High Hazard Dams
Loss of human life is likely if the dam fails.
| Dam Name | Hazard | Height | Built | Type | State |
|---|---|---|---|---|---|
| Bartlett's Fishing Lake Dam Stoddard | High Hazard | 20 ft | 1969 | Earth | Missouri |
| Barton Washington | High Hazard | 14 ft | 1846 | Gravity | Wisconsin |
| Barton County Club Dam Barton | High Hazard | 33 ft | 1922 | Earth | Kansas |
| Barton Creek Road Dam Wake | High Hazard | — | — | Earth | North Carolina |
| Barton Dam Washtenaw | High Hazard | 24 ft | 1913 | Earth | Michigan |
| Barton Porter West Garfield | High Hazard | 89 ft | 2005 | Earth | Colorado |
| Bartow 1 Polk | High Hazard | 30 ft | 1954 | Earth | Florida |
| Barus Dam Burke | High Hazard | — | — | Earth | North Carolina |
| Bar X Ranch Reservoir #2 Lake | High Hazard | 30 ft | 2003 | Earth | California |
| Bascherini Solano | High Hazard | 35 ft | 1962 | Earth | California |
| Baseline - East Boulder | High Hazard | 40 ft | 1905 | Earth | Colorado |
| Baseline - Northwest Boulder | High Hazard | 20 ft | 1905 | Earth | Colorado |
| Basf Catalysts, LLC Pond No. 5 Dam Hinds | High Hazard | 44 ft | 1942 | Earth | Mississippi |
| Basic Creek Dam Albany | High Hazard | 21 ft | 1928 | Earth | New York |
| Basich Lake Dam Jefferson | High Hazard | 38 ft | 1963 | Earth | Ohio |
| Basin 1 York | High Hazard | 13 ft | 1998 | Earth | Pennsylvania |
| Basin 2 York | High Hazard | 10 ft | 1998 | Earth | Pennsylvania |
| Basin Creek Dam #1 Silver Bow | High Hazard | 101 ft | 1897 | Concrete | Montana |
| Bass Dam Dent | High Hazard | 20 ft | 1957 | Earth | Missouri |
| Bass Lake Ravalli | High Hazard | 35 ft | 1887 | Earth | Montana |
| Bass Lake Dam Watauga | High Hazard | 42 ft | 1936 | Earth | North Carolina |
| Bass Lake Dam Wake | High Hazard | — | 1900 | Earth | North Carolina |
| Bass Lake Dam Transylvania | High Hazard | — | — | Earth | North Carolina |
| Bass Lake Dam Callaway | High Hazard | 33 ft | 1980 | Earth | Missouri |
| Bass Lake Dam Warren | High Hazard | 30 ft | 1911 | Concrete | New Jersey |
| Bass Lake Dam Lafayette | High Hazard | 49 ft | 1950 | Earth | Missouri |
| Bass Lake Dam Wayne | High Hazard | — | 1966 | Earth | North Carolina |
| Batavia Kill Watershed Dam #1 Greene | High Hazard | 74 ft | 1974 | Earth | New York |
| Batavia Kill Watershed Dam #3 Greene | High Hazard | 63 ft | 1970 | Earth | New York |
| Batavia Kill Watershed Dam #4a Greene | High Hazard | 57 ft | 1967 | Earth | New York |
| Batesburg Reservoir Dam Lexington | High Hazard | 32 ft | 1935 | — | South Carolina |
| Bath County P S Lower Reservoir - Lower Dam Bath | High Hazard | 135 ft | 1984 | Earth | Virginia |
| Bath County P S Upper Reservoir - Upper Dam Bath | High Hazard | 460 ft | 1984 | Earth | Virginia |
| Bathgate Detention Pond Centre | High Hazard | 21 ft | 1991 | Earth | Pennsylvania |
| Batterson Park Pond Dam Hartford | High Hazard | 25 ft | 1878 | Earth | Connecticut |
| Battle Creek Ramsey | High Hazard | 23 ft | 1982 | Earth | Minnesota |
| Baucom Lake Dam Mecklenburg | High Hazard | — | 1980 | Earth | North Carolina |
| Baudendistel Dam Franklin | High Hazard | 48 ft | 2000 | Earth | Missouri |
| Bauer Lake #2 - Main Dam Montezuma | High Hazard | 40 ft | 1905 | Earth | Colorado |
| Bauman Dam -Noname 381 Jackson | High Hazard | 23 ft | 1962 | Earth | Missouri |
| Bauman Lake Dam St. Francois | High Hazard | 34 ft | 1940 | Earth | Missouri |
| Baumgartner Dam Callaway | High Hazard | 29 ft | 1968 | Earth | Missouri |
| Baumgartner Lake Dam Callaway | High Hazard | 62 ft | 1991 | Earth | Missouri |
| Baxley 501 Pond Dam Marion | High Hazard | 7 ft | 1953 | — | South Carolina |
| Bayer Pond Dam Riley | High Hazard | 42 ft | — | Earth | Kansas |
| Baylor Lake Dam Childress | High Hazard | 43 ft | 1950 | Earth | Texas |
| Bay Meadows Lake Dam Durham | High Hazard | — | 1965 | Earth | North Carolina |
| Bayou Bodcau Dam Bossier | High Hazard | — | 1949 | Earth | Louisiana |
| Bayou Cocodrie Dam Rapides | High Hazard | 28 ft | 1959 | Earth | Louisiana |
| Bayou Darbonne Dam and Reservoir Union | High Hazard | 54 ft | 1961 | Earth | Louisiana |