Hydroelectric Dams
2,099 dams in the US serve this purpose.
| Dam Name | Hazard | Height | Built | Type | State |
|---|---|---|---|---|---|
| Cougar Dam Lane | High Hazard | 473 ft | 1963 | Rockfill | Oregon |
| Courtright Fresno | High Hazard | 315 ft | 1958 | Rockfill | California |
| Cowans Ford Mecklenburg | High Hazard | 134 ft | 1963 | Concrete | North Carolina |
| Cowlitz Falls Lewis | Significant Hazard | 120 ft | 1994 | Concrete | Washington |
| Cox Lake Randolph | Significant Hazard | 26 ft | 1918 | Concrete | North Carolina |
| Coyote Valley Dam Mendocino | High Hazard | 164 ft | 1959 | Earth | California |
| Cpud Middle Fork Calaveras | High Hazard | 102 ft | 1939 | Earth | California |
| Craggy Dam Buncombe | Low Hazard | 13 ft | 1904 | Gravity | North Carolina |
| Cranberry Lake St. Lawrence | High Hazard | 19 ft | 1917 | Gravity | New York |
| Crane Valley Madera | High Hazard | 145 ft | 1910 | — | California |
| Crescent - Dam A Albany | High Hazard | 53 ft | 1912 | Concrete | New York |
| Crescent Street Worcester | Significant Hazard | 28 ft | 1900 | Concrete | Massachusetts |
| Cresta Plumas | Significant Hazard | 113 ft | 1949 | Concrete | California |
| Cresticon Lower Worcester | Significant Hazard | 6 ft | 1948 | Concrete | Massachusetts |
| Cresticon Upper Worcester | Low Hazard | 12 ft | 1931 | Concrete | Massachusetts |
| Crisp County (Warwick) Worth | High Hazard | 42 ft | 1930 | Gravity | Georgia |
| Crocker Pond Somerset | Low Hazard | 12 ft | 1914 | Concrete | Maine |
| Crocker Pond Dam Worcester | High Hazard | 39 ft | 1933 | Earth | Massachusetts |
| Cross Power Coos | High Hazard | 25 ft | 1903 | Concrete | New Hampshire |
| Croton Newaygo | High Hazard | 46 ft | 1907 | Gravity | Michigan |
| Crowley Price | High Hazard | 23 ft | 1930 | Gravity | Wisconsin |
| Crystal Montrose | High Hazard | 227 ft | 1977 | Concrete | Colorado |
| Crystal Creek El Paso | High Hazard | 90 ft | 1934 | Earth | Colorado |
| Crystal Falls Iron | Low Hazard | 24 ft | 1903 | Gravity | Michigan |
| Crystal Lake Tulare | Low Hazard | 17 ft | 1903 | Gravity | California |
| Crystal Lake Petersburg Borough | High Hazard | 43 ft | 1955 | Rockfill | Alaska |
| Crystal Lake Dike Lewis | Low Hazard | 12 ft | — | Earth | New York |
| Cuero Lake Dam DeWitt | Low Hazard | 37 ft | 1898 | Gravity | Texas |
| Culbertson Lake Nevada | Low Hazard | 20 ft | 1852 | Earth | California |
| Culmback Snohomish | High Hazard | 262 ft | 1983 | Rockfill | Washington |
| Curtis Saratoga | Low Hazard | 36 ft | 1913 | Concrete | New York |
| Cushaw Amherst | Low Hazard | 26 ft | 1930 | Gravity | Virginia |
| Cushman No 1 Mason | High Hazard | 235 ft | 1926 | Arch | Washington |
| Cushman No 2 Mason | High Hazard | 175 ft | 1930 | Arch | Washington |
| Cutler Box Elder | High Hazard | 126 ft | 1927 | Concrete | Utah |
| Daigle Pond Aroostook | Low Hazard | 15 ft | 1874 | Concrete | Maine |
| Dale Hollow Dam Clay | High Hazard | — | 1943 | Gravity | Tennessee |
| Dalesmoore Plantation Meriwether | Low Hazard | 15 ft | 1925 | Gravity | Georgia |
| Damariscotta - Intake Dam Lincoln | Low Hazard | 15 ft | 1920 | Concrete | Maine |
| Damariscotta - Waste Gate Dam Lincoln | Low Hazard | 10 ft | 1920 | Concrete | Maine |
| Dam At Lock E 27 Wayne | Low Hazard | 23 ft | 1910 | Concrete | New York |
| Danbury Burnett | Low Hazard | 30 ft | 1928 | Gravity | Wisconsin |
| Dane Perkins York | Low Hazard | 12 ft | 1979 | Concrete | Maine |
| Daniel Green Company Dam Herkimer | Low Hazard | 20 ft | 1917 | Concrete | New York |
| Danville Dodge | Low Hazard | 17 ft | 1850 | Gravity | Wisconsin |
| Dardanelle Lock and Dam Pope | Significant Hazard | 71 ft | 1969 | Concrete | Arkansas |
| Dashville Dam Ulster | Low Hazard | 34 ft | 1922 | Concrete | New York |
| Davis Bor Mohave | High Hazard | 200 ft | 1952 | Earth | Arizona |
| Dawson Lake Stanislaus | Low Hazard | 22 ft | 1896 | Earth | California |
| Dayton LaSalle | Low Hazard | 23 ft | 1925 | Earth | Illinois |