2008 - 2017 Capital Improvement Program

Project #8028, Blue Lake System Improvements  

Description:

This project will provide improvements to meet the long-term conveyance capacity, reliability, and rehabilitation/replacement needs of the Blue Lake Interceptor System. This system includes gravity sewers, 29 lift stations, and single forcemains from each lift station. Where cost effective, such as in the Victoria area, some lift stations will be replaced by deep gravity sewers using tunnel construction methods. In some cases, small lift stations will be consolidated. The remaining lift stations will be expanded and rehabilitated/replaced as necessary. Single forcemains will be upgraded to dual forcemains. Gravity sewers will be rehabilitated and expanded as necessary. The four major project areas are Victoria, Excelsior, Mound, and Wayzata. Individual projects currently underway include the Smithtown Road Interceptor Improvements and the Victoria/St Bonifacius Lift Station Tunneling projects.

Project Map

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Purpose and Justification
:

Evaluation of the Blue Lake Area Interceptor System indicates that the existing facilities cannot convey all of the wastewater that will ultimately be generated from within the Blue Lake sewershed. The limit to growth is the capacity of 15 of the 29 pump stations, which are or will be overloaded during extreme wet weather events. In addition, many of the lift stations and associated forcemains need to be upgraded to meet current MCES design standards for reliability, redundancy, odor, and corrosion control. Significant improvements are required primarily in the parts of the system that are 20 years old or older.

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Project Authorization:

Project Schedule

Authorizations

Start

End

Funding

Status

Prelim. Engr.

Jan-03
Nov-09

$5,250,000

Approved

Design

Oct-04
Jun-09
$16,450,000

Approved

Construction

Jan-06
Dec-16

$126,300,000

Approved

Prior Authorization:

$65,000,000

2008 Budget Adjustment:

$18,000,000

Total 2008 Authorization:

$83,000,000

Future Authorizations:

$81,000,000

Total Project Cost:

$164,000,000

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   Projected Cash Flow:

Authorized

Future

Total

Prior to 2008
$8,705,000
$0
$8,705,000
2008 Budget
11,000,000
0
  11,000,000
2009
28,000,000
0
28,000,000
2010
30,000,000
0
30,000,000
2011
5,000,000
15,000,000
20,000,000
2012
0
15,000,000
15,000,000
2013
0
15,000,000
15,000,000
2014
0
15,000,000
15,000,000
2015
0
15,000,000
15,000,000
2016
0
6,000,000
6,000,000
2017
0
0
0
Post-2017
0
0
0
Contingency
295,000
0
295,000
Totals
$83,000,000
$81,000,000
$164,000,000

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Impact on O&M Costs:

May result in the elimination of some pumping stations in the Blue Lake sewershed and consequently may reduce O&M costs.

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