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 |
|---|---|---|---|---|---|
| Cambridge City Reservoir Dam Guernsey | Significant Hazard | 47 ft | 1916 | Earth | Ohio |
| Camel Butte Dam Golden Valley | Significant Hazard | 53 ft | 1968 | Earth | North Dakota |
| Camerer Dam Pike | Significant Hazard | 20 ft | 1973 | Earth | Missouri |
| Cameron Morrison Lagoon Dam Richmond | Significant Hazard | — | 1990 | Earth | North Carolina |
| Camino Dos Lagos Dam Grayson | Significant Hazard | 15 ft | — | — | Texas |
| Camino Venado Lake Dam Tazewell | Significant Hazard | — | — | — | Illinois |
| Camp Alice Merritt Dam Hartford | Significant Hazard | 14 ft | 1937 | Earth | Connecticut |
| Campbell Lake Dam Walker | Significant Hazard | 20 ft | 1995 | Earth | Texas |
| Campbells Ledge Luzerne | Significant Hazard | 33 ft | 1906 | Earth | Pennsylvania |
| Campbells Pond Allegheny | Significant Hazard | 19 ft | 1946 | Earth | Pennsylvania |
| Campbells Pond Dam Essex | Significant Hazard | 22 ft | 1899 | Earth | New Jersey |
| Campbellsville Reservoir Dam Taylor | Significant Hazard | 49 ft | 1951 | Earth | Kentucky |
| Camp Burgiss Glen Lake Dam Transylvania | Significant Hazard | — | — | Earth | North Carolina |
| Camp Cedarcrest Pond Dam New Haven | Significant Hazard | 15 ft | — | Concrete | Connecticut |
| Camp Chautauqua Pond Dam Cattaraugus | Significant Hazard | 36 ft | 1965 | Earth | New York |
| Camp Coker Pond Dam Chesterfield | Significant Hazard | 11 ft | 1938 | — | South Carolina |
| Camp Conger Lake Dam Huron | Significant Hazard | 19 ft | 1963 | Earth | Ohio |
| Camp Creek Reservoir (Baker) Baker | Significant Hazard | 45 ft | 1932 | Earth | Oregon |
| Camp Delaware Dam Litchfield | Significant Hazard | 10 ft | — | Earth | Connecticut |
| Campden Lakes North Dam Delaware | Significant Hazard | 10 ft | 1998 | Earth | Ohio |
| Campden Lakes South Dam Franklin | Significant Hazard | 11 ft | 1998 | Earth | Ohio |
| Camp Ernst Dam Boone | Significant Hazard | 65 ft | 1950 | Earth | Kentucky |
| Campfire Lake Dam Westchester | Significant Hazard | 14 ft | 1920 | Earth | New York |
| Camp Foss Sewage Lagoon Dam Strafford | Significant Hazard | 10 ft | 1979 | Earth | New Hampshire |
| Camp Freedman Pond Dam Litchfield | Significant Hazard | 2 ft | 1942 | Earth | Connecticut |
| Camp Gan Israel Pond Dam Sullivan | Significant Hazard | 15 ft | 1952 | Earth | New York |
| Campgaw Mountain Lake Dam Bergen | Significant Hazard | 7 ft | — | Earth | New Jersey |
| Camp Givah Dam Albany | Significant Hazard | 17 ft | 1976 | Earth | New York |
| Camp Herrlich Dam Putnam | Significant Hazard | 12 ft | 1981 | Earth | New York |
| Camp Hilaka Lake Dam Summit | Significant Hazard | 30 ft | 1926 | Earth | Ohio |
| Camp Hill Reservoir Tallapoosa | Significant Hazard | — | 1963 | Earth | Alabama |
| Camp Hobilitzelle Lake Dam Ellis | Significant Hazard | 29 ft | 1932 | Earth | Texas |
| Camp Inawendiwin Middle Dam Burlington | Significant Hazard | 12 ft | — | Earth | New Jersey |
| Camp Indi-Co-So Dam Lawrence | Significant Hazard | 35 ft | 1955 | Earth | Indiana |
| Camp Jackson San Juan | Significant Hazard | — | 1939 | Earth | Utah |
| Camp Julia Crowell Lake Dam Summit | Significant Hazard | 25 ft | 1920 | Earth | Ohio |
| Camp Killooleet Addison | Significant Hazard | 14 ft | 1987 | Earth | Vermont |
| Camp Koch Lake Dam Perry | Significant Hazard | 14 ft | — | Earth | Indiana |
| Camp La Junta Dam Kerr | Significant Hazard | 12 ft | 1978 | Concrete | Texas |
| Camp Lakeview Dam Bartholomew | Significant Hazard | 29 ft | 2008 | Earth | Indiana |
| Camp Nyoda Dam Morris | Significant Hazard | 9 ft | 1912 | Earth | New Jersey |
| Camp Oak Hill Pond Dam Granville | Significant Hazard | — | — | Earth | North Carolina |
| Camp Ramah Upper Pond Middlesex | Significant Hazard | 8 ft | — | Earth | Connecticut |
| Camp Red Mill Lake Dam LaPorte | Significant Hazard | 21 ft | 1833 | Earth | Indiana |
| Camp Robinson Lake Dam No 2 Pulaski | Significant Hazard | — | 1936 | Earth | Arkansas |
| Camp Ryker Lake Dam Sussex | Significant Hazard | 10 ft | — | Earth | New Jersey |
| Camp Sandyridge Dam Marlboro | Significant Hazard | 17 ft | 1958 | — | South Carolina |
| Camp Sandyridge Pond Dam Marlboro | Significant Hazard | 25 ft | 1968 | — | South Carolina |
| Camp Schoellkopf #2 Dam Wyoming | Significant Hazard | 23 ft | 1957 | Earth | New York |
| Camp Schoellkopf Dam Wyoming | Significant Hazard | 17 ft | 1955 | Earth | New York |