Hydroelectric Dams
2,099 dams in the US serve this purpose.
| Dam Name | Hazard | Height | Built | Type | State |
|---|---|---|---|---|---|
| Beaver Creek Diversion Tuolumne | Low Hazard | 54 ft | 1989 | Gravity | California |
| Beaver Dam Carroll | High Hazard | 228 ft | 1963 | Concrete | Arkansas |
| Beaver Mill Pond Dam Columbia | Low Hazard | 10 ft | 1925 | Concrete | New York |
| Beaverton Gladwin | Significant Hazard | 20 ft | 1919 | Gravity | Michigan |
| Bedford Amherst | Low Hazard | 17 ft | 1850 | Gravity | Virginia |
| Beebe Dam Tompkins | Significant Hazard | 28 ft | 1897 | Gravity | New York |
| Beebee Island Jefferson | Low Hazard | 31 ft | 1931 | Concrete | New York |
| Beebee Island Diversion Dam Jefferson | Significant Hazard | 22 ft | 1931 | Masonry | New York |
| Beech River Mill Dam Carroll | High Hazard | 14 ft | 1851 | Concrete | New Hampshire |
| Belden Forebay Plumas | High Hazard | 124 ft | 1958 | Rockfill | California |
| Beldens East Addison | Low Hazard | 27 ft | 1913 | Gravity | Vermont |
| Belding Ionia | Low Hazard | 15 ft | 1906 | Gravity | Michigan |
| Belfort Lewis | Low Hazard | 19 ft | 1904 | Concrete | New York |
| Belleville Locks and Dam Wood | Significant Hazard | — | 1968 | Concrete | West Virginia |
| Bellevue Mill Dam Eaton | Low Hazard | 14 ft | 1854 | Earth | Michigan |
| Bellows Falls Cheshire | Low Hazard | 48 ft | 1907 | Concrete | New Hampshire |
| Beloit Rock | Low Hazard | 15 ft | 1928 | Gravity | Wisconsin |
| Bend Hydro (Mirrorpond) Deschutes | Significant Hazard | 16 ft | 1905 | Other | Oregon |
| Bennetts Bridge Oswego | High Hazard | 35 ft | 1914 | Concrete | New York |
| Bennetts Bridge - Dike B Oswego | High Hazard | 13 ft | 1914 | Earth | New York |
| Bennetts Bridge - Dike C Oswego | High Hazard | 10 ft | 1914 | Earth | New York |
| Benton Falls Kennebec | Low Hazard | 27 ft | 1987 | Concrete | Maine |
| Berrien Springs Dam Berrien | High Hazard | 36 ft | 1908 | Gravity | Michigan |
| Bethel Mills Windsor | Low Hazard | 17 ft | 1940 | Concrete | Vermont |
| B. Everett Jordan Dam Chatham | High Hazard | 114 ft | 1974 | Earth | North Carolina |
| B. F. Sisk Merced | High Hazard | 305 ft | 1967 | Earth | California |
| Bidwell Bar Canyon Saddle Butte | High Hazard | 47 ft | 1968 | Earth | California |
| Big Bend Dam Lyman | High Hazard | — | 1963 | Earth | South Dakota |
| Big Cliff Dam Marion | High Hazard | 131 ft | 1954 | Gravity | Oregon |
| Big Creek Dam No. 1 Fresno | High Hazard | 170 ft | 1917 | Concrete | California |
| Big Creek Dam No. 4 Fresno | Low Hazard | 75 ft | 1913 | Concrete | California |
| Big Creek Dam No. 5 Fresno | Significant Hazard | 60 ft | 1921 | Concrete | California |
| Big Creek Dam No. 6 Madera | High Hazard | 155 ft | 1923 | Concrete | California |
| Big Creek Dam No. 7 Madera | High Hazard | 250 ft | 1951 | Concrete | California |
| Big Falls Rusk | High Hazard | 50 ft | 1923 | Gravity | Wisconsin |
| Big Falls Milldam Waupaca | Low Hazard | 15 ft | 1926 | Gravity | Wisconsin |
| Bigfork Diversion Dam Flathead | High Hazard | 22 ft | 1910 | Gravity | Montana |
| Big Island Bedford | Low Hazard | 15 ft | 1850 | Stone | Virginia |
| Big Pine Creek Inyo | High Hazard | 14 ft | — | Rockfill | California |
| Big Plum Creek Dawson | Low Hazard | 74 ft | 1941 | Earth | Nebraska |
| Big Quinnesec Falls Marinette | High Hazard | 77 ft | 1949 | Concrete | Michigan |
| Big Quinnesec Falls Marinette | High Hazard | 82 ft | 1948 | Gravity | Wisconsin |
| Big St Germain Vilas | Low Hazard | 7 ft | 1923 | Gravity | Wisconsin |
| Billings Oxford | Low Hazard | 18 ft | 1800 | Concrete | Maine |
| Birch Lake Lake | Low Hazard | 7 ft | 1922 | Rockfill | Minnesota |
| Biron Wood | High Hazard | 24 ft | 1937 | Gravity | Wisconsin |
| Biscoe Falls Oxford | Low Hazard | 15 ft | 1986 | Masonry | Maine |
| Bishop Creek Intake No. 2 Inyo | Significant Hazard | 30 ft | 1908 | Earth | California |
| Black Brook Polk | Low Hazard | 25 ft | 1917 | Gravity | Wisconsin |
| Black Brook Clinton | Low Hazard | 31 ft | 1896 | Masonry | New York |