Los Angeles County, CA
PACE conducted the hydraulic analysis and prepared a technical assessment report for the engineered earthen-bottom flood control channels located within the Santa Clara River and Antelope Valley Watersheds. The hydraulic analysis determined the existing flood control capacity of the soft bottom channel (SBC) reaches and determined the potential for native vegetation to remain with the soft-bottom portion of the channel or if additional hydraulic capacity was required. PACE developed hydraulic models for existing conditions of 51 SBC reaches in the Santa Clara River Watershed and one SBC reach in the Antelope Valley Watershed totaling over 18 miles of channel reaches. The evaluation required extensive field review to analyze channel hydraulic parameters with customized field data collection tools to expedite the evaluation including drone surveys. Specialized hydraulic sensitivity analysis was developed to evaluate changes in maintenance limits within the floodplain.
Los Angeles County Dept. of Public Works