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Browse Dams

12,547 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 12,547 dams from the NID database. Each record includes dam name, location, physical dimensions, hazard potential classification, condition assessment, purpose, owner information, and emergency action plan status. Use the filters below to search by state, hazard level, condition, or keyword.

Clear
Name State County Height (ft) Hazard Condition Year Purpose
Weisner Hollow Slurry Pennsylvania Jefferson 192 High Fair — Other
Joes Valley Utah Emery 192 High Fair 1966 Irrigation
Bouquet Canyon California Los Angeles 190 High Fair 1934 Water Supply
Casad Dam Washington Kitsap 190 High Fair 1956 Water Supply
Gainer Memorial Rhode Island Providence 189 High Fair 1926 Water Supply
Morris Sheppard Dam Texas Palo Pinto 189 High Fair 1941 Irrigation
Priest Rapids Washington Grant 187 High Fair 1961 Hydroelectric
Simplot Tailings Dam Nevada Clark 185 Low Fair 1981 Tailings
Terrace Colorado Conejos 183 High Fair 1912 Irrigation
Spillway Dam Oregon Clackamas 180 High Fair 1962 Water Supply
Lone Tree Section 23 Tails Dam Nevada Humboldt 180 Significant Fair 1996 Flood Risk Reduction
Cambria Slurry Pond #4 Pennsylvania Cambria 178 High Fair — Other
Juniper Tailings Dam Nevada Humboldt 176 Significant Fair 1997 Flood Risk Reduction
Rmg Cell B Tsf Dam Nevada Nye 175 Significant Fair 2016 Flood Risk Reduction
Falcon Dam Texas Starr 175 High Fair 1953 Flood Risk Reduction
Scotts Flat California Nevada 175 High Fair 1948 Fire Protection, Stock, Or ...
Phoenix Tailings Dam Nevada Lander 173 Low Fair 1971 Flood Risk Reduction
Cedar Cliff North Carolina Jackson 173 High Fair 1952 Hydroelectric
Wood Creek Lake Dam Kentucky Laurel 172 High Fair 1969 Water Supply
Belews Lake Dam North Carolina Rockingham 170 High Fair — Other
Big Creek Dam No. 1 California Fresno 170 High Fair 1917 Hydroelectric
Martin Alabama Tallapoosa 168 High Fair 1926 Hydroelectric
High Savery Wyoming Carbon 165 High Fair 2003 Irrigation
Mill #4 Tailings #2 Dam Nevada Eureka 165 Significant Fair 1993 Tailings
Lake Las Vegas Dam Nevada Clark 165 Significant Fair 1991 Recreation
Lower Sunshine Wyoming Park 162 High Fair 1972 Irrigation
Kingsley Nebraska Keith 162 High Fair 1941 Hydroelectric
Upper Sunshine Wyoming Park 160 High Fair 1942 Irrigation
Nepaug Dam Connecticut Litchfield 156 High Fair 1918 Water Supply
Prettyboy Dam Maryland Baltimore 155 High Fair 1936 Water Supply
Belden Forebay California Plumas 152 High Fair 1958 Hydroelectric
Vail California Riverside 152 High Fair 1949 Water Supply
Ice House Main California El Dorado 152 High Fair 1959 Hydroelectric
Carson City Treated Effluent Dam Nevada Carson City 152 High Fair — Other
Muskingum River Upper Fly Ash Dam Ohio Washington 152 High Fair 1975 Tailings
Rob Roy Wyoming Albany 150 High Fair 1986 Water Supply
James Creek Diversion Dam Nevada Eureka 150 High Fair 1985 Flood Risk Reduction
Florence Lake California Fresno 149 High Fair 1926 Hydroelectric
Greystone Tails Dam Nevada Lander 148 Low Fair 1954 Tailings
Grace Mine Tailings Pennsylvania Berks 145 High Fair 1957 Recreation
Oakley Idaho Cassia 145 High Fair 1916 Irrigation
Crane Valley California Madera 145 High Fair 1910 Hydroelectric
Strawberry California Tuolumne 143 High Fair 1916 Hydroelectric
Waynesville Water Supply Dam North Carolina Haywood 142 High Fair 1982 Flood Risk Reduction
Eagle Nest Dam New Mexico Colfax 142 High Fair 1918 Irrigation
Alexander Kauai 141 High Fair 1931 Hydroelectric
Groundhog Colorado Dolores 141 High Fair 1939 Irrigation
Icon Materials Pond 4 Washington King 140 High Fair 1997 Water Supply
Davis County -Barton Creek Db Utah Davis 140 High Fair 1984 Flood Risk Reduction
Sweetwater Lake Dam Indiana Brown 140 High Fair 1965 Recreation

Frequently Asked Questions

Hazard potential is based on the consequences of dam failure, not the condition of the dam. High hazard means loss of human life is probable. Significant means economic and environmental losses are expected but no probable loss of life. Low means minimal losses are expected. The classification considers downstream population, infrastructure, and environmental resources.

Condition ratings reflect the physical state of the dam based on periodic inspections. Satisfactory means no deficiencies found. Fair means minor issues exist but no immediate action needed. Poor means safety deficiencies require remedial action. Unsatisfactory means the dam is unsafe and immediate corrective action is required.

Yes. Use the search field above to find dams by name. You can also combine the search with state, hazard, and condition filters to narrow your results. Each dam record links to a detail page with complete information.