Report of findings from various tests: "Model investigations of the surges occurring in sewer lines and of the flow conditions in a typical pumping plant, used to dispose of drainage during high river stages, were conducted as a part of the local flood protection project for Louisville, Kentucky. Studies conducted on a 1:32 scale simplified model of the Southern Outfall Sewer provided general information on the relative amount of relief from surges to be expected from the pumping station and manholes in the sewer line upstream" (p. v).