HomeMy WebLinkAboutPW CNT 12-08/Amendment 1 CITY OF OSHKOSH
DEPARTMENT OF PUBLIC WORKS
215 CHURCH AVENUE, P.O. BOX 1130, OSHKOSH, WI 54903-1130
PHONE: (920) 236-5065 FAX (920) 236-5068
LETTER OF TRANSMITTAL
To: Mr. Matt Yentz Date: June 19, 2012
Strand Associates, Inc. Subject: Executed Amendment
910 West Wingra Avenue James Road Area Detention Basin
Madison, WI 53715 Design
Contract 12-08
Please find: ® Attached ❑ Under Separate Cover
❑ Copy of Letter ❑ Contracts ® Amendment ❑ Report ❑ Agenda
❑ Meeting Notes ❑ Photos ❑ Mylars ❑ Change Order ❑ Plans
❑ Specifications ❑ Estimates ❑ Diskette ❑ Zip Disk ❑ Other
Quantity Description
1 Executed Amendment
These are being transmitted as indicated below:
El For Approval ® For Your Use El As Requested El For Review& Comment
Remarks:
Enclosed is a copy of the executed amendment for the James Road Area Detention Basin design.
If you have any questions, please contact us.
City Attorney's Office —Copy
City Clerk's Office—Original
cc: File—Original Signed: /
racy L aylor
1:1Engineering112-08 James Road Area Detention Basin\Project_Information\Correspondence\Transmittals\Strand LOT-Executed CA-Design Serv_6-19-12.docx
•
CONTRACT 12-08 JAMES ROAD AREA DETENTION BASIN
DESIGN AMENDMENT NO. 1
This is Contract 12-08 Design Amendment No. 1 to the Agreement made on the 26th day of
January, 2012, by and between the CITY OF OSHKOSH (CITY) and Strand Associates, Inc.
(CONSULTANT).
ARTICLE III. SCOPE OF SERVICES
Add the following services:
"12. Create a berm failure analysis model for the James Road Area Detention Basin.
13. Communicate with Wisconsin Department of Natural Resources (WDNR) on breach
geometry and criteria to use in the model.
14. Conduct topographic survey of the building corners near the 100-year flood plain
between the James Road Area Detention Basin and Clairville Road.
15. Prepare a Hydraulic, Hydrologic, and Stability Analysis Report in accordance with
WDNR regulations.
a. The report will include:
(1) Executive Summary
(2) Purpose of Report
(3) Roles and Participation of Other Agencies
(4) Data Collection Methods and Sources of Information
(5) Methodologies and Procedures
(6) Regional Flood Flows
(7) Hydraulic Modeling
(8) Comparison Table of Three Modeled Conditions
(a) Without the basin
(b) With the basin
(c) With the basin failing at a full condition
(9) Determination of Hydraulic Shadow
(10) Design Flood Flows
(11) Calculations for Routing Design Flows through the Basin
(12) Stability Analysis
(13) Tables
(14) Figures
(15) Appendices including:
(a) Plan View of the Basin
(b) Elevation View of the Basin (including breach geometry)
(c) Pertinent Elevations of the Basin
(d) Stage vs. Storage Curve and Area vs. Volume Curve
(e) Spillway Capacity Rating Curves and Calculations
(f) Downstream Water Surface Profiles and Freeway Data Tables
(g) Maps for the Three Modeled Conditions
(h) Cross Section Plots (actual cross sections compared with breach)
(i) Hard Copy and Data Disk with Computer Input and Output
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(j) Calculations
(k) Operation, Inspection, and Maintenance Plan
(I) Emergency Action Plan
(m) Opinion of Probable Costs
16. Attend up to two additional regulatory agency meetings.
17. Prepare wetland mitigation drawings for up to six acres of wetland on the James Road
Area Detention Basin site.
18. Prepare grading drawings based on survey information provided by CITY for two
CITY-owned parcels along Atlas Avenue for disposal of excess material from
construction of the James Road Area Detention Basin.
19. Conduct topographic survey and prepare intersection improvement drawings for the
intersection of the access road to the James Road Area Detention Basin and STH 91.
20. Prepare an Application/Permit for Connection to State Trunk Highway and communicate
with the Wisconsin Department of Transportation regarding the permit."
ARTICLE V. TIME OF COMPLETION
Change the Construction Completion Date from September 30, 2012, to "September 30, 2013."
(An extension of one year)
ARTICLE VII. PAYMENT
Change the Not to Exceed Fee from $155,000 to "$254,500 (Two Hundred Fifty Four Thousand
Five Hundred Dollars)." (An increase of$99,500)
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This document and any specified attachments contain all terms and conditions of the
Agreement and any alteration thereto shall be invalid unless made in writing, signed by both
parties and incorporated as an amendment to this Agreement.
In the Presence of: CONSULTANT:
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(Specify Title)
(Seal of CONSULTANT
if a Corporation.)
By:
(Specify Title)
CITY OF OSHKOSH
C By:
(Witness) Mark . Rohloff, CITY Manager
cl C. And: CIAX. I AI kjeA1
(Witness) - - -
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AP'ROVED: I hereby certify that the necessary provisions
have been made to pay the liability which will
, accrue under this Agreement.
IT Attorney
Ze_a/1
CITY C`�orrfpttrer
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