Significant Hazard Dams
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
| Dam Name | Hazard | Height | Built | Type | State |
|---|---|---|---|---|---|
| Brantley Lake Dam Chilton | Significant Hazard | — | — | Earth | Alabama |
| Braswell Milling Company Dam Nash | Significant Hazard | — | — | Earth | North Carolina |
| Braun Pond Dam Sangamon | Significant Hazard | 26 ft | 1952 | Earth | Illinois |
| Braxton Moody Dam No. 3 West Feliciana | Significant Hazard | 25 ft | — | Earth | Louisiana |
| Bray Lake Gooding | Significant Hazard | 36 ft | 1915 | — | Idaho |
| Bray Lake Dam Morgan | Significant Hazard | 21 ft | 1965 | Earth | Indiana |
| Brazos River Club Levee Brazoria | Significant Hazard | 8 ft | 1940 | Earth | Texas |
| Breakneck Dam Burlington | Significant Hazard | 14 ft | 1870 | Earth | New Jersey |
| Brebner Dam Marquette | Significant Hazard | 25 ft | 1969 | Earth | Michigan |
| Breckenridge Cumberland | Significant Hazard | — | 1979 | Earth | Tennessee |
| Breckenridge Detention Allegheny | Significant Hazard | 49 ft | — | Earth | Pennsylvania |
| Breckridge Breckinridge | Significant Hazard | 21 ft | 1965 | Earth | Kentucky |
| Breckwood Pond Dam Hampden | Significant Hazard | 23 ft | — | Earth | Massachusetts |
| Bredenbeck Lake Dam Ashland | Significant Hazard | 18 ft | 1969 | Earth | Ohio |
| Breitbart Dam Buncombe | Significant Hazard | — | — | Earth | North Carolina |
| Brent Road (Sgl 151) Mercer | Significant Hazard | — | — | — | Pennsylvania |
| Breton Bay Golf and Country Club Dam St. Mary's | Significant Hazard | 45 ft | 1970 | Earth | Maryland |
| Brewer Brook Dam Worcester | Significant Hazard | 25 ft | 1964 | Earth | Massachusetts |
| Brewer Lake Conway | Significant Hazard | 83 ft | 1983 | Earth | Arkansas |
| Brewer Reservoir (Jefferson) Jefferson | Significant Hazard | 30 ft | 1952 | Earth | Oregon |
| Brewington Creek Ranch Dam Bandera | Significant Hazard | 37 ft | 1964 | Earth | Texas |
| Brewster Dam Bergen | Significant Hazard | 13 ft | 1949 | Earth | New Jersey |
| Brewster Pond Dam Fairfield | Significant Hazard | 13 ft | — | Concrete | Connecticut |
| Brewster Pond Dam Litchfield | Significant Hazard | 13 ft | 1854 | Earth | Connecticut |
| Brezina Dam Butler | Significant Hazard | 21 ft | 1971 | Earth | Nebraska |
| Brian Head Phase Iii Iron | Significant Hazard | — | 1993 | Earth | Utah |
| Brian Head Town Iron | Significant Hazard | — | — | Earth | Utah |
| Brian Lake Dam McLean | Significant Hazard | 25 ft | 1954 | Earth | Illinois |
| Briant Park Dam Union | Significant Hazard | 16 ft | 1930 | Earth | New Jersey |
| Briar Chapel Reclamation Facility Central Pond Dam Chatham | Significant Hazard | — | 2008 | Earth | North Carolina |
| Briarwood Lake Dam Burlington | Significant Hazard | 12 ft | — | Earth | New Jersey |
| Bridge Fork Dam McCreary | Significant Hazard | 105 ft | 1930 | Earth | Kentucky |
| Bridgepoint Dam Somerset | Significant Hazard | 15 ft | 1988 | Earth | New Jersey |
| Bridgeview Plaza Dam Ulster | Significant Hazard | 5 ft | — | Earth | New York |
| Bridlewood Lower Dam Chesterfield | Significant Hazard | 25 ft | 1978 | — | South Carolina |
| Brier Hill #6 Fayette | Significant Hazard | 22 ft | 1914 | Earth | Pennsylvania |
| Brierly Pond Dam Worcester | Significant Hazard | 10 ft | — | Earth | Massachusetts |
| Briggs Dam Van Buren | Significant Hazard | 9 ft | 1898 | Earth | Michigan |
| Briggs Woods Lake Dam Hamilton | Significant Hazard | 44 ft | 1968 | Earth | Iowa |
| Brigham Pond Dam Worcester | Significant Hazard | 15 ft | 1872 | Earth | Massachusetts |
| Brighton Lake Dam Livingston | Significant Hazard | 20 ft | 1929 | Earth | Michigan |
| Brilliant Lake Dam Marion | Significant Hazard | — | — | Earth | Alabama |
| Brimstone Leach Event Pond Dam Humboldt | Significant Hazard | 27 ft | 2011 | Earth | Nevada |
| Brine Disposal Pond Dam Mohave | Significant Hazard | 19 ft | 2001 | Earth | Arizona |
| Briney Lake 2 Dam Schuyler | Significant Hazard | 34 ft | 1965 | Earth | Illinois |
| Brinkley Ridge Dam #1 (Bmp 4) Cleveland | Significant Hazard | — | — | Earth | North Carolina |
| Brinkley Ridge Dam #2 (Bmp 2) Cleveland | Significant Hazard | — | — | Earth | North Carolina |
| Brinkley Ridge Dam #3 (Bmp 5) Cleveland | Significant Hazard | — | — | Earth | North Carolina |
| Brinkley Twin Lakes Dam #1 Mecklenburg | Significant Hazard | — | 1950 | Earth | North Carolina |
| Brisbane Lake Dam Monmouth | Significant Hazard | 14 ft | — | Earth | New Jersey |