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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.

Clear
Name State County Height (ft) Hazard Condition Year Purpose
Joe D. Waggonner, Jr. Lock and Dam Louisiana Caddo 122 Significant Not Available 1985 Navigation
Cordry Lake Dam Indiana Brown 120 Significant Fair 1969
Rosemont Colorado Teller 120 Significant Satisfactory 1961 Water Supply
Markland Locks and Dam Kentucky Gallatin 118 Significant Not Available 1964 Navigation
Inlet Control Structure Arizona Pinal 116 Significant Satisfactory 2008 Flood Risk Reduction
Gold Gulch #2 Arizona Gila 116 Significant Satisfactory 1982 Other
Bmg Mine Willow Creek Dam Nevada Lander 115 Significant Fair 1989 Recreation
Tiger Creek Regulator California Amador 115 Significant Fair 1931 Hydroelectric
Gribben Tailings Basin Dam Michigan Marquette 115 Significant Satisfactory 1977 Tailings
Wappapello Dam - Saddle Dike 1 Missouri Wayne 114 Significant Not Available 1941 Flood Risk Reduction
Wappapello Dam - Saddle Dike 2 Missouri Wayne 114 Significant Not Available 1941 Flood Risk Reduction
Wappapello Dam - Saddle Dike 3 Missouri Wayne 114 Significant Not Available 1941 Flood Risk Reduction
Thompson California Los Angeles 114 Significant Satisfactory 1925 Water Supply
Dartmoor Dam Tennessee Cumberland 114 Significant Satisfactory 1984 Recreation
Poly Met Hrf Dam Minnesota St. Louis 111 Significant — — Tailings
Willow Island Locks and Dam West Virginia Pleasants 111 Significant Not Available 1976 Navigation
Grouse Creek North Idaho Custer 110 Significant Satisfactory 1994 Tailings
Robert F. Henry Lock and Dam Alabama Lowndes 110 Significant Not Available 1974 Navigation
Russell B. Long Lock and Dam Louisiana Red River 110 Significant Not Available 1995 Navigation
Lindy Claiborne Boggs Lock and Dam Louisiana Catahoula 110 Significant Not Available 1985 Navigation
Shellcracker Lake Dam Tennessee Maury 110 Significant Satisfactory 1970
Bartow Ne A Florida Polk 110 Significant Not Rated 1960 Tailings
Pond 4 (Dam 2) Wyoming Sweetwater 110 Significant — 1992 Irrigation
Temple Terrace Cell D Florida Hillsborough 110 Significant Not Rated 1970 Tailings
Winfield Locks and Dam West Virginia Putnam 110 Significant Not Available 1937 Navigation
Floodwater Ret. B-6 Colorado Larimer 110 Significant Satisfactory 1977 Flood Risk Reduction
Temple Terrace (Sw) Florida Hillsborough 108 Significant Not Rated — Tailings
Shearon Harris Nuclear Power Plant Main Dam North Carolina Chatham 108 Significant — 1983 Hydroelectric
Strip Mining Impoundment Dam No 1 Alabama Walker 108 Significant Not Rated 1970 Other
Smoky Canyon No 2 Idaho Caribou 108 Significant Satisfactory 1992 Tailings
Loon Lake Main California El Dorado 108 Significant Satisfactory 1963 Hydroelectric
Elmwood Tailings Dam Tennessee Smith 107 Significant Satisfactory 1974 Tailings
Main Pls Arizona Pinal 106 Significant Satisfactory 2008 Other
Gold Gulch 1a Arizona Gila 106 Significant Satisfactory 1995 Flood Risk Reduction
Bradley Jxn 6 Florida Polk 105 Significant Not Rated — Tailings
Nichols (E) Florida Polk 105 Significant Not Rated — Tailings
Bradley Junction S (Ctr) Florida Polk 105 Significant Not Rated — Tailings
Keysville (S) Florida Polk 105 Significant Not Rated — Tailings
Mulberry E Florida Polk 105 Significant Not Rated — Tailings
Mulberry (2) Florida Polk 105 Significant Not Rated — Tailings
Bradley Jxn 2 Florida Polk 105 Significant Not Rated — Tailings
Bradley Junction S Florida Polk 105 Significant Not Rated — Tailings
Bradley Junction Nw Florida Polk 105 Significant Not Rated — Tailings
Mulberry (3) Florida Polk 105 Significant Not Rated — Tailings
Mulberry (12) Florida Polk 105 Significant Not Rated — Tailings
Mulberry S (1) Florida Polk 105 Significant Not Rated — Tailings
Mulberry E Florida Polk 105 Significant Not Rated — Tailings
Bradley Junction N (Ctr) Florida Polk 105 Significant Not Rated — Tailings
Mulberry S (2) Florida Polk 105 Significant Not Rated — Tailings
Mulberry Nw Florida Polk 105 Significant Not Rated — Tailings

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.