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Browse Dams

3,540 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 3,540 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
Chess Refuse Disposal Area No. 1 West Virginia Boone 780 High Not Available — Tailings
Hoover Dam Nevada Clark 730 High Not Available 1935 Hydroelectric
Dworshak Dam Idaho Clearwater 717 High Not Available 1973 Flood Risk Reduction
Glen Canyon Dam Arizona Coconino 710 High Not Available 1963 Hydroelectric
Abner Fork Dam Kentucky Harlan 700 High Not Available — Water Supply
Long Fork Slurry Impoundment Kentucky Pike 665 High Not Available — Tailings
Sidney Slurry Impoundment Kentucky Pike 665 High Not Available — Tailings
Killarney Slurry Impoundment West Virginia Raleigh 657 High Not Available — Tailings
New Melones Dam California Calaveras 625 High Not Available 1979 Hydroelectric
Jake Gore Slurry Impoundment West Virginia Boone 610 High Not Available — Tailings
Shasta Dam California Shasta 602 High Not Available 1945 Hydroelectric
Hungry Horse Dam Montana Flathead 564 High Not Available 1953 Flood Risk Reduction
Aldrich Branch Slurry Impoundment West Virginia Mingo 560 High Not Available — Tailings
Grand Coulee Dam Washington Okanogan 550 High Not Available 1941 Flood Risk Reduction
Half Mile Dam Kentucky Leslie 545 High Not Available — Water Supply
Rocklick Slurry Impoundment West Virginia Boone 540 High Not Available — Tailings
Trinity Dam California Trinity 538 High Not Available 1962 Hydroelectric
Bloss Branch Slurry Dam Kentucky Clay 535 High Not Available — Tailings
Yellowtail Dam Montana Big Horn 525 High Not Available 1966
Jarrells Branch Slurry Impoundment West Virginia Boone 520 High Not Available — Tailings
Cougar Dam Oregon Lane 519 High Not Available 1963 Flood Risk Reduction
Flaming Gorge Dam Utah Daggett 502 High Not Available 1964 Flood Risk Reduction
Rock House Branch Slurry Impoundment West Virginia Logan 482 High Not Available — Tailings
Oldhouse Branch Slurry Impoundment Kentucky Letcher 481 High Not Available — Tailings
Fontana Dam North Carolina Graham 480 High Not Available 1944 Flood Risk Reduction
Adams Fork Slurry Dam Kentucky Leslie 480 High Not Available — Water Supply
Lotts Branch Slurry Impoundment West Virginia Boone 478 High Not Available — Tailings
Sukey Branch Slurry Impoundment Kentucky Pike 478 High Not Available — Tailings
Morrow Point Dam Colorado Montrose 468 High Not Available 1968 Hydroelectric
Carters Main Dam Georgia Murray 464 High Not Available 1974 Hydroelectric
Detroit Dam Oregon Linn 463 High Not Available 1953 Flood Risk Reduction
Anderson Ranch Dam Idaho Elmore 456 High Not Available 1950 Flood Risk Reduction
Rob Fork Slurry Impoundment Kentucky Pike 450 High Not Available — Tailings
Cow Branch Slurry Impoundment Kentucky Pike 442 High Not Available — Tailings
Pine Flat Dam California Fresno 440 High Not Available 1954 Flood Risk Reduction
Oldhouse Branch Impoundment No. 3 West Virginia Logan 440 High Not Available — Tailings
New Waddell Dam Arizona Maricopa 440 High Not Available 1992 Flood Risk Reduction
Turkeypen Branch Slurry Impoundment Kentucky Harlan 425 High Not Available — Tailings
Mud Mountain Dam Washington King 425 High Not Available 1948 Flood Risk Reduction
Libby Dam Montana Lincoln 422 High Not Available 1973 Hydroelectric
Razorblade Branch Slurry Impoundment Kentucky Letcher 422 High Not Available — Tailings
Burke Branch Slurry Impoundment Kentucky Pike 421 High Not Available — Tailings
Owyhee Dam Oregon Malheur 417 High Not Available 1932 Irrigation
Ten Mile Pond #3 Dam Colorado Summit 416 High Not Available — Tailings
Bean Hollow Slurry Impoundment (Plant 1 Crdf) West Virginia Boone 415 High Not Available — Tailings
Big Groundhog Slurry Impoundment Kentucky Pike 412 High Not Available — Tailings
Four Seam Slurry Dam Kentucky Perry 410 High Not Available — Tailings
Navajo Dam New Mexico San Juan 402 High Not Available 1963 Flood Risk Reduction
1 West Arizona Graham 400 Low Not Available — Tailings
Jordanelle Dam Utah Wasatch 391 High Not Available 1993 Water Supply

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.