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 |
|---|---|---|---|---|---|---|---|
| Dagger Lake Dam | Washington | Snohomish | 10 | Low | — | 1912 | Recreation |
| Marshall Lake Dam | Washington | Pend Oreille | 10 | High | Fair | 1912 | Irrigation |
| Byron Ponds Dam | Washington | Yakima | 10 | Low | — | 1950 | Recreation |
| Bernsens 810 Reservoir Dam No 3 | Washington | Franklin | 10 | Low | — | 1979 | Irrigation |
| Wandermere Lake Dam | Washington | Spokane | 10 | Low | — | 1930 | Recreation |
| Shillapoo Lake Dikes | Washington | Clark | 10 | Low | — | 2007 | Fish and Wildlife Pond |
| Seatac Airport Pond M | Washington | King | 10 | High | Satisfactory | 2011 | Flood Risk Reduction |
| Tempo Lake Dam | Washington | Thurston | 10 | Low | — | 1960 | Recreation |
| Beehive Saddle Dam | Washington | Chelan | 10 | High | Satisfactory | 1953 | Irrigation |
| Durhack Dam No 2 | Washington | San Juan | 10 | Low | — | 1968 | Recreation |
| Armstrong Lake Dam | Washington | Mason | 10 | Low | — | 1968 | Recreation |
| Snoqualmie Mill Pond Dam | Washington | King | 10 | Low | — | 1917 | Fish and Wildlife Pond |
| Cranberry Lake Stormwater Detention Dam | Washington | Mason | 10 | High | Satisfactory | 1990 | Flood Risk Reduction |
| Waitt Lk Valley Sewage Treatment Lagoon | Washington | Stevens | 10 | Low | — | 1998 | Other |
| Cusick Polishing Lagoon | Washington | Pend Oreille | 10 | Significant | Fair | 1978 | Other |
| Youngs Lake Outlet Dam | Washington | King | 10 | High | Satisfactory | 1921 | Water Supply |
| Upper Snow Dam | Washington | Chelan | 10 | Low | Poor | 1939 | Water Supply |
| Longview Sewage Lagoon No 3 | Washington | Cowlitz | 10 | Low | — | 1987 | Other |
| Klahanie Stormwater Detention Dam No 13 | Washington | King | 10 | High | Fair | 1989 | Flood Risk Reduction |
| Three Rivers Mill Pond Dam | Washington | Snohomish | 10 | Low | — | 1946 | Fire Protection, Stock, Or ... |
| Spscc Stormwater Pond F | Washