The purpose of this feasibility report is to review the existing Ballona Creek flood control system to determine possible inadequacies in flood control channels and determine the potential for flood control improvements in areas of unimproved tributaries. The primary flood problem found involved channel overflow caused by bridge constrictions in highly urbanized areas along Main Ballona creek Channel. Both stuctural and nonstructual plans were investigated. However, no plan was determined to have justification; therefore, no Federal participation in additional flood control improvements on the Ballona Creek system is recommended at this time. This report has been prepared to document the investigation and to provide local interests with the resulting information.