Browse All Dams
| Dam Name | Hazard | Height | Built | Type | State |
|---|---|---|---|---|---|
| Archie Millard #1 Lyman | Low Hazard | 27 ft | 1960 | Earth | South Dakota |
| Archie Millard #2 Lyman | Low Hazard | 26 ft | 1968 | Earth | South Dakota |
| Archie Sims Pond 3 Marengo | Low Hazard | 18 ft | 1989 | Earth | Alabama |
| Archie Smith Dam Grundy | Low Hazard | 28 ft | 1989 | Earth | Missouri |
| Arch Johnson Pond Dam Moore | Low Hazard | — | — | Earth | North Carolina |
| Arch Slough Delta | Low Hazard | 15 ft | 1888 | Earth | Colorado |
| Archusa Creek Water Park Lake Dam Clarke | Low Hazard | 32 ft | 1971 | Earth | Mississippi |
| Arclar/Willow Lake/Refuse Area 2 Dam Saline | High Hazard | 108 ft | — | Earth | Illinois |
| Arco Dam Dickinson | Low Hazard | 29 ft | 1968 | Earth | Iowa |
| Arcola Center Dam Loudoun | Significant Hazard | — | — | Earth | Virginia |
| Arcola Subwatershed Site 1-5084 Monona | Low Hazard | 28 ft | 1965 | Earth | Iowa |
| Arcola Subwatershed Site 2-3090 Monona | Low Hazard | 27 ft | 1965 | Earth | Iowa |
| Arcola Subwatershed Site B-3000 Monona | Low Hazard | 34 ft | 1965 | Earth | Iowa |
| Arcola Subwatershed Site B-5350 Monona | Low Hazard | 30 ft | 1965 | Earth | Iowa |
| Arcola Subwatershed Sta 44+80 Monona | Low Hazard | 36 ft | 1964 | Earth | Iowa |
| Arco Lower Brine Reservoir Dam Cortland | Low Hazard | 20 ft | 1982 | Earth | New York |
| Arc Redevelopment Swm Pond Dam Prince William | High Hazard | 22 ft | — | Earth | Virginia |
| Arctic Kent | High Hazard | 28 ft | 1885 | Masonry | Rhode Island |
| Ardarra Farm Dam Fauquier | Unknown | 21 ft | — | Earth | Virginia |
| Ardean Kimmell Dam No 2 Comanche | Low Hazard | 22 ft | 1975 | Earth | Texas |
| Arden-Duck Mill Dam Worcester | Low Hazard | 18 ft | 1937 | Gravity | Massachusetts |
| Ardis Pond Dam Sumter | Low Hazard | 11 ft | 1800 | — | South Carolina |
| Ardmore City Lake Carter | Low Hazard | 40 ft | 1910 | Earth | Oklahoma |
| Ardmore Rod & Gun Club Carter | Low Hazard | 30 ft | 1935 | Earth | Oklahoma |
| Ardoch Dam Walsh | Low Hazard | 15 ft | 1938 | Earth | North Dakota |
| Ard Pond Dam Shannon | Low Hazard | 28 ft | 2006 | Earth | Missouri |
| Ardrey Park Dam Mecklenburg | High Hazard | — | — | Earth | North Carolina |
| Area 3/4 Lower Sed Pond Greene | Low Hazard | 35 ft | 2004 | Earth | Pennsylvania |
| Area 7 Section 4 Jefferson | Low Hazard | 27 ft | 1988 | Earth | Arkansas |
| Area A Hillsborough | Low Hazard | 35 ft | 1967 | Earth | Florida |
| Area B Polk | Low Hazard | 40 ft | 1967 | Earth | Florida |
| Area Br 1 Polk | Low Hazard | 25 ft | 1972 | Earth | Florida |
| Area Br 2 Polk | Low Hazard | 23 ft | 1972 | Earth | Florida |
| Area C Polk | Low Hazard | 22 ft | 1969 | Earth | Florida |
| Area D Polk | Low Hazard | 42 ft | 1971 | Earth | Florida |
| Area E Polk | Low Hazard | 33 ft | 1974 | Earth | Florida |
| Arehart Dam Phelps | Low Hazard | 28 ft | 1995 | Earth | Nebraska |
| Areharts Pond Dam Lexington | Low Hazard | 7 ft | 1955 | — | South Carolina |
| Arena Lake Dam Somervell | Low Hazard | 41 ft | 1953 | Earth | Texas |
| Arenas Dam St. Clair | Significant Hazard | 20 ft | 1950 | Earth | Illinois |
| Arend Oohms Dam Columbia | Low Hazard | 13 ft | 1970 | Earth | New York |
| Arends Hidden Acre Pond Orangeburg | Low Hazard | 17 ft | 1972 | — | South Carolina |
| Arens Lake Dam Morgan | Significant Hazard | 16 ft | 1978 | Earth | Indiana |
| Arentsen Pond 2 Dam Hamilton | Low Hazard | 15 ft | 1976 | Earth | Illinois |
| Arentsen Pond Dam Hamilton | High Hazard | 75 ft | 1992 | Earth | Illinois |
| Arenzo Lake Dam Rockdale | Low Hazard | 34 ft | 1986 | Earth | Georgia |
| Argenta Tailings Dam Lander | Significant Hazard | 36 ft | 1991 | Earth | Nevada |
| Argentine Dam Genesee | Significant Hazard | 17 ft | 1929 | Earth | Michigan |
| Argo Dam Washtenaw | High Hazard | 18 ft | 1920 | Gravity | Michigan |
| Argo Dam Appanoose | Low Hazard | 25 ft | 1985 | Earth | Iowa |