1c. Koehnen Area/Yosemite Ave Street Reconstruction Project 07-01
CITY OF
CHANHASSEN
7700 Market Boulevard
PO Box 147
Chanhassen, MN 55317
Administration
Phone: 952.227.1100
Fax: 952.227.1110
Building Inspections
Phone: 952.227.1180
Fax: 952.227.1190
Engineering
Phone: 952.227.1160
Fax: 952.227.1170
Finance
Phone: 952.227.1140
Fax: 952.227.1110
Park & Recreation
Phone: 952.227.1120
Fax: 952.227.1110
Recreation Center
2310 Coulter Boulevard
Phone: 952.227.1400
Fax: 952.227.1404
Planning &
Natural Resources
Phone: 952.227.1130
Fax: 952.227.1110
Public Works
1591 Park Road
Phone: 952.227.1300
Fax: 952.227.1310
Senior Center
Phone: 952.227.1125
Fax: 952.227.1110
Web Site
www.ci.chanhassen.mn.us
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MEMORANDUM
TO:
dO,
Paul Oehme, City EngineerlDir. of Public Works '\ (
Alyson Fauske, Assistant City Engineer (X(
January 8, 2007 &i
FROM:
DATE:'
SUBJECT: Koehnen/Yosemite Reconstruction, Project No. 07-01:
Approve Plans and Specifications; Authorize Ad for Bids
BACKGROUND
On September 26, 2005, Council authorized the preparation of the 2006 Street
Improvement feasibility report.
On January 9, 2006, Council accepted the feasibility report and called for the
public hearing for the project.
On January 23, 2006, Council held the public hearing for the Koehnen area
reconstruction project.
In April, 2006, it was determined that the reconstruction project could not be
completed until late fall, 2006 due to the MnDOT State Aid Review process for
the Yosemite A venue portion of the project.
On April 10, 2006, Council approved deleting the Koehnen area reconstruction
from the 06-01 project.
On September 25, 2006, Council approved the Professional Services Agreement
Addendum.
On November 8, 2006, staff hosted a neighborhood meeting
On November 13, 2006, Council authorized and accepted the feasibility study and
called the public hearing.
On November 27, 2006, Council held the public hearing and authorized
preparation of plans and specifications.
DISCUSSION
These proposed street improvements were identified using the City's Pavement
Management program and because of the utility problems in the area.
Streets are recommended for reconstruction in the Koehnen area. These streets
are 35 years old and are in need of replacement and do not have concrete curb and
The City of Chanhassen . A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A great place to live, work, and play.
Paul Oehme
January 8, 2007
Page 2
gutter. The reconstruction area includes approximately 1.05 miles of street,
including West 63rd Street, Koehnen Circle East, Koehnen Circle West, Cardinal
Avenue, Blue Jay Circle, Audubon Circle and Yosemite Avenue (from 6440
Yosemite A venue to the City limits). Concrete curb and gutter will be included in
the street design. Also, the street improvement project will include replacement
of all watermain, replacement of some sanitary sewer, installation of storm sewer
and construction of storm water treatment ponds.
The watermain in this area is cast iron which has resulted in 23 documented
watermain breaks. It is recommended to replace the watermain along with the
water services in the right-of-way.
Televising of the sanitary sewer indicates that portions of this utility are "egged",
sagging and/or cracked. Bolton & Menk, the consultant engineer the City has
contracted for this project, recommends that portions of the sanitary sewer
exhibiting "extreme" sagging or segments that are cracked be replaced.
Storm sewer will be installed and will outlet to one of three ponds that will be
constructed in conjunction with the project. The ponds will treat the runoff before
discharging to other water bodies.
Forty percent (40%) of the street rehabilitation costs are proposed to be assessed
to the benefiting property owners within the project area. The preliminary
assessment amount for the Koehnen area is $7,100/lot and is proposed to be
assessed over a 10-year period at 6% interest. The total estimate assessment
amount is $468,600.00.
Funding for this project is proposed as follows:
ESTIMA TED
ITEM PROJECT FUNDING
COST
$ Revolving assessment
Streets $ 1,681,888.00 1,200,000.00 fund
500,000.00 Municipal State Aid
Storm Sewer 599,750.00 610,000.00 Storm Sewer Utility Fund
S ani tary
Sewer 191,808.00 230,000.00 Sanitary Sewer Fund
Reconstruction
Watermain 610,284.00 660,000.00 Water Utility Fund
Reconstruction
TOTAL $ 3,083,730.00 $ 3,200,000.00
Paul Oehme
January 8, 2007
Page 3
The anticipated schedule of the project is as follows:
Neighborhood Meeting
Assessment Hearing! A ward Contract
Start Construction
Substantial Completion
March, 2007
April, 2007
May, 2007
August, 2007
MnDOT State Aid has received the plans and specifications for the Yosemite
portion of the project. Staff has not received any comments.
RECOMMENDA TION
Staff recommends that City Council approve the plans and specifications and
order the ad for bids for City Project No. 07-01.
c: Marcus Thomas, Bolton & Menk
G:\ENG\PUBLIC\07-01 KoehnenYosmite Road Imp\OI-08-07 approve P&S order ad for bid.doc
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2007 Street Reconstruction
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-$- Existing Street Lights Proposed Ponds
=-=- Proposed Retaining Wall ~ Wetlands
_111_' Existing Right of Way ~ Proposed Streets to be Reconstructed
September 1 9, 2006
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