Agenda Date: 05/05/2020
Subject:
Title
Resolution 36-2020: Authorizing an Intergovernmental Agreement between the City of Littleton and the Colorado Department of Transportation for reimbursement of costs associated with the replacement of the South Windermere Street over Highline Canal bridge
Body
Prepared by:
Brent Thompson, City Engineer
PURPOSE:
To approve an Intergovernmental Agreement between the City of Littleton and the Colorado Department of Transportation for reimbursement of costs associated with the replacement of the South Windermere Street over Highline Canal bridge.
PRESENTATIONS:
Staff Presenter(s): Brent Thompson, City Engineer
Additional Presenter(s): N/A
SUMMARY:
The South Windermere Street Bridge over the Highline Canal was constructed in 1964. Since that time, the bridge has undergone periodic maintenance and repairs. CDOT conducts biennial inspections on "off-system" bridges, which are non-CDOT owned with span lengths of over 20 feet. The city has 38 bridges that qualify for this inspection. Any structures less than 20 feet in length do not qualify for this program and must be inspected by the city. Bridges are rated on a sufficiency scale of 0 to 100. The 2019 sufficiency rating of this bridge was 49.7. This bridge is considered "structurally deficient." This does not mean it is at imminent risk of failure, but that it needs to be monitored for continued deterioration.
In addition to being structurally deficient, this bridge is also considered "functionally obsolete," meaning it does not meet the current functional needs associated with the roadway. The bridge spans the Highline Canal and is immediately adjacent to the regional Highline Canal Trail. The proposed replacement bridge will have a width to match the future cross section of Windermere Street. The new bridge will allow for one through-lane in each direction and include a minimum 5' sidewalk on both sides of the bridge to accommodate accessibility to the trail...
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