Flood Risk Reduction Dams

17,618 dams in the US serve this purpose.

Dam Name	Hazard	Height	Built	Type	State
Blake Dam Red Willow	Low Hazard	15 ft	1960	Earth	Nebraska
Blake Lake Polk	Low Hazard	9 ft	2018	—	Wisconsin
Blakely Mountain Dam Garland	High Hazard	226 ft	1953	Earth	Arkansas
Blake's Creek Site No.7 Kanawha	High Hazard	46 ft	1970	Earth	West Virginia
Blanca Rodriguez Dam Fayette	Low Hazard	22 ft	—	Earth	Texas
Blanchard Debris Basin Los Angeles	High Hazard	50 ft	1966	Earth	California
Blanke Dam Cheyenne	Significant Hazard	21 ft	1956	Earth	Nebraska
Blanket Creek WS SCS Site 10 Dam Brown	Low Hazard	37 ft	1966	Earth	Texas
Blanket Creek WS SCS Site 11 Dam Brown	Low Hazard	43 ft	1972	Earth	Texas
Blanket Creek WS SCS Site 12 Dam Comanche	Low Hazard	42 ft	1965	Earth	Texas
Blanket Creek WS SCS Site 13 Dam Comanche	Low Hazard	39 ft	1965	Earth	Texas
Blanket Creek WS SCS Site 14 Dam Brown	Low Hazard	45 ft	1965	Earth	Texas
Blanket Creek WS SCS Site 15 Dam Brown	High Hazard	41 ft	1965	Earth	Texas
Blanket Creek WS SCS Site 16 Dam Brown	Significant Hazard	33 ft	1965	Earth	Texas
Blanket Creek WS SCS Site 1 Dam Brown	High Hazard	32 ft	1965	Earth	Texas
Blanket Creek WS SCS Site 20 Dam Mills	Low Hazard	55 ft	1965	Earth	Texas
Blanket Creek WS SCS Site 2a Dam Comanche	High Hazard	37 ft	1969	Earth	Texas
Blanket Creek WS SCS Site 3 Dam Brown	High Hazard	29 ft	1965	Earth	Texas
Blanket Creek WS SCS Site 4 Dam Brown	High Hazard	30 ft	1965	Earth	Texas
Blanket Creek WS SCS Site 6 Dam Brown	Significant Hazard	45 ft	1966	Earth	Texas
Blanket Creek WS SCS Site 7 Dam Brown	Significant Hazard	30 ft	1966	Earth	Texas
Blanket Creek WS SCS Site 8 Dam Brown	Low Hazard	32 ft	1972	Earth	Texas
Blanket Creek WS SCS Site 9 Dam Brown	High Hazard	42 ft	1969	Earth	Texas
Bleachery Dam Middlesex	Low Hazard	8 ft	1900	Gravity	Massachusetts
Blickenstaff Dam Furnas	Low Hazard	23 ft	1960	Earth	Nebraska
Blockton Watershed Site A-1 Taylor	Low Hazard	33 ft	1973	Earth	Iowa
Blockton Watershed Site A-2 Taylor	Low Hazard	27 ft	1973	Earth	Iowa
Blockton Watershed Site A-3 Taylor	Low Hazard	23 ft	1966	Earth	Iowa
Blockton Watershed Site E-1 Taylor	Low Hazard	30 ft	1973	Earth	Iowa
Blockton Watershed Site E-2 Taylor	Low Hazard	34 ft	1973	Earth	Iowa
Blockton Watershed Site E-3 Taylor	Low Hazard	36 ft	1973	Earth	Iowa
Blockton Watershed Site J-1 Taylor	Low Hazard	28 ft	1966	Earth	Iowa
Blockton Watershed Site K-1 Taylor	Low Hazard	28 ft	1973	Earth	Iowa
Blockton Watershed Site S-1 Taylor	Low Hazard	24 ft	1966	Earth	Iowa
Blockton Watershed Site S-10 Taylor	Low Hazard	25 ft	1966	Earth	Iowa
Blockton Watershed Site S-2 Taylor	Low Hazard	27 ft	1987	Earth	Iowa
Blockton Watershed Site S-5 Taylor	Low Hazard	41 ft	1993	Earth	Iowa
Blockton Watershed Site S-7 Taylor	Low Hazard	23 ft	1970	Earth	Iowa
Blockton Watershed Site S-8 Taylor	Low Hazard	18 ft	1966	Earth	Iowa
Blockton Watershed Site S-9 Taylor	Low Hazard	30 ft	1973	Earth	Iowa
Blockton Watershed Site T-1 Taylor	Low Hazard	26 ft	1969	Earth	Iowa
Blockton Watershed Site V-1 Taylor	Low Hazard	32 ft	1966	Earth	Iowa
Blockton Watershed Site W-2 Taylor	Low Hazard	25 ft	1970	Earth	Iowa
Blockton Watershed Site W-3 Taylor	Low Hazard	22 ft	1970	Earth	Iowa
Blockton Watershed Site W-4 Taylor	Low Hazard	24 ft	1966	Earth	Iowa
Blockton Watershed Site W-5 Taylor	Low Hazard	22 ft	1966	Earth	Iowa
Blockton Watershed Site W-7 Taylor	Low Hazard	24 ft	1966	Earth	Iowa
Bloomfield Flood Control Site #3a Dam Hartford	Low Hazard	16 ft	1969	Earth	Connecticut
Bloomfield Flood Control Site #3 Dam Hartford	High Hazard	29 ft	1962	Earth	Connecticut
Blue Diamond Business Center Detention Basin Dam #1 Clark	High Hazard	18 ft	2019	Earth	Nevada