1b Watermain Improvements in Highcrest Meadows Development
CITY OF
CHANHASSEN
7700 Market Boulevard
PO Box 147
Chanhassen, MN 55317
Administration
Phone: 952.227.1100
Fax 952.227.1110
Building Inspections
Phone: 952.2271180
Fax 952.227.1190
Engineering
Phone: 952.227.1160
Fax: 952.2271170
Finance
Phone 952.2271140
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Park & Recreation
Phone 952.227.1120
Fax 952.2271110
Recreation Center
2310 Coulter Boulevard
Phone: 952.227.1400
Fax: 952.227.1404
Planning &
Natural Resources
Phone: 952.2271130
Fax 952.2271110
Public Works
1591 Park Road
Phone: 952.227.1300
Fax: 952.2271310
Senior Center
Phone: 952.227.1125
Fax 952.227.1110
Web Site
www.ci.chanhassen.mn.us
1.1
-
MEMORANDUM
TO:
Todd Gerhardt, City Manager
Paul Oehme, Dir. of Public Works/ City Engineer \Y.O .
~&
August 8, 2005
FROM:
DATE:
SUBJ:
Approve Expenditure of Funds for Trunk Watermain
Improvements in the Highcrest Meadows Development
Project Nos. 05-07,05-08,05-09
REQUESTED ACTION
Approve expenditure of funds for trunk watermain improvements in the Highcrest
Meadows Development.
DISCUSSION
A 12" diameter trunk watermain and 12" diameter raw watermain are proposed to
be constructed in conjunction with the Highcrest Meadows First, Second & Third
Additions. The watermain improvements were included in the Highcrest
Meadows development contracts and site approval conditions approved by
Council.
The trunk watermain will be part of the looped watermain system to provide
residents with adequate potable water supply and fire suppression. The
watermain extension was recommended in the 1998 and 2003 Water Master Plan
and was budgeted in 2005 in the 2005-2009 CIP, Project No. W-006. The cost of
materials for the trunk watermain oversizing within the Highcrest Meadows
development is $50,975.63 and is based on the bid unit price. No engineering
costs will be charged to the City for this work. The trunk watermain
reimbursement is the cost difference between a 12" diameter trunk watermain and
an equivalent 8" diameter lateral watermain; the minimum diameter of watermain
pipe needed to serve the development.
City Council is considering a west water treatment plant that is scheduled for
construction in 2009. The treatment plant will need to have the raw watermain
extended from the wells to the future treatment plant. The proposed raw
watermain, or well collection pipe, will convey untreated water from Well No.
8 to the future west water treatment facility. The collection pipe will be extended
through the Highcrest Meadows development and will connect to a future raw
watermain proposed to be constructed through the Lake Harrison development.
Other alignments along existing street right-of-way would cause significant
disruption to the property owners and the traveling public and would be more
The City 01 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.
Todd Gerhardt
August 8, 2005
Page 2
expensive; therefore, a portion of the raw watermain should be constructed with
the Highcrest Meadows development. A portion of the raw watermain will be
directional-bored to minimize tree loss along the northeast property line. The cost
to construct the raw watermain is $110,702.00, which includes $3,000.00 in
engineering costs. Staff recommends reimbursing for engineering costs
associated with the raw watermain since this is a system-wide improvement.
The costs were budgeted in the 2005 CIP, Project No. W-006. The total cost for
the water system improvements is $161,677.63 and is within the $220,000 budget.
This cost for the improvement will be 100% funded out of the Water Utility Fund.
Attachment
c: Bill Coffman, Coffman Development
g:\eng\projects\highcrest meadows (formerly yoberry farm)\trunk watermain bkgd 080805.doc
Highcrest Meadows
Current Watermains
W+E
S
6"~16"
~8" ~18"
_~'\12"~24"
August 2, 2005
G:lEngUo/eenlEngProjlPau/lHighcrest