Summary of Specifications:
Please see www.lwog.org for full bid package. The specific elements of this proposed project are to restore this 2,200 foot section of the creek from Diagonal Highway (CO 119) upstream to 87st Street (Airport Road) in order to restore geomorphic function, improve flood resiliency, facilitate restoration of recreational access, and reduce flood risks as outlined in the 2014 Left Hand Creek Watershed Master Plan. The project will include the following elements: rebuild floodplain benches/stabilize banks; narrow the channel, add riffle/pool complexity, and reestablish riparian vegetation; clean excessive sediment at road crossings in particular, and along the entire creek section as required; establish a compound channel, including a low flow channel which will promote appropriate sediment transport and a floodplain to provide conveyance of water and debris during floods; remove sediment and debris from 87th Street bridge crossing, which will enlarge and stabilize the channel and facilitate maintenance of the existing bike path underpass; and perform passive restoration and re-vegetation. The main goal of the project is to improve the geomorphic and ecologic function of the site and reduce flood risk.
Statewide