High Hazard Dams
Loss of human life is likely if the dam fails.
| Dam Name | Hazard | Height | Built | Type | State |
|---|---|---|---|---|---|
| Brady Creek WS SCS Site 39 Dam McCulloch | High Hazard | 29 ft | 1955 | Earth | Texas |
| Brady Creek WS SCS Site 43a Dam McCulloch | High Hazard | 29 ft | 1960 | Earth | Texas |
| Brady Creek WS SCS Site 43b Dam McCulloch | High Hazard | 29 ft | 1960 | Earth | Texas |
| Brady Creek WS SCS Site 44 Dam McCulloch | High Hazard | 28 ft | 1955 | Earth | Texas |
| Brady Creek WS SCS Site 45 Dam McCulloch | High Hazard | 30 ft | 1956 | Earth | Texas |
| Brady Creek WS SCS Site 46 Dam McCulloch | High Hazard | 28 ft | 1956 | Earth | Texas |
| Brady Lake Dam McCulloch | High Hazard | 104 ft | 1963 | Earth | Texas |
| Brady Pond Dam and Dike Dutchess | High Hazard | 37 ft | 2001 | Earth | New York |
| Brady Porth Dam Lexington | High Hazard | 13 ft | — | — | South Carolina |
| Bradys Lake Monroe | High Hazard | 19 ft | 2007 | Roller-Compacted Concrete | Pennsylvania |
| Bradys Run Beaver | High Hazard | 33 ft | 1949 | Earth | Pennsylvania |
| Bragg Fork Slurry Impoundment Boone | High Hazard | 155 ft | — | Earth | West Virginia |
| Braidwood Station Cooling Pond Dam Will | High Hazard | 22 ft | 1979 | Earth | Illinois |
| Brainerd Crow Wing | High Hazard | 20 ft | 1950 | Gravity | Minnesota |
| Braintree Dam Norfolk | High Hazard | 37 ft | 2003 | Earth | Massachusetts |
| Brambleton Land Bay 3 Pond 6 Dam Loudoun | High Hazard | 14 ft | — | Earth | Virginia |
| Branaman Pond Dam Wake | High Hazard | — | — | Earth | North Carolina |
| Branched Oak Dam Lancaster | High Hazard | — | 1967 | Earth | Nebraska |
| Brand Debris Basin Los Angeles | High Hazard | 45 ft | 1965 | Earth | California |
| Brandon Kimbro Dam Sangamon | High Hazard | — | 2016 | — | Illinois |
| Brandon Road Lock and Dam Will | High Hazard | — | 1933 | Concrete | Illinois |
| Brand Park Los Angeles | High Hazard | 99 ft | 1930 | Earth | California |
| Brands Lake Dam Ste. Genevieve | High Hazard | 35 ft | 1970 | Earth | Missouri |
| Brands Upper Lake Dam-Sec 22 Ste. Genevieve | High Hazard | 25 ft | 1973 | Earth | Missouri |
| Brandywine Creek Site 1 Dam Broome | High Hazard | 76 ft | 1995 | Earth | New York |
| Branneky Lake Dam St. Louis | High Hazard | 34 ft | 1966 | Earth | Missouri |
| Brantley Eddy | High Hazard | 144 ft | 1989 | Concrete | New Mexico |
| Brasfield (Appomattox) Dinwiddie | High Hazard | 55 ft | 1968 | Gravity | Virginia |
| Brassua Somerset | High Hazard | 50 ft | 1927 | Concrete | Maine |
| Braswell'S Dam Patrick | High Hazard | 33 ft | — | Earth | Virginia |
| Bravo Lake Reservoir Tulare | High Hazard | 24 ft | 1980 | Earth | California |
| Braxton Moody Dam No. 1 West Feliciana | High Hazard | 30 ft | — | Earth | Louisiana |
| Brays Lake Dam Phelps | High Hazard | 79 ft | 1963 | Earth | Missouri |
| Brazoria Reservoir Dam Brazoria | High Hazard | 20 ft | 1954 | Earth | Texas |
| Brea Dam Orange | High Hazard | 87 ft | 1942 | Earth | California |
| Breckenridge Lake Dam Caddo | High Hazard | 21 ft | — | Earth | Louisiana |
| Breckenridge Recreation Center Dam Wake | High Hazard | — | 2001 | Earth | North Carolina |
| Breckenridge Tract 9 & 10 Dam Wake | High Hazard | — | 2002 | Earth | North Carolina |
| Breckinridge Dam Stafford | High Hazard | 58 ft | 1940 | Concrete | Virginia |
| Breedlove Dam Jackson | High Hazard | — | 1972 | Earth | North Carolina |
| Breedlove Flood Control Dam Doña Ana | High Hazard | 23 ft | 1996 | Earth | New Mexico |
| Breeds Pond Dike #10 Essex | High Hazard | 5 ft | 1914 | Earth | Massachusetts |
| Breed's Pond Dike #11 Essex | High Hazard | 12 ft | 1914 | Earth | Massachusetts |
| Breeds Pond Dike #12 Essex | High Hazard | 12 ft | 1914 | Earth | Massachusetts |
| Breeds Pond Dike #8 Essex | High Hazard | 30 ft | 1914 | Earth | Massachusetts |
| Breeds Pond Lantern Rock Dike #4 Essex | High Hazard | 30 ft | 1914 | Earth | Massachusetts |
| Breeds Pond Outlet Dam #5 Essex | High Hazard | 44 ft | 1870 | Concrete | Massachusetts |
| Breen Lake Dam Platte | High Hazard | 25 ft | 1972 | Earth | Missouri |
| Bremerton Reservoir No 4 Kitsap | High Hazard | — | 1917 | Earth | Washington |
| Bremo Power Station Dam Fluvanna | High Hazard | 102 ft | — | Earth | Virginia |