Flood Risk Reduction Dams

17,618 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Big Indian Creek 16-B Gage	Low Hazard	26 ft	1972	Earth	Nebraska
Big Indian Creek 16-C Gage	Significant Hazard	35 ft	1974	Earth	Nebraska
Big Indian Creek 17-A Jefferson	Low Hazard	31 ft	1968	Earth	Nebraska
Big Indian Creek 17-B Jefferson	Low Hazard	26 ft	1965	Earth	Nebraska
Big Indian Creek 2-A Gage	Low Hazard	41 ft	1972	Earth	Nebraska
Big Indian Creek 2-B Gage	Low Hazard	43 ft	1965	Earth	Nebraska
Big Indian Creek 3-A Gage	Low Hazard	32 ft	1966	Earth	Nebraska
Big Indian Creek 5-A Gage	Low Hazard	32 ft	1966	Earth	Nebraska
Big Indian Creek 5-D Gage	Low Hazard	34 ft	1966	Earth	Nebraska
Big Indian Creek 5-E Gage	Low Hazard	31 ft	1972	Earth	Nebraska
Big Indian Creek 5-F Gage	Low Hazard	34 ft	1972	Earth	Nebraska
Big Indian Creek 6-B Gage	Low Hazard	36 ft	1968	Earth	Nebraska
Big Indian Creek 6-E Gage	Low Hazard	32 ft	1965	Earth	Nebraska
Big Indian Creek 6-F Gage	Low Hazard	31 ft	1965	Earth	Nebraska
Big Indian Creek 6-G Gage	Low Hazard	34 ft	1968	Earth	Nebraska
Big Indian Creek 7-1-A Gage	Low Hazard	23 ft	1966	Earth	Nebraska
Big Indian Creek 7-1-B Gage	Low Hazard	24 ft	1966	Earth	Nebraska
Big Indian Creek 7-A Jefferson	Low Hazard	42 ft	1968	Earth	Nebraska
Big Indian Creek 7-B Gage	Low Hazard	30 ft	1966	Earth	Nebraska
Big Indian Creek 8-B-1 Jefferson	Low Hazard	19 ft	1966	Earth	Nebraska
Big Indian Creek 8-E Jefferson	Low Hazard	29 ft	1973	Earth	Nebraska
Big Indian Creek 8-F Jefferson	Low Hazard	28 ft	1973	Earth	Nebraska
Big Indian Creek 8-G Jefferson	Low Hazard	32 ft	1973	Earth	Nebraska
Big Indian Creek 9-B Jefferson	Low Hazard	25 ft	1965	Earth	Nebraska
Big Lake Dam Cobb	Unknown	20 ft	1936	Earth	Georgia
Big Muddy Creek FRS 4 Logan	Low Hazard	33 ft	1973	Earth	Kentucky
Big Muddy Creek FRS No 1 Butler	Low Hazard	40 ft	1968	Earth	Kentucky
Big Muddy Creek FRS No 2 Butler	Low Hazard	30 ft	1972	Earth	Kentucky
Big Muddy Creek FRS No 3 Butler	Low Hazard	32 ft	1964	Earth	Kentucky
Big Nance Creek W/S Dam Site 4 Lawrence	Low Hazard	50 ft	1987	Earth	Alabama
Big Park Watershed Site A-1 Crawford	Low Hazard	32 ft	1970	Earth	Iowa
Big Park Watershed Site A-2 Crawford	Low Hazard	45 ft	1960	Earth	Iowa
Big Park Watershed Site A-3 Crawford	Low Hazard	41 ft	1970	Earth	Iowa
Big Park Watershed Site A-4 Crawford	Low Hazard	32 ft	1970	Earth	Iowa
Big Park Watershed Site C-1 Crawford	Low Hazard	43 ft	1962	Earth	Iowa
Big Park Watershed Site C-2 Crawford	Low Hazard	36 ft	1962	Earth	Iowa
Big Park Watershed Site C-3 Crawford	Low Hazard	35 ft	1962	Earth	Iowa
Big Park Watershed Site C-4 Crawford	Low Hazard	33 ft	1962	Earth	Iowa
Big Park Watershed Site D-1 Crawford	Low Hazard	43 ft	1960	Earth	Iowa
Big Park Watershed Site D-2 Crawford	Low Hazard	36 ft	1960	Earth	Iowa
Big Park Watershed Site D-3 Crawford	Low Hazard	36 ft	1960	Earth	Iowa
Big Park Watershed Site D-4 Crawford	Low Hazard	39 ft	1960	Earth	Iowa
Big Park Watershed Site F-1 Crawford	Low Hazard	35 ft	1965	Earth	Iowa
Big Park Watershed Site F-2 Crawford	Low Hazard	45 ft	1970	Earth	Iowa
Big Park Watershed Site F-3 Crawford	Low Hazard	33 ft	1965	Earth	Iowa
Big Prairie Creek W/S Dam Site 11 Perry	Low Hazard	30 ft	1965	Earth	Alabama
Big Prairie Creek W/S Dam Site 12 Perry	Low Hazard	31 ft	1964	Earth	Alabama
Big Reedy Creek FRS No 8 Grayson	Low Hazard	29 ft	1965	Earth	Kentucky
Big Reedy Creek FRS No 9 Edmonson	Low Hazard	20 ft	1964	Earth	Kentucky
Big Rock Detention Dam Valley	Low Hazard	—	1961	Gravity	Montana