Browse Dams
835 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 835 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 |
|---|---|---|---|---|---|---|---|
| Youngs Lake New Inlet Dam | Washington | King | 20 | High | Satisfactory | 1926 | Water Supply |
| Honeymoon Lake Dam | Washington | Island | 20 | High | Satisfactory | 1969 | Recreation |
| Upper Falls Intake Dam | Washington | Spokane | 20 | Low | Satisfactory | 1922 | Hydroelectric |
| Centralia Coal Mine Dam No 5c | Washington | Lewis | 20 | Low | - | 1970 | Tailings |
| Buck Mountain Reservoir Dam No 3 | Washington | San Juan | 20 | High | Fair | 1985 | Water Supply |
| Lummi Island Estates Dam | Washington | Whatcom | 20 | High | Fair | 1963 | Recreation |
| Jones Dam | Washington | Clark | 20 | Low | - | 1977 | Irrigation |
| Roza Wasteway 6 Reregulation Reservoir | Washington | Benton | 20 | Low | - | 1988 | Irrigation |
| Mill Creek Dam Cosmopolis | Washington | Grays Harbor | 20 | High | Satisfactory | 2019 | Fish and Wildlife Pond |
| Tapps Lake Dike No 8 | Washington | Pierce | 20 | High | Satisfactory | 1911 | Recreation |
| Everett Washwater Storage Pond Dam | Washington | Snohomish | 20 | Low | - | 1985 | Other |
| Selah Naches Ranch Reservoir | Washington | Yakima | 20 | High | Satisfactory | 2004 | Irrigation |
| Moses Lake South Dam | Washington | Grant | 20 | Low | Not Available | 1961 | Irrigation |
| Connell Wastewater Lagoons | Washington | Franklin | 20 | Significant | Fair | 2000 | Other |
| North Aeration Stabilization Basin Lady Island | Washington | Clark | 20 | Significant | Satisfactory | 1977 | Other |
| Woods Reservoir Dam | Washington | San Juan | 20 | Low | - | 1972 | Irrigation |
| Walla Walla Effluent Storage Lagoon | Washington | Walla Walla | 19 | Low | Satisfactory | 2008 | Other |
| South 336th Street Stormwater Dam No 2 | Washington | King | 19 | High | Fair | 1996 | Flood Risk Reduction |
| Loreene Lake Dam | Washington | King | 19 | Low | - | 1963 | Recreation |
| Koehn Ranch Reservoir | Washington | Grant | 19 | High | Satisfactory | 2009 | Irrigation |
| Centralia Coal Mine Dam No 44 | Washington | Lewis | 19 | Low | - | 1975 | Tailings |
| Snoqualmie Falls | Washington | King | 19 | Low | Satisfactory | 1898 | Hydroelectric |
| Limekiln Dam | Washington | San Juan | 19 | Low | - | 1976 | Recreation |
| Carlisle Lake Dam | Washington | Lewis | 19 | High | Poor | 1920 | Fish and Wildlife Pond |
| Moses Lake North Dam | Washington | Grant | 19 | Low | - | 1930 | Irrigation |
| H & H Reservoir Dam No 1 | Washington | Chelan | 19 | High | Satisfactory | 1926 | Irrigation |
| Davenport Sewage Lagoon No 3 | Washington | Lincoln | 19 | High | Fair | 1987 | Other |
| Headquarters Landfill Leachate Pond | Washington | Cowlitz | 19 | Significant | Satisfactory | 1993 | Other |
| Whatcom Lake Dam | Washington | Whatcom | 19 | High | Satisfactory | 1937 | Recreation |
| Thorald Dam | Washington | San Juan | 19 | Low | - | 1988 | Irrigation |
| Goldendale Wastewater Pond 2 | Washington | Klickitat | 19 | Low | - | 1983 | Other |
| Goldendale Wastewater Pond 1b | Washington | Klickitat | 19 | Low | - | 1983 | Other |
| Agreserves Plymouth Wastewater Storage Pond | Washington | Benton | 19 | Significant | - | 2023 | Other |
| Pacific Nw Sugar CO Condensation Pond | Washington | Grant | 19 | Low | - | 1998 | Other |
| Horn School Rest Area Sewage Lagoon | Washington | Whitman | 19 | High | Satisfactory | 1996 | Other |
| Skagit Lake Dam | Washington | Skagit | 19 | Low | - | 1971 | Recreation |
| Stemilt Equalizing Reservoir | Washington | Chelan | 19 | High | Satisfactory | 1985 | Irrigation |
| Shiflett Reservoir No. 1 | Washington | Chelan | 19 | High | Fair | 1945 | Irrigation |
| Firnstahl Dam | Washington | Snohomish | 19 | Low | Poor | 1965 | Irrigation |
| Sowers Reservoir Dam | Washington | Stevens | 18 | Low | - | 1958 | Irrigation |
| Brown Dam Lincoln Co | Washington | Lincoln | 18 | Low | - | 1965 | Irrigation |
| Van Wingerden Pond 1 | Washington | Yakima | 18 | Low | Fair | 1980 | Irrigation |
| Chapman Lake Dam | Washington | Spokane | 18 | Low | - | 1940 | Recreation |
| Des Moines Ck Reg Det Facility East Berm | Washington | King | 18 | High | Satisfactory | 2009 | Flood Risk Reduction |
| Durhack Dam No 3 | Washington | San Juan | 18 | Low | - | 1968 | Recreation |
| Mill Pond Dam Klickitat Co | Washington | Klickitat | 18 | Low | - | 1951 | Recreation |
| Duncan Dam No 2 | Washington | Pend Oreille | 18 | Low | - | 1966 | Irrigation |
| Centralia Coal Mine Dam No 8a | Washington | Lewis | 18 | High | Satisfactory | 1972 | Tailings |
| Johnson Creek Reservoir Dam | Washington | Klickitat | 18 | High | Fair | 1982 | Irrigation |
| Islewood Dam | Washington | Skagit | 18 | High | Fair | 1971 | Irrigation |
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.