Flood Risk Reduction Dams

17,618 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Upper Lake Fork Creek WS SCS Site 2 Dam Hunt	Significant Hazard	28 ft	1961	Earth	Texas
Upper Lake Fork Creek WS SCS Site 3 Dam Hunt	Significant Hazard	26 ft	1963	Earth	Texas
Upper Lake Fork Creek WS SCS Site 4 Dam Hunt	Low Hazard	30 ft	1961	Earth	Texas
Upper Lake Fork Creek WS SCS Site 5 Dam Hunt	Low Hazard	29 ft	1963	Earth	Texas
Upper Lake Fork Creek WS SCS Site 6 Dam Hunt	Low Hazard	30 ft	1966	Earth	Texas
Upper Lake Fork Creek WS SCS Site 7 Dam Hunt	Low Hazard	29 ft	1961	Earth	Texas
Upper Lake Fork Creek WS SCS Site 8b Dam Rains	Low Hazard	21 ft	1984	Earth	Texas
Upper Lake Fork Creek WS SCS Site 9 Dam Rains	Low Hazard	32 ft	1964	Earth	Texas
Upper Larchmont Road Dam Chemung	High Hazard	25 ft	2005	Earth	New York
Upper Las Moras Creek WS SCS Site 1 Dam Kinney	High Hazard	38 ft	1964	Earth	Texas
Upper Las Moras Creek WS SCS Site 2 Dam Kinney	High Hazard	30 ft	1964	Earth	Texas
Upper Leaf River Structure 7 Dam Smith	Low Hazard	30 ft	1974	Earth	Mississippi
Upper Leaf River Structure 9 Dam Smith	High Hazard	34 ft	1976	Earth	Mississippi
Upper Leaf Watershed Structure 5 Dam Smith	Low Hazard	29 ft	1985	Earth	Mississippi
Upper Little Black A-2 Ripley	High Hazard	60 ft	1992	Earth	Missouri
Upper Little Black A-7 Dam Ripley	High Hazard	54 ft	1984	Earth	Missouri
Upper Little Black D-2 Ripley	High Hazard	73 ft	1989	Earth	Missouri
Upper Little Black D-4 Dam Ripley	Significant Hazard	40 ft	1986	Earth	Missouri
Upper Little Black D-5 Dam Ripley	Low Hazard	39 ft	1986	Earth	Missouri
Upper Little Black D-8 Dam Ripley	High Hazard	38 ft	1986	Earth	Missouri
Upper Little Black Watershed Dam A-5 Butler	Low Hazard	34 ft	1990	Earth	Missouri
Upper Little Black Watershed Dam D- 1 Ripley	Low Hazard	33 ft	1986	Earth	Missouri
Upper Little Black Watershed Dam D-12 Ripley	Low Hazard	31 ft	1998	Earth	Missouri
Upper Little Black Watershed Dam D- 3 Ripley	Low Hazard	29 ft	1981	Earth	Missouri
Upper Little Black Watershed Dam D- 7 Ripley	Low Hazard	35 ft	1990	Earth	Missouri
Upper Little Black Watershed Dam D- 9 Butler	Low Hazard	33 ft	1985	Earth	Missouri
Upper Little Falls Washington	Significant Hazard	20 ft	1950	Concrete	Maine
Upper Little Nemaha 17 Otoe	Low Hazard	36 ft	1996	Earth	Nebraska
Upper Little Nemaha 18 Otoe	Low Hazard	38 ft	1996	Earth	Nebraska
Upper Little Nemaha 21 Lancaster	High Hazard	51 ft	1998	Earth	Nebraska
Upper Little Nemaha 23 Lancaster	Significant Hazard	51 ft	2002	Earth	Nebraska
Upper Little Nemaha 25 Lancaster	Low Hazard	44 ft	2001	Earth	Nebraska
Upper Little Nemaha 26 Lancaster	Low Hazard	37 ft	1998	Earth	Nebraska
Upper Little Nemaha 31 East Otoe	Low Hazard	34 ft	2002	Earth	Nebraska
Upper Little Nemaha 31 West Otoe	Low Hazard	31 ft	2002	Earth	Nebraska
Upper Little Nemaha 34 Otoe	Low Hazard	42 ft	1996	Earth	Nebraska
Upper Little Nemaha 36 Otoe	Low Hazard	37 ft	2000	Earth	Nebraska
Upper Little Nemaha 37 Otoe	Low Hazard	30 ft	1994	Earth	Nebraska
Upper Little Nemaha 42 Otoe	Low Hazard	39 ft	2000	Earth	Nebraska
Upper Little Nemaha 5 Otoe	Significant Hazard	40 ft	1996	Earth	Nebraska
Upper Little Nemaha 50 Otoe	Low Hazard	43 ft	2001	Earth	Nebraska
Upper Little Nemaha 59 Otoe	Low Hazard	41 ft	1998	Earth	Nebraska
Upper Little Nemaha 61 Otoe	Low Hazard	39 ft	2001	Earth	Nebraska
Upper Little Nemaha 63 Otoe	Low Hazard	42 ft	2001	Earth	Nebraska
Upper Little Nemaha 79 Lancaster	Significant Hazard	38 ft	1998	Earth	Nebraska
Upper Little Nemaha 8 Otoe	Low Hazard	37 ft	1996	Earth	Nebraska
Upper Locust Creek B- 4 Putnam	Low Hazard	30 ft	1999	Earth	Missouri
Upper Locust Creek L-105 Putnam	Low Hazard	29 ft	1991	Earth	Missouri
Upper Locust Creek L-109 Putnam	Low Hazard	33 ft	1993	Earth	Missouri
Upper Locust Creek L-111 Putnam	Low Hazard	26 ft	2004	Earth	Missouri