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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.

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Name State County Height (ft) Hazard Condition Year Purpose
Lake Connell Alaska Ketchikan Gateway Borough 96 High Satisfactory 1953 Water Supply
Shasta River California Siskiyou 96 High Satisfactory 1928 Water Supply
Berlin Dam Ohio Mahoning 96 High Not Available 1943 Flood Risk Reduction
Misselbeck California Shasta 96 High Poor 1920 Other
Lower Willow Creek Dam Montana Granite 96 High Poor 1962 Irrigation
Las Llajas California Ventura 96 High Satisfactory 1981 Flood Risk Reduction
Halligan Colorado Larimer 95 High Fair 1970 Irrigation
Elmer J. Chesbro California Santa Clara 95 High Satisfactory 1955 Flood Risk Reduction
Little River Dam North Carolina Durham 95 High Satisfactory 1984 Flood Risk Reduction
Fort Patrick Henry Dam Tennessee Sullivan 95 High Not Available 1953 Flood Risk Reduction
Kens Lake Utah San Juan 95 High Satisfactory 1981 Irrigation
Oak Creek Dam Texas Coke 95 High Fair 1952 Water Supply
Senator Wash-Xanyō Xamshré Dike California Imperial 95 High Not Available 1966 Hydroelectric
Stonewall Jackson Dam West Virginia Lewis 95 High Not Available 1986 Flood Risk Reduction
Matanzas Creek California Sonoma 95 High Satisfactory 1963 Flood Risk Reduction
Robinson Fork (Pa-647) Pennsylvania Washington 95 High Satisfactory 1977 Flood Risk Reduction
Town Creek Reservoir Dam Georgia Jones 95 High Satisfactory 1993 Water Supply
Galla Creek Wid Site 1 Arkansas Pope 95 High Fair 1975 Water Supply
Stockton Creek California Mariposa 95 High Satisfactory 1950 Other
Big Goose Park (3rd Enl.) Wyoming Sheridan 95 High Fair 1958 Irrigation
French Lake California Nevada 95 High Satisfactory 1859 Irrigation
Crafton Hills California San Bernardino 95 High Satisfactory 2001 Water Supply
Macoupin Energy/Refuse Disposal Area 5 Illinois Macoupin 95 High Not Available 1987 Other
Mineral Point #2 Missouri Washington 95 High Satisfactory 1963 Tailings
Grayrocks Wyoming Platte 95 High Fair 1980 Other
Bell Canyon California Napa 95 High Fair 1959 Water Supply
Middle Branch Dam New York Putnam 95 High Satisfactory 1878 Water Supply
Eucha Oklahoma Delaware 95 High Fair 1952 Water Supply
Cooper Dam Texas Delta 95 High Not Available 1991 Flood Risk Reduction
Whitewater Brook Dam New Hampshire Sullivan 95 High Fair 1968 Water Supply
Whitney Point Dam New York Broome 95 High Not Available 1942 Flood Risk Reduction
Bethany Forebay California Alameda 95 High Satisfactory 1961 Water Supply
Loiza Dam Puerto Rico Trujillo Alto 95 High Satisfactory 1954 Hydroelectric
Lake Spaulding No. 3 Auxiliary California Nevada 95 High Satisfactory 1919 Hydroelectric
Cow Creek Dam No. 1 Oregon Douglas 95 High Satisfactory 2005 Irrigation
Cabin Creek Lower Colorado Clear Creek 95 High Satisfactory 1967 Hydroelectric
Railroad Canyon California Riverside 94 High Satisfactory 1928 Water Supply
North Lake Colorado Las Animas 94 High Fair 1963 Water Supply
Glendo Dike 3 Wyoming Platte 94 High Not Available 1959 Flood Risk Reduction
Friendship Park Lake Dam Ohio Jefferson 94 High Fair 1972 Recreation
Wildcat Colorado Pitkin 94 High Fair 1953 Recreation
Lower Chase Creek Arizona Greenlee 94 High Satisfactory 1987 Other
Island Park Dam Idaho Fremont 94 High Not Available 1938 Irrigation
Potomac Creek Dam #1 Virginia Stafford 94 High Satisfactory — Flood Risk Reduction
Indian Run Pennsylvania Schuylkill 94 High Satisfactory 1926 Water Supply
Mt. Elbert Forebay Dam Colorado Lake 94 High Not Available 1981 Hydroelectric
Bear Creek Oregon Clatsop 94 High Poor 1953 Water Supply
Conowingo Maryland Cecil 94 High Satisfactory 1928 Hydroelectric
Concow California Butte 94 High Satisfactory 1925 Water Supply
Helena Valley Dam Montana Lewis and Clark 94 High Not Available 1959 Irrigation

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.