Browse Dams
17,049 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 17,049 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 |
|---|---|---|---|---|---|---|---|
| New Waddell Dam | Arizona | Maricopa | 440 | High | Not Available | 1992 | Flood Risk Reduction |
| 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 |
| Mud Mountain Dam | Washington | King | 425 | High | Not Available | 1948 | Flood Risk Reduction |
| Turkeypen Branch Slurry Impoundment | Kentucky | Harlan | 425 | High | Not Available | - | Tailings |
| Libby Dam | Montana | Lincoln | 422 | High | Not Available | 1973 | Hydroelectric |
| Razorblade Branch Slurry Impoundment | Kentucky | Letcher | 422 | High | Not Available | - | Tailings |
| Pyramid | California | Los Angeles | 422 | High | Fair | 1974 | Water Supply |
| 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 |
| Swift No. 1 | Washington | Skamania | 412 | High | Fair | 1958 | Hydroelectric |
| Big Groundhog Slurry Impoundment | Kentucky | Pike | 412 | High | Not Available | - | Tailings |
| Mammoth Pool | California | Madera | 411 | High | Satisfactory | 1960 | Hydroelectric |
| Hell Hole | California | Placer | 410 | High | Fair | 1966 | Irrigation |
| Harmar Refuse Bank | Pennsylvania | Allegheny | 410 | High | Satisfactory | 1957 | Other |
| 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 |
| Little Blue Run | Pennsylvania | Beaver | 400 | High | Fair | 1977 | Other |
| Brownlee | Oregon | Baker | 395 | High | Fair | 1958 | Hydroelectric |
| Jordanelle Dam | Utah | Wasatch | 391 | High | Not Available | 1993 | Water Supply |
| Shumate Creek Slurry Impoundment | West Virginia | Raleigh | 390 | High | Not Available | - | Tailings |
| Blue Mesa Dam | Colorado | Gunnison | 390 | High | Not Available | 1966 | Flood Risk Reduction |
| Summersville Dam | West Virginia | Nicholas | 390 | High | Not Available | 1965 | Flood Risk Reduction |
| Diablo | Washington | Whatcom | 389 | High | Satisfactory | 1929 | Hydroelectric |
| Jocassee Main Dam | South Carolina | Pickens | 385 | High | Satisfactory | 1973 | Hydroelectric |
| Cherry Tree Hollow Refuse Facility | West Virginia | Boone | 385 | High | Not Available | - | Tailings |
| Amonate Slurry Impoundment | West Virginia | McDowell | 384 | High | Not Available | - | Tailings |
| B.F. Sisk Dam | California | Merced | 382 | High | Not Available | 1967 | Hydroelectric |
| San Gabriel | California | Los Angeles | 381 | High | Satisfactory | 1937 | Hydroelectric |
| Cumberland No. 1 Slurry Pond 1 | Pennsylvania | Greene | 380 | High | Satisfactory | 1984 | Other |
| Grizzly Gulch Tailings Dam | South Dakota | Lawrence | 380 | High | Satisfactory | 1998 | Tailings |
| Green Peter Dam | Oregon | Linn | 378 | High | Not Available | 1967 | Flood Risk Reduction |
| Clay Hollow Slurry Impoundment | Kentucky | Letcher | 375 | High | Not Available | - | Tailings |
| Upper Lick Branch Slurry Impoundment | Kentucky | Pike | 370 | High | Not Available | - | Tailings |
| Cumberland No. 2 Slurry Pond | Pennsylvania | Greene | 370 | High | Satisfactory | - | Other |
| Ragland Slurry Impoundment | West Virginia | Mingo | 370 | High | Not Available | - | Tailings |
| Right Fork Dam | Kentucky | Harlan | 370 | High | Not Available | - | Water Supply |
| Stonecoal Branch Slurry Dam | Kentucky | Perry | 365 | High | Not Available | - | Tailings |
| Jacks Branch Slurry Impoundment | West Virginia | Boone | 365 | High | Not Available | - | Tailings |
| Pacoima | California | Los Angeles | 365 | High | Satisfactory | 1929 | Flood Risk Reduction |
| Cunningham Hollow Slurry Impoundment | West Virginia | Marshall | 363 | High | Not Rated | 2003 | Other |
| Boundary | Washington | Pend Oreille | 360 | High | Fair | 1967 | Hydroelectric |
| Main Dam | South Carolina | Oconee | 360 | High | Satisfactory | 1991 | Hydroelectric |
| Lovely Branch Slurry Dam | Kentucky | Leslie | 360 | High | Not Available | - | Water Supply |
| Ben Creek Slurry Impoundment | West Virginia | Mingo | 358 | High | Not Available | - | Tailings |
| Theodore Roosevelt Dam | Arizona | Maricopa | 357 | High | Not Available | 1911 | Hydroelectric |
| Big Hollow Slurry Impoundment | Kentucky | Martin | 356 | High | Not Available | - | Tailings |
| Warm Springs Dam | California | Sonoma | 356 | High | Not Available | 1983 | 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.