Purpose: This manual provides guidance for the design of reinforced, concrete lined flood control channels which convey rapid and tranquil storm water flows to prevent flooding. This guidance presents provisions for coordinating the disciplines involved in the design of channels, selecting channel type, and identifying the critical aspects of designs which require quality assurance inspection during construction. Channel design involves determining the overall channel configuration including appurtenant structures, designing reinforced concrete structures and pavement or concrete lining, determining type and location of joints, designing subdrainage systems, and designing appropriate safety features.