Browse Dams
92,766 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 92,766 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 |
|---|---|---|---|---|---|---|---|
| Pine Flat Dam | California | Fresno | 440 | High | Not Available | 1954 | Flood Risk Reduction |
| Round Butte | Oregon | Jefferson | 440 | High | Fair | 1964 | Hydroelectric |
| New Waddell Dam | Arizona | Maricopa | 440 | High | Not Available | 1992 | 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 |
| Big Groundhog Slurry Impoundment | Kentucky | Pike | 412 | High | Not Available | - | Tailings |
| Swift No. 1 | Washington | Skamania | 412 | High | Fair | 1958 | Hydroelectric |
| Mammoth Pool | California | Madera | 411 | High | Satisfactory | 1960 | Hydroelectric |
| Harmar Refuse Bank | Pennsylvania | Allegheny | 410 | High | Satisfactory | 1957 | Other |
| Four Seam Slurry Dam | Kentucky | Perry | 410 | High | Not Available | - | Tailings |
| Hell Hole | California | Placer | 410 | High | Fair | 1966 | Irrigation |
| Tinsley Branch Refuse Impoundment | West Virginia | Logan | 405 | Undetermined | Not Rated | 2005 | Tailings |
| Navajo Dam | New Mexico | San Juan | 402 | High | Not Available | 1963 | Flood Risk Reduction |
| 1 West | Arizona | Graham | 400 | Low | Not Available | - | Tailings |
| 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 |
| Summersville Dam | West Virginia | Nicholas | 390 | High | Not Available | 1965 | Flood Risk Reduction |
| Blue Mesa Dam | Colorado | Gunnison | 390 | High | Not Available | 1966 | Flood Risk Reduction |
| Diablo | Washington | Whatcom | 389 | High | Satisfactory | 1929 | Hydroelectric |
| Cherry Tree Hollow Refuse Facility | West Virginia | Boone | 385 | High | Not Available | - | Tailings |
| Jocassee | South Carolina | Pickens | 385 | High | Satisfactory | 1973 | Hydroelectric |
| 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 |
| Grizzly Gulch Tailings Dam | South Dakota | Lawrence | 380 | High | Satisfactory | 1998 | Tailings |
| Cumberland No. 1 Slurry Pond 1 | Pennsylvania | Greene | 380 | High | Satisfactory | 1984 | Other |
| Green Peter Dam | Oregon | Linn | 378 | High | Not Available | 1967 | Flood Risk Reduction |
| Clay Hollow Slurry Impoundment | Kentucky | Letcher | 375 | High | Not Available | - | Tailings |
| Right Fork Dam | Kentucky | Harlan | 370 | High | Not Available | - | Water Supply |
| Ragland Slurry Impoundment | West Virginia | Mingo | 370 | High | Not Available | - | Tailings |
| Cumberland No. 2 Slurry Pond | Pennsylvania | Greene | 370 | High | Satisfactory | - | Other |
| Upper Lick Branch Slurry Impoundment | Kentucky | Pike | 370 | High | Not Available | - | Tailings |
| Jacks Branch Slurry Impoundment | West Virginia | Boone | 365 | High | Not Available | - | Tailings |
| Stonecoal Branch Slurry Dam | Kentucky | Perry | 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 |
| Bad Creek 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 |
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.