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.