IFB-CrestviewDitchImprovements16 - Crestview Ditch Improvements

Summary of Specifications:
The Crestview Ditch Improvements is a drainage infrastructure improvements project located in Durango, CO that will serve to reduce downstream flood risk and alleviate large scale erosion. Construction activities will include the installation of roughly 110 LF of large diameter (60 inch +) closed conduit, a large concrete structure, and significant earthwork related to the construction of these features. The closed conduit will be placed within an existing drainage conveyance requiring large grade changes and site limitations. The conduit will outlet to a large concrete energy dissipation structure discharging back to the existing channel, adjacent to an existing wetland area downstream of the project improvements. Construction activities will be limited to City-owned property and an existing drainage easement located within a residential neighborhood resulting in very limited site access and construction staging areas.