Agenda Date: 10/17/2017
Subject:
Title
A resolution authorizing an amendment to the Intergovernmental Agreement between the City and the Urban Drainage and Flood Control District for stream stabilization improvements on Jackass Gulch.
Body
Presented By:
Keith Reester, Acting Public Works Director
POLICY QUESTION:
Does city council wish to amend Intergovernmental Agreement 14-05.06 to commit additional funds to continue design and construction of improvements on Jackass Gulch?
BACKGROUND:
Jackass Gulch is a natural stream running westward along the north side of West Mineral Avenue, from the High Line Canal to the railroad corridor. West of the railroad corridor the drainage way is contained in a storm sewer pipe, which drains to the South Platte River.
Construction was recently completed on stream enhancement of the South Platte River in South Platte Park, of which Jackass Gulch is tributary. There is concern these river improvements may be jeopardized by relatively high volumes of sediment entering the river from erosion along Jackass Gulch.
In 2014, the Urban Drainage and Flood Control District (UDFCD) and City of Littleton entered into Intergovernmental Agreement (IGA) 14-05.06 to begin the design, right-of-way acquisition, and construction of stabilization to a portion of Jackass Gulch, located adjacent to Long Avenue, behind the residential properties along West Jamison Way. This reach of the gulch was determined to be most urgent for needed stream stabilization improvements, with residential properties at risk from migrating eroding channel banks.
It is proposed to amend the Intergovernmental Agreement (IGA) with UDFCD for the next phase of design and construction to stabilize Jackass Gulch.
UDFCD will manage the project, with Littleton assistance.
STAFF ANALYSIS:
The residents along this reach of Jackass Gulch have expressed serious concerns over the proximity and rate of migration of the erosion in Jackass Gulch next to their homes....
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