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Browse Dams

16,894 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 16,894 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.

Name State County Height (ft) Hazard Condition Year Purpose
Cedar Springs California San Bernardino 249 High Fair 1971 Water Supply
Mount Morris Dam New York Livingston 249 High Not Available 1952 Flood Risk Reduction
Lost Creek Dam Utah Morgan 248 High Not Available 1966 Irrigation
Norfork Dam Arkansas Baxter 248 High Not Available 1944 Flood Risk Reduction
Ball Mountain Dam Vermont Windham 247 High Not Available 1961 Flood Risk Reduction
Browns Run Impoundment West Virginia Marshall 246 High Not Available — Tailings
Pueblo Dam Colorado Pueblo 245 High Not Available 1975 Flood Risk Reduction
Oahe Dam South Dakota Stanley 245 High Not Available 1966 Flood Risk Reduction
Cobble Mountain Reservoir Dam Massachusetts Hampden 245 High Satisfactory 1930 Water Supply
Horsetooth-Dixon Canyon Colorado Larimer 245 High Not Available 1949 Irrigation
Morris California Los Angeles 245 High Satisfactory 1935 Other
Oahe Dam - Fort Yates Flood Protection Project South Dakota Sioux 245 High Not Available 1966 Flood Risk Reduction
Hughes Hollow Slurry Impoundment Pennsylvania Greene 245 High Satisfactory — Other
Arthur R. Bowman Dam Oregon Crook 245 High Not Available 1961 Flood Risk Reduction
Labelle Slurry Pond #3 Pennsylvania Fayette 245 High Satisfactory 1958 Other
Lower Bear California Amador 245 High Satisfactory 1952 Hydroelectric
Pactola Dam South Dakota Pennington 245 High Not Available 1956 Flood Risk Reduction
Kortes Dam Wyoming Carbon 244 High Not Available 1951 Hydroelectric
Mcelroy Run Dam West Virginia Pleasants 243 High Satisfactory 1978 Tailings
DeGray Dam - Saddle Dike Arkansas Clark 243 High Not Available 1969 Flood Risk Reduction
Cardinal Fly Ash No. 1 Dam Ohio Jefferson 242 High Satisfactory 1974 Tailings
Applegate Dam Oregon Jackson 242 High Not Available 1980 Flood Risk Reduction
Clifford D. Craig Memorial Dam Virginia Roanoke 241 High Fair — Water Supply
Twitchell Dam California Santa Barbara 241 High Not Available 1958 Flood Risk Reduction
Blakely Mountain Dam Arkansas Garland 240 High Not Available 1953 Flood Risk Reduction
Deer Creek Dam Utah Wasatch 240 High Not Available 1941 Irrigation
Anderson California Santa Clara 240 High Unsatisfactory 1950 Water Supply
Francis E. Walter Dam Pennsylvania Luzerne 239 High Not Available 1961 Flood Risk Reduction
Stampede Dam California Sierra 239 High Not Available 1970 Irrigation
Mount St. Helens Sediment Retention Structure Washington Cowlitz 239 High Not Available 1988 Flood Risk Reduction
Smith Mountain Combination Pump Storage Virginia Pittsylvania 237 High Satisfactory 1964 Hydroelectric
Mayflower Pond # 5 Colorado Summit 237 High Not Available — Tailings
El Capitan California San Diego 237 High Poor 1934 Water Supply
Cheoah North Carolina Graham 236 High Satisfactory 1919 Hydroelectric
Caonillas Dam Puerto Rico Jayuya 235 High Satisfactory 1948 Hydroelectric
Howard A. Hanson Dam Washington King 235 High Not Available 1962 Flood Risk Reduction
Twelvepole Refuse Impoundment West Virginia Mingo 235 High Not Available — Tailings
Robinson Tailing Pond #1dam Colorado Summit 235 High Not Available — Other
Conchas Dam New Mexico San Miguel 235 High Not Available 1940 Flood Risk Reduction
Smith Oregon Linn 235 High Unsatisfactory 1963 Hydroelectric
Saluda South Carolina Lexington 234 High Satisfactory 1930 Hydroelectric
Tygart Dam West Virginia Taylor 234 High Not Available 1938 Flood Risk Reduction
Buford Dam Georgia Gwinnett 231 High Not Available 1958 Flood Risk Reduction
L. L. Anderson California Placer 231 High Satisfactory 1965 Irrigation
Los Vaqueros California Contra Costa 231 High Satisfactory 1997 Water Supply
Raccoon Mountain Dam Tennessee Marion 230 High Not Available 1978 Hydroelectric
Calderwood Tennessee Blount 230 High Satisfactory 1930 Hydroelectric
Horsetooth-Soldier Canyon Colorado Larimer 230 High Not Available 1949 Irrigation
Masonry Dam Washington King 230 High Satisfactory 1914 Hydroelectric
John Day Lock and Dam Oregon Klickitat 230 High Not Available 1968 Navigation

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.