2008 - 2017 Capital Improvement Program

Project #8025, Riverview Siphon (SP-230)

Description:

The project consists of improvements to the existing three-barrel Riverview Siphon (1-SP-230). The siphon extends from the siphon inlet at intersection of Wabasha St and Isabel St. (river bluff) along Wabasha St. under the Mississippi River across Raspberry Island terminating at the east bluff near Shepard Road. The proposed project consists of the replacement of the inlet structure and the siphon barrels between the inlet and the west bank of the river. The project will also renovate the siphon barrels beneath the river.

Project Map

Purpose and Justification:

The siphon was constructed in the 1930's. The original pipe beneath the river was replaced in 1978. The original piping beneath the river was abandoned. The inlet structure and siphon barrels built in the 1930's are at the end of their useful life.

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Project Authorization:

	Project Schedule		Authorizations
	Start	End	Funding	Status
Prelim. Engr.	Jan-03	Aug-04	$200,000	Approved
Design	Jun-04	Sep-07	$1,800,000	Approved
Construction	Jan-07	Dec-09	$8,000,000	Approved
Prior Authorization:			$10,000,000
2008 Budget Adjustment:			$0
Total 2008 Authorization:			$10,000,000
Future Authorizations:			$0
Total Project Cost:			$10,000,000

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Projected Cash Flow:

	Authorized	Future	Total
Prior to 2008	$2,308,000	$0	$2,308,000
2008 Budget	5,000,000	0	5,000,000
2009	2,400,000	0	2,400,000
2010	0	0	0
2011	0	0	0
2012	0	0	0
2013	0	0	0
2014	0	0	0
2015	0	0	0
2016	0	0	0
2017	0	0	0
Post-2017	0	0	0
Contingency	292,000	0	292,000
Totals	$10,000,000	$0	$10,000,000

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Impact on O&M Costs:

Impact generally minor due to the rehabilitation nature of the project.

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Metropolitan Council

2008 - 2017 Capital Improvement Program