Purpose: The purpose of this manual is to provide information and criteria pertinent to the design and selection of mechanical and electrical systems for flood-control pumping stations. Elements discussed include equipment requirements, design memorandum, Operation and Maintenance manuals, pumping equipment and conditions, discharge system, engines and gears, pump drive selection, pump and station hydraulic tests, earthquake considerations, power supply, motors, power distribution equipment, control equipment, station wiring, station and equipment grounding, surge protection, electrical equipment, environmental protection, station service electrical system, and station service diesel generator.