Browse Dams

92,628 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 92,628 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
South Fork No. 35 West Virginia Pendleton 66 High Fair 1968 Flood Risk Reduction
Tekamah-Mud Creek 9-A Nebraska Burt 66 Significant Satisfactory 1976 Flood Risk Reduction
Thompson Creek California Los Angeles 66 High Satisfactory 1928 Flood Risk Reduction
Dry Canyon California Los Angeles 66 High Satisfactory 1912 Flood Risk Reduction
Dolby Maine Penobscot 66 High Satisfactory 1906 Hydroelectric
Floodwater Ret. B-2 Colorado Larimer 66 High Satisfactory 1982 Flood Risk Reduction
Licking Run Dam Virginia Fauquier 66 High Satisfactory — Flood Risk Reduction
Waubonsie Cr. Watershed Site 3-11 Iowa Mills 66 Low Not Rated 1989 Fire Protection, Stock, Or ...
Red Dog Tailings Back Dam Alaska Northwest Arctic Borough 66 High Satisfactory 2010 Other
Lake Moncrief Dam Texas Parker 66 High Fair 1979 Irrigation
North Pigeon Cr Watershed Site 17 Iowa Pottawattamie 66 Low Not Rated 1973 Fire Protection, Stock, Or ...
Peabody Coulterville/Gateway/Slurry Cell 5 Dam Illinois Randolph 66 Low Not Available — Other
Easton Diversion Dam Washington Kittitas 66 High Not Available 1929 Irrigation
Gregg Falls New Hampshire Hillsborough 66 High Satisfactory 1917 Hydroelectric
Garrison Creek Dam Oklahoma Sequoyah 66 High Satisfactory 2003 Water Supply
Jennings Creek #17 Dam Tennessee Macon 66 High Satisfactory 1964
Kincaid Creek Dam Kentucky Pendleton 66 High Poor 1961 Recreation
Papio Creek 13 - Youngman Nebraska Douglas 66 High Satisfactory 2006 Flood Risk Reduction
Pa-480 Pennsylvania Washington 66 High Satisfactory 1979 Flood Risk Reduction
Hoosier Energy Reservoir Dam Indiana Sullivan 66 High Satisfactory 1980 Water Supply
W Fork Pt Remove Creek Wid Site 05 Arkansas Franklin 66 Low Satisfactory 1963 Flood Risk Reduction
Red Rock Detention Dam Nevada Clark 66 High Fair 1987 Flood Risk Reduction
Greenleaf - Choccolocco Site 2 Alabama Calhoun 66 High Not Rated 1969 Flood Risk Reduction
Red Oak Lower Dam Arkansas Garland 66 Significant Fair 1999 Recreation
Big Bear Lake West Virginia Preston 66 Significant Satisfactory 1972 Recreation
Fresh Water Impoundment West Virginia Mingo 66 Significant Not Available — Water Supply
Lars Montana Chouteau 66 Low — 1950 Irrigation
Gillespie Arizona Maricopa 66 Significant Fair 1921 Irrigation
Morris California Mendocino 66 High Satisfactory 1927 Water Supply
Rockcliff West Virginia Hardy 66 Low Not Rated 1968 Recreation
Alessandro California Riverside 66 High Satisfactory 1956 Flood Risk Reduction
Carriage Park Dam #1 North Carolina Henderson 66 High Fair 2004 Recreation
White River Shale Retention Utah Uintah 66 Low Not Rated 1983 Flood Risk Reduction
Jackson Reservoir Dam Arkansas Pulaski 66 High Satisfactory 1939 Water Supply
Ldg1 Florida Walton 66 Undetermined Not Rated —
Shephard Lake Dam North Carolina Clay 66 Significant Satisfactory — Recreation
Holmes Utah Davis 66 High Satisfactory 1922 Irrigation
Sessions Creek Dam Michigan Ionia 66 Significant Satisfactory 1981 Recreation
Tipton Pennsylvania Blair 66 High Fair 1924 Water Supply
Rock Lake Village Dam Missouri Johnson 66 High Satisfactory 2006
Lake William California Napa 66 High Satisfactory 1960 Water Supply
Dow Lake Dam Ohio Athens 66 High Fair 1959 Recreation
Holmes Harbor Reclaimed Water Ponds Washington Island 66 Significant Fair 1994 Other
S-155/L-112 Florida Hillsborough 66 High Not Rated 1981 Flood Risk Reduction
Mcdonough #1 Colorado Saguache 66 Low Not Rated 1950 Irrigation
Hargus Lake Dam Ohio Pickaway 66 High Poor 1956 Recreation
Coyote Colorado Moffat 66 Low Not Rated 1977 Tailings
Sulphur Creek WS SCS Site 2 Dam Texas Lampasas 66 High Fair 1959 Flood Risk Reduction
Martin County Water District No 1 Dam Kentucky Martin 66 High Poor 1969 Water Supply
LITTLE KY RIVER MPS 1 Kentucky Henry 66 High Fair 1967 Flood Risk Reduction

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.