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Browse Dams

11,360 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 11,360 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
Fort Knox Tailings Dam Alaska Fairbanks North Star Borough 350 Significant Fair 1996 Water Supply
Mill 5/6 Center Tailings Storage Facility Nevada Eureka 300 Significant Fair 1991 Tailings
Erie Basin 2 Minnesota St. Louis 250 Significant Satisfactory 1978 Tailings
Midas Tailings Storage Facility Ph Iv Dam Nevada Elko 250 Significant Poor 1998 Tailings
Mckays Point Diversion California Tuolumne 242 Significant Satisfactory 1989 Hydroelectric
#1 Tailings Pond Colorado Eagle 235 Significant Not Available — Tailings
Simplot Phosphates Tailings Dam Utah Uintah 230 Significant Not Rated 1973
Silver Basin 1 Arizona Graham 225 Significant Not Available — Tailings
Mill 5/6 East Tailings Storage Facility Nevada Eureka 220 Significant Satisfactory 2019 Tailings
A-A Tails Dam Nevada Eureka 220 Significant Fair 1989 Tailings
Brush Creek California El Dorado 213 Significant Satisfactory 1970 Hydroelectric
Green Lake Alaska City and Borough of Sitka 210 Significant Satisfactory 1982 Hydroelectric
Erie Basin 1 Minnesota St. Louis 200 Significant Satisfactory 1978 Tailings
Mineral Park Tailings Dam Arizona Mohave 200 Significant Not Available — Tailings
Essar Steel Tailings Basin Minnesota Itasca 200 Significant Satisfactory 2011 Tailings
Lake Arrowhead California San Bernardino 190 Significant Poor 1922 Water Supply
Section 22 Midas Tailings Storage Facility Dam Nevada Elko 186 Significant Satisfactory — Tailings
Mill #4 Tailings #1 Dam Nevada Eureka 182 Significant Not Rated 1989 Tailings
Lone Tree Section 23 Tails Dam Nevada Humboldt 180 Significant Fair 1996 Flood Risk Reduction
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
Refuse Disposal Area Illinois Saline 175 Significant Not Available — Water Supply
Diemer No. 8 California Orange 172 Significant Satisfactory 1968 Water Supply
Junction California El Dorado 168 Significant Satisfactory 1962 Hydroelectric
Robert C. Byrd Locks and Dam West Virginia Mason 167 Significant Not Available 1937 Navigation
Lake Las Vegas Dam Nevada Clark 165 Significant Fair 1991 Recreation
Mill #4 Tailings #2 Dam Nevada Eureka 165 Significant Fair 1993 Tailings
Empire Mine Tailings Basin Dam Michigan Marquette 163 Significant Satisfactory 1975 Tailings
Jerritt Canyon Tailings Dam Nevada Elko 162 Significant Not Rated 1981 Tailings
Tailings Impoundment Montana Madison 155 Significant — —
Slickrock Creek California Shasta 155 Significant Satisfactory 2004 Water Supply
North Fork Dam California Placer 155 Significant Not Available 1939 Debris Control
Kennecott Smelter Tailings Pond Utah Salt Lake 154 Significant Not Rated — Tailings
Ward Impoundment (Lower) Dam West Virginia Kanawha 152 Significant Satisfactory — Tailings
East Branch Colorado Grand 150 Significant Satisfactory 1971 Water Supply
Midas Dam Tailings Storage Facility Ph V Nevada Elko 150 Significant Poor 1998 Tailings
D Tailings Arizona Pinal 150 Significant Not Available — Tailings
Rattlesnake Dam Alabama Walker 145 Significant Not Rated 1979 Other
Fmcp Cooling Pond Cell A Florida Polk 145 Significant Not Rated 1978 Tailings
Cowlitz Falls Washington Lewis 145 Significant Satisfactory 1994 Hydroelectric
Young Mill Tailings Dam Tennessee Jefferson 145 Significant Satisfactory 1998 Tailings
Centralia Coal Mine Dam No 3b Washington Lewis 140 Significant Fair 1980 Tailings
Wyandotte County Lake Dam Kansas Wyandotte 139 Significant Satisfactory 1941 Recreation
Captain Anthony Meldahl Locks and Dam Kentucky Bracken 138 Significant Not Available 1965 Navigation
Centralia Coal Mine Dam No 3c North Washington Lewis 134 Significant Satisfactory 1987 Tailings
Red River Lock and Dam 3 Louisiana Natchitoches 134 Significant Not Available 1991 Navigation
La Grange California Stanislaus 131 Significant Satisfactory 1893
Belleville Locks and Dam West Virginia Wood 130 Significant Not Available 1968 Navigation
Des Arc Bayou Wid Site 3 Arkansas White 128 Significant Fair 1979 Recreation
Isabella Fresh Water Pennsylvania Fayette 122 Significant Fair — Grade Stabilization

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.