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 |
|---|---|---|---|---|---|---|---|
| Sylvia Lake Dam Grays Harbor Cnty | Washington | Grays Harbor | 23 | Significant | Poor | 1918 | Recreation |
| Finley Ranch Reservoir | Washington | Benton | 23 | High | Satisfactory | 2013 | Irrigation |
| Roosevelt Reservoir | Washington | King | 23 | High | Satisfactory | 1910 | Water Supply |
| Mill Creek Canyon Stormwater Detention D | Washington | King | 22 | High | Satisfactory | 1982 | Flood Risk Reduction |
| Devils Hole Dam | Washington | Kitsap | 22 | Low | Poor | 1959 | Recreation |
| Tahuyeh Lake Dam | Washington | Kitsap | 22 | High | Satisfactory | 1961 | Recreation |
| Orchards Block 92 Dam | Washington | Walla Walla | 22 | Low | — | 1992 | Irrigation |
| Wood Reservoir Dam No 2 | Washington | Chelan | 22 | High | Satisfactory | 1989 | Irrigation |
| Everett Reservoir No 3 | Washington | Snohomish | 22 | High | Satisfactory | 1923 | Water Supply |
| George Deruyter & Son Dairy Lagoon 3 | Washington | Yakima | 22 | High | — | 2022 | Other |
| Issaquah Highlands Falls Pond Dam | Washington | King | 22 | High | Satisfactory | 2008 | Flood Risk Reduction |
| Pumping Pond Dike | Washington | Whatcom | 22 | Low | Satisfactory | 1960 | Hydroelectric |
| Pigeon Creek No 1 Stormwater Detention D | Washington | Snohomish | 22 | Significant | Fair | 1990 | Flood Risk Reduction |
| Belfair Wwtp Treated Water Storage Pond | Washington | Mason | 22 | High | Poor | 2014 | Other |
| Selah Home Ranch Reservoir | Washington | Yakima | 22 | High | Satisfactory | 2009 | Irrigation |
| Garvey Dam | Washington | Stevens | 22 | Low | — | 1986 | Irrigation |
| Eightmile Lake Outlet Dam | Washington | Chelan | 22 | High | Poor | 1933 | Irrigation |
| Hog Lake Dam | Washington | Spokane | 22 | High | Fair | 1957 | Recreation |
| Port of Sunnyside Anaerobic Pretreatment System | Washington | Yakima | 22 | High | Satisfactory | 2015 | Other |
| Great Depression Dam | Washington | Chelan | 22 | High | Fair | 1998 | Irrigation |
| Wood Reservoir Dam No 1 | Washington | Chelan | 22 | High | Satisfactory | 1991 | Irrigation |
| Loutsis Dam | Washington | King | 22 | Low | Satisfactory | 1970 | Irrigation |
| Tapps Lake Backflow Prevention Structure | Washington | Pierce | 22 | High | Satisfactory | 2007 | Recreation |
| Homestead Lake Dam | Washington | Pend Oreille | 22 | Low | — | 1971 | Recreation |
| Bacchus Dam | Washington | Franklin | 22 | Low | — | 1973 | Irrigation |
| Conger Lake Dam | Washington | Pend Oreille | 22 | Low | — | 1926 | Recreation |
| Chambers Creek Reservoir Dam | Washington | Pierce | 22 | Low | — | 1970 | Water Supply |
| Davenport Sewage Lagoon No 4 | Washington | Lincoln | 22 | High | Fair | 1987 | Other |
| South Fork Mccorkle Creek Detention Dam | Washington | Cowlitz | 22 | High | Fair | 1989 | Flood Risk Reduction |
| Upper Sunlight Lake Dam | Washington | Kittitas | 22 | High | Satisfactory | 1967 | Irrigation |
| Rio Mount Dam | Washington | Snohomish | 22 | Low | — | 1979 | Recreation |
| Ob-3 Warden Digester Lagoon | Washington | Grant | 21 | High | Satisfactory | 2018 | Other |
| Chiawana Gleed Ranch Dam | Washington | Yakima | 21 | High | Fair | 2003 | Irrigation |
| Trossachs Detention Pond Pc-2 | Washington | King | 21 | High | Satisfactory | 2002 | Flood Risk Reduction |
| Harbor Hill North Pond | Washington | Pierce | 21 | High | Satisfactory | 2014 | Flood Risk Reduction |
| Watts Bros Organic Dairy Lagoon 2 | Washington | Benton | 21 | Significant | Fair | 2007 | Other |
| Durhack Dam No 4 | Washington | San Juan | 21 | Low | — | 1968 | Recreation |
| Watts Bros Organic Dairy Lagoon 3 | Washington | Benton | 21 | Significant | Fair | 2007 | Other |
| Dawn Lake Dam | Washington | Clallam | 21 | High | Satisfactory | 1950 | Recreation |
| Unruh Reservoir Dam | Washington | Whatcom | 21 | Low | — | 1959 | Irrigation |
| Cascade Lake Dam | Washington | San Juan | 21 | High | Poor | 1915 | Hydroelectric |
| Tukwila South Project South Pond | Washington | King | 21 | Low | Satisfactory | 2011 | Flood Risk Reduction |
| Upper Mill Creek Stormwater Detention Da | Washington | King | 21 | High | Satisfactory | 1990 | Flood Risk Reduction |
| Sunny Dene Dairy Waste Pond | Washington | Yakima | 21 | Significant | Fair | 2004 | Other |
| Olympic Orchards Dam 2 | Washington | Yakima | 21 | High | Fair | 1985 | Irrigation |
| Centralia Coal Mine Dam No 3c East | Washington | Lewis | 21 | Significant | Satisfactory | 1987 | Tailings |
| Watts Bros Organic Dairy Lagoon 1 | Washington | Benton | 21 | Significant | Fair | 2007 | Other |
| Olympic Orchards Dam 1 | Washington | Yakima | 21 | High | Poor | 1985 | Irrigation |
| Centralia Coal Mine Dam No 5c | Washington | Lewis | 20 | Low | — | 1970 | Tailings |
| North Aeration Stabilization Basin Lady Island | Washington | Clark | 20 | Significant | Satisfactory | 1977 | Other |
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.