Channel improvements to over 3,800 linear feet South Platte River removed approximately 365 acres of developable land from the 100-year floodplain. Improvements included channel excavation, recreation-compatible grade control structures, natural-looking outcrop jetties, surface water diversion, major underground utility protection and relocation, retaining walls, regional trail improvements, re-vegetation and wildlife habitat enhancement. The combined project also included realignment and restoration of 1,600 linear feet of Lower Lakewood Gulch into the South Platte River to create a broad-open environmentally enhanced floodplain corridor to safely manage flood flows. Improvements included a meandering low flow channel, extensive wetlands and upland vegetation, and a new trail system that vastly improves public safety and recreational opportunities.
This project was nominated by the City & County of Denver and awarded by the Colorado Association of Stormwater and Floodplain Mangers the “Colorado’s Best of 2012 Honor Award for Outstanding Achievement.” The project has also been nominated for Achievement in the 2012 APWA Drainage & Flood Control.