Browse Dams

92,766 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 92,766 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
Smoky Canyon No 2 Idaho Caribou 108 Significant Satisfactory 1992 Tailings
Devils Gate California Los Angeles 108 High Satisfactory 1920 Flood Risk Reduction
Crystal Lake Wyoming Laramie 108 High Fair 1922 Water Supply
Coffeen Gmf Gypsum Stack Dam Illinois Montgomery 108 High Not Available - Debris Control
Strip Mining Impoundment Dam No 1 Alabama Walker 108 Significant Not Rated 1970 Other
Shearon Harris Nuclear Power Plant Main Dam North Carolina Chatham 108 Significant - 1983 Hydroelectric
Beaver Lake Dam Nebraska Cass 108 High Poor 1973 Recreation
Loon Lake Main California El Dorado 108 Significant Satisfactory 1963 Hydroelectric
Arclar/Willow Lake/Refuse Area 2 Dam Illinois Saline 108 High Not Available - Tailings
Park Creek Colorado Larimer 108 High Satisfactory 1970 Irrigation
Joe Pool Dam Texas Dallas 108 High Not Available 1986 Flood Risk Reduction
Temple Terrace (Sw) Florida Hillsborough 108 Significant Not Rated - Tailings
Beaver Creek Reservoir Dam Montana Hill 108 High Fair 1974 Irrigation
Long Lake Crescent Washington Lincoln 108 High Satisfactory 1915 Hydroelectric
Mill #3 Tailings Pond Nevada Elko 107 Low Not Available - Tailings
Great Falls-Dearborn Main and Headworks Spillways South Carolina Chester 107 Low Satisfactory 1907 Hydroelectric
Frye Mesa Arizona Graham 107 High Satisfactory 1929 Water Supply
Russell Creek Reservoir Dam Georgia - 107 High Satisfactory -
Upper North River #77 Virginia Augusta 107 High Satisfactory 1966 Flood Risk Reduction
Red Creek (Duchesne) Utah Duchesne 107 High Fair 1960 Irrigation
Harlan County Dam Nebraska Harlan 107 High Not Available 1952 Flood Risk Reduction
Jeffrey Energy Center- Make Up Lake Dam Kansas Pottawatomie 107 High Satisfactory 1977 Other
San Andreas California San Mateo 107 High Fair 1870 Water Supply
Elmwood Tailings Dam Tennessee Smith 107 Significant Satisfactory 1974 Tailings
Maloney California Contra Costa 107 High Satisfactory 1960 Water Supply
Lake Curry California Napa 107 High Poor 1926 Other
Elk City Dam Kansas Montgomery 107 High Not Available 1966 Flood Risk Reduction
Truscott Brine Dam Texas Knox 107 High Not Available 1983 Other
Lake Marburg Pennsylvania York 107 High Satisfactory 1967 Other
Elk City Dam - Elk City Levee Kansas Montgomery 107 High Not Available 1966 Flood Risk Reduction
Lake Arrowhead Dam Georgia Cherokee 107 High Satisfactory 1974 Recreation
Rocky River Main Dam Connecticut Litchfield 107 High Satisfactory 1929 Hydroelectric
Contra Loma Dam California Contra Costa 107 High Not Available 1967 Water Supply
Morony Montana Cascade 107 High Satisfactory 1929 Hydroelectric
Germantown Dam Ohio Montgomery 107 High Fair 1922 Flood Risk Reduction
Gold Gulch 1a Arizona Gila 106 Significant Satisfactory 1995 Flood Risk Reduction
Two Buttes Colorado Baca 106 High Satisfactory 1908 Recreation
London Mills Tailings Pond Dam Tennessee Polk 106 Low Satisfactory 1944
Delta Dam New York Oneida 106 High Fair 1912 Navigation
Prado Dam California Riverside 106 High Not Available 1941 Flood Risk Reduction
Main Pls Arizona Pinal 106 Significant Satisfactory 2008 Other
Kansas Pottawatomie 106 Undetermined - - Other
West Fork of Mill Creek Dam Ohio Hamilton 106 High Not Available 1952 Flood Risk Reduction
Mitchell Alabama Chilton 106 High Fair 1923 Hydroelectric
Terrapin Creek WS Dam Site 22 Alabama Cleburne 106 Low Not Rated 1968 Flood Risk Reduction
Wright Patman Dam Texas Bowie 106 High Not Available 1954 Flood Risk Reduction
Waurika Dam Oklahoma Jefferson 106 High Not Available 1977 Flood Risk Reduction
Windsor Park Dam New York Erie 106 Low Not Rated 2006 Other
Murphy Dam New Hampshire Coos 106 High Not Rated 1938 Recreation
Bair Montana Meagher 106 High Satisfactory 1939 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.