the boulders, it appeared a soil friction angle of
27.5 degrees could be achieved if the soils were properly compacted.
These soil parameters were passed along to WSB and we understand the wall designer was informed of
these in-situ soil parameters and reviewed his design against these values.
The existing boulder wall section (that was to be rebuilt) was taken down prior to October 10, 2012. The
soils exposed at the wall foundation elevation were visually evaluated on October 10, and the �xcavation
bottom was evaluated using hand auger borings. The hand auger borings were drilled with a 11/2-inch-
diameter hand auger. The borings were advanced in 2- to 4-(nch increments to depths of 2 to 4 feet below
subgrade elevations or excavation bottoms (shallower penetrations typically occurred where larger gravel,
cobbles and boulders were present). The auger was then withdrawn from the borehole to obtain cuttings.
The soils encountered in the borings were classified in general accordance with ASTM D 2488, "Description
and Identification of Soils (Visual/Manual Procedures)." Estimates of soil consistency and density were �Iso
evaluated based on resistance to penet�ation of the hand auger, and the turning resistance.
The soils at the base of the excavation consisted of about a 6 to 12 inch layer of recently placed Class 5
aggregate over silty sand soils. Based on the effort required to advance the hand boring, the soils were
judged to be dense to very dense. This soil sequence was judged suitable for support of the estimated
2,000 psf soil bearing pressure from the boulder walls. A copy of our Daily Report from that site visit is
attached.
As the boulder wall reconstruction was performed we periodically performed soil compaction tests in the
wall backfill which consisted of imported sand. Seven tests were taken at various elevations and
locations behind the wall. The test results are attached and indicate that all the tests met or exceeded
the recommended soil compaction levels.
We also noted that the width of the zone of sand backfill was increased in lateral thickness (behind the
wall) from a thickness of about two feet at the wall base, to a thickness of about four feet at a height of
four feet above the base and higher.
General
In performing its services, Braun Intei'tec used that degree of care �nd skill ordinarily exercised under
simflar circumstances by reputable members of its profession currently practicing in the aame locality. Mo
warranty, express or implied, is made.
,
WSB & Associates, Inc.
Project BL-12-005823
October 24, 2012
Page 3
Thank you for the opportunity to provide the special inspection and testing services for this proJect. After
review of the attached Special Inspection Final Report, if you have any questions or require additional
information, please call Gregg landro at 952.995.2270.
Sincerely,
BRAUN INTERTEC CORPORATION
Professional Certi�cation:
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 State of Minnesota.
� �
�. Jan , PE, PG
Vice President — Principal Engineer
License Number: 18221
r �
�
Henry V oo, PE
Associate - Senior Engineer
Attachments:
Daily Observation Notes from 10/10/12
Soil Compaction Tests
Soil Proctor
c: Aaron Nelson; WSB & Associates, Inc.
Summary Rpt— Heritage landing Boulder Wall
�
v Page � of �
B R A 1� N cmt-dson 4/07
i NTE RTEC Daily Soil Observation Notes
Project No.: __ /J L��Z"�.5�� Date: ___ l�6�/ Z'
Report No.:
Proiect Name: ��6�/i'�OGE" �NN�1NG ^/.�c�E� �?L(. project Locafion: 1i�L�'Xl /'✓06F LA�vF / Lp,CE
Client: `✓�� Temp/Weofher: .�u�� Liii,vDt�
Project Manoger: � vr�Al��O Time Arrived: _ 7'� U Departed: d• 30
.
Areas Observed: O Building Pad O House Pad O Roadway p Pkng/walks O Footing
O Proof Roll � Other (describe) /�U�c,T�pn� oF /�auc��c w�vc,c, Fac�.,ip,+tio� S�Ll'
Soil report avnilable� Q Yes No Report reviewed� Q Yes �[ No RepoH prepored by: �•f �oPy
Benchmark: �- Benchmark elevption: Benchmark provided by:
Finish fioor elevotion: --- Bottom of footin9 elevation: BoHom of excavation elevation:
Approved plans available? Specified compoction: �f�� S� Fill source:,� p�-� SjqNJ
Oversizing appears adeq�ate� � NA � Yes � No Soils observed agree with Soils report� ..---- Q Yes Q No
Soils appear adequafe for design loads� O Yes p No Proposed project bearing capaciiy (ps�:
Contractor notified of results� O Yes p No Name of person notified:
Was a copy of this report lefl on site� � Yes � No If so, whom was it submitted to�
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B�un Intertac Corporstion
Minneapolis Laborotory
� Phone: 852-995-2000
Proctor Test Report Report No .: PTR :w�z-oo�4aa-s�
issue No.• 1
Client Jason Wedel Laboratory Resulta Reviewed By.
WSB 8 Associates, inc.
