Central Avenue Flood Control Improvement Project

Central Avenue Flood Control Improvement Project

DFG is intending to execute a Lake and Streambed Alteration Agreement (SAA# 1600-2006-0093-R5) pursuant to Section 1602 of the Fish and Game Code to the project applicant, County of San Diego, Department of Public Works. The applicant proposes to alter the stream to construct the Central Avenue Flood Control Improvement Project. Project activities include: construction of a 450-foot-long triple 16' x 5' reinforced concrete box (RCB) culvert to replace the existing drainage channel, driveway structures, and headwall structure at Central Avenue; construction of a 24" x 24" catch basin at each of four property lines on the northern side of Central Avenue; installation of a reinforced concrete apron south of the Central Avenue crossing where the RCB culverts transition to an open channel; installation of an energy dissipater consisting of a cellular mat and turf reinforcement mat immediately downstream of the concrete apron; construction of an 8-foot-high concrete masonry unit block floodwall along the banks of the downstream earthen channel to the Dawsonia Street over-crossing; and improvements to the inlet to the existing box culvert under Dawsonia Street consisting of a 20-foot-long reinforced concrete apron preceded by approximately 130 linear feet of geofabric on the bed and armor flex on the banks.

San Diego

Unincorporated