This Project replaces an inadequate trapezoidal concrete ditch and arch culverts with three box culverts spanning 620 linear feet. This will provide a 25-year level of flood protection and increase the capacity of the reach from less than 400 cfs to 2,810 cfs addressing chronic flooding of West Antioch Creek through the installation of three 14’ by 7’ Caltrans Standard Box Culverts. These box culverts will increase the storm water capacity of the creek.
City of Antioch
Manage stormwater runoff to reduce flood damage and where feasible, provide other benefits, including
groundwater recharge, water quality improvement, and ecosystem restoration.
Complete and Fully Paid