701 Xenia Ave S, Ste 300
Minneapolis, MN 55416-1030 ��� ����r/���
ProJect: BL-12-05823
Heritaga La�ding - Boulder Wall Repair
4179 He�taye Lane
Prior Lake, MN 55372 Kanhai Seokaran
Proctor Supervisor
PM: Greqg R Jandro; yjandro Braunlntertec.com Dats of Issua: 10J24/2012
Sampie Detaiis
Sampie ID: W1 2-00744 5-5 7
Alt�mate Sample ID: P-01
Sampled By: Dustin Connor
Date Sampled: 10/09/2012
Date Received• 10/09/2012
Date Tested: 1011 �/2012
Source: Import�d
Sample Location: Stockpile
Ory-Denstty • Moisture Cantent Relattanship MnDOT 1305
113.5 � � _.�.,_ � __.s ____ �. ._ ._n.� _ ___ ____.�
ll�.o __ _- ��� v�� �� Maximum Dry
__�._ �_:�_-�-��
� � � Density (Ib/ft'): 112.9
uzs --- - - - � . _ f _ {. . !
iiz.o - - � � - {- - �
� �� I Optimum Moisture
i " s i -- '- 1� : � Content (•/.): 14.0
iu .o _ _ . _... _.__ � _ . . ._ .__l_ _._.._ ._ _;
, i
� � -- Zero Alr Vads Matarial on 3/4 sieve: replaced
I uos --------.. . __ .___._. ___.. _�__�_ _.__.._
iio.o ----- -- ---- � -- __._ l v_ Matsrial ratained on �I`4 (4'0): 3.0
io9s - -_i -�- � � Visual Descrlption:
_ - -- --t -
io9.o - - � - - � {
�_�!� � 1 I SP Poorly Graded Sand
ioes - ! _ .___.__..�
ioa.o - - -!- - � - - � - - �
Technician: 13685
o.o s.o io.o is.o �o.o zs.o
Trial 1 2 3 4 5 6
Mold & Wet Soil, p 6004.0 6068.0 6140.0 6119.0
Mold Weight, g 4197.0 4197.0 4197.0 4197.0
Mold Volume, cc 941.2 941.2 941.2 941.2
Wet Density, pcf 119.5 723 7 128.4 127.1
Wet Soil & Cont, g 747.6 685.1 753.0 T31.9
Dry Soil Q� Cont, p 701.5 630.9 691.5 658.9
Container, g 244.2 17B.3 248.5 225.b
Moisture Content, % 10.1 11.9 13.9 16.8
Dry Density, pcf 108.5 110.5 112.8 108.7
Comments
The 200 wash vaiue equals 0.3%.
Page 1
�
�
�,
MJP Associates, Itd. DATE: 8/14/12
4362 Oakmede Lane Client: Boulder Images
White Bear Lake, MN 55110 Project: Heritage Landing
P:651-426-7037 * F:661-426-6643 Element: 8.5' Wall
Wall Criteria ln ut
Soil Properties & Geometry Courses
Soil Wt. (pcf) 110.00 (M) "D" (ft) "H" (ft) Wt. (Ibs/ft)
Stone Wt. (pcf) 165.00 (M) C1 (bot.) 2.50 2.50 1031
"Phi" Angle (deg) 34.00 C2 2.50 2.50 1031
Base Friction "f' 0.50 (M) C3 2.00 2.00 660
Theta (deg) 12.00 (M) C4 2.00 2.00 660
"Htoe" (ft.) 0.50 (M) C5 0
Surcharge (psf) 0.00 (M) C6 0
Backfill Slope 0.00 C7 0
Axsec (sq.ft.) 3.89 (M) C8 (top) 0
Courses 4
Wall Criteria Out ut
Geometry Acting Forces
F1 (Ret.) F2 (Surch) Arm1 (ft) Arm2 (ft) Mot (ftlbs)
Ka - active pres 0.28 Fh - Lateral Load (plf) 1259 0 3.00 0.00 3778
Kp - passive pres. 3.54 F2 657 0 2.17 0.00 1423
Hdes- des. ht. (ft) 9.00 F3 249 0 1.33 0.00 332
Hs surcharge (ft) 0.00 F4 62 0 0.67 0.00 41
H- net ht. (ft) 8.50 F5 0 0 0.00 0.00 0
Offset (ft) 1.38 F6 0 0 0.00 0.00 0
Soil Base Width (ft) 0.88 F7 0 0 0.00 0.00 0
Acaic (sqft) 3.97 F8 0 0 0.00 0.00 0
A (sq.ft.) 3.89
Ww -Wall Weight (plf) 3383
Ws - Soil Weight (plf) 428
Wt - Gravit Load if 3810
Resistin Forces & Stabilit Checks
FSmin = 1.50
Ff (Ibs) Pp (Ibs) SLR (Ibs) FS Sliding Mr (ftlbs) Mr-sum FS OT
C1 (Full Wall) 1905 49 1954 1.55 1289 5989 1.59 OK
C2 1411 0 1411 2.15 1837 4700 3.30 OK
C3 792 0 792 3.18 1291 2863 8.63 OK
C4 396 0 396 6.37 1572 1572 37.91 OK
C5 0 0 0 NA 0 0 NA OK
C6 0 0 0 NA 0 0 NA OK
C7 0 0 0 NA 0 0 NA OK
C8 0 0 0 NA 0 0 NA OK
DESIGN CRITERIA IS SATISFIED