Browse All Dams
| Dam Name | Hazard | Height | Built | Type | State |
|---|---|---|---|---|---|
| Algonquin Dam McHenry | Significant Hazard | 9 ft | 1947 | Concrete | Illinois |
| Algonquin Lake Dam Barry | Significant Hazard | 14 ft | 1927 | Earth | Michigan |
| Algood Mill Dam Yadkin | Low Hazard | — | — | Concrete | North Carolina |
| A L House Catfish Farm D Dam Monroe | Unknown | 20 ft | 1965 | Earth | Mississippi |
| Al Howell Pond Dam Darlington | Low Hazard | 15 ft | 1955 | — | South Carolina |
| Alice Cumberland | Significant Hazard | — | 1963 | Earth | Tennessee |
| Alice Falls Clinton | Low Hazard | 80 ft | 1895 | Gravity | New York |
| Alice S Gaskin Dam Aiken | Low Hazard | 18 ft | 1942 | — | South Carolina |
| Alicia Lake Eagle | Low Hazard | 13 ft | 1906 | Earth | Colorado |
| Alisal Creek Santa Barbara | High Hazard | 93 ft | 1971 | Earth | California |
| Alitak Cannery Dam #1 Kodiak Island Borough | High Hazard | 9 ft | 1917 | Earth | Alaska |
| Alitak Cannery Dam #2 Kodiak Island Borough | Low Hazard | 18 ft | 1964 | Earth | Alaska |
| Alitak Cannery Dam #3 Kodiak Island Borough | Low Hazard | — | 1964 | Rockfill | Alaska |
| Alitak Cannery Dam #4 Kodiak Island Borough | Low Hazard | — | 1964 | Rockfill | Alaska |
| Al Jacobi Dam Escambia | Significant Hazard | 16 ft | 1958 | Earth | Florida |
| Aljundi Pond Adair | Low Hazard | 26 ft | 1998 | Earth | Missouri |
| Al Jurgeson Lake Dam Cass | Low Hazard | 28 ft | 1975 | Earth | Missouri |
| Alkali Creek Park | Low Hazard | 36 ft | 1950 | Earth | Wyoming |
| Alkali Creek Dam Butte | Low Hazard | — | — | Gravity | South Dakota |
| Alkali Creek Dam Bowman | Low Hazard | 18 ft | 1993 | Earth | North Dakota |
| Alkali Dam Humboldt | Low Hazard | 16 ft | 1941 | Earth | Nevada |
| Alkali Dam Natrona | Low Hazard | — | 1967 | Gravity | Wyoming |
| Alkali Dam Fremont | Low Hazard | 35 ft | 1964 | Gravity | Wyoming |
| Alkali Detention Dam Valley | Low Hazard | — | 1958 | Gravity | Montana |
| Alkali Flat Toole | Low Hazard | 25 ft | 1965 | Earth | Montana |
| Alkali Lake Grant | Low Hazard | — | 1950 | Rockfill | Washington |
| Alkali (Nid) Lyman | Low Hazard | 16 ft | 1938 | Earth | South Dakota |
| Alkali (Toole) Toole | Low Hazard | 20 ft | 1907 | Earth | Montana |
| Alkek Lake No 1 Dam Bandera | Significant Hazard | 36 ft | 1960 | Earth | Texas |
| Alkek Lake No 2 Dam Bandera | Significant Hazard | 27 ft | 1940 | Earth | Texas |
| All American Sports City INC Rec Dam Dutchess | Significant Hazard | 17 ft | 1966 | Earth | New York |
| Allamuchy Pond Dam Warren | Significant Hazard | 13 ft | — | Earth | New Jersey |
| Allan Richland | Low Hazard | 10 ft | 1950 | Earth | Montana |
| Allan #2 Custer | Low Hazard | 24 ft | 1955 | Earth | Montana |
| Allan Baucom Dam Union | Low Hazard | — | 1983 | Earth | North Carolina |
| Allan Meinen Dam Washington | Low Hazard | 24 ft | 1995 | Earth | Texas |
| Allan Saxe Pond Tarrant | High Hazard | 9 ft | — | Earth | Texas |
| Allan'S Mill Subdivision Pond 1 Dam Richland | High Hazard | 10 ft | — | — | South Carolina |
| Allard Dam Macon | Low Hazard | 35 ft | 1997 | Earth | Missouri |
| Allardt Land Co. Fentress | Low Hazard | — | 2001 | Earth | Tennessee |
| Allatoona Dam Bartow | High Hazard | — | 1965 | Gravity | Georgia |
| Allday Dam Houston | Low Hazard | 16 ft | 1949 | Earth | Texas |
| Allee Campbell | Low Hazard | 7 ft | 1978 | Earth | Wyoming |
| Allegan Allegan | Low Hazard | 30 ft | 1936 | Gravity | Michigan |
| Allegan City Dam Allegan | High Hazard | 14 ft | 1900 | Earth | Michigan |
| Allegheny River Lock and Dam 2 Allegheny | Significant Hazard | — | 1934 | Gravity | Pennsylvania |
| Allegheny River Lock and Dam 4 Allegheny | Significant Hazard | — | 1927 | Gravity | Pennsylvania |
| Allegheny River Lock and Dam 5 Armstrong | Low Hazard | — | 1927 | Gravity | Pennsylvania |
| Allegheny River Lock and Dam 6 Armstrong | Low Hazard | — | 1928 | Gravity | Pennsylvania |
| Allegheny River Lock and Dam 7 Armstrong | Low Hazard | — | 1931 | Gravity | Pennsylvania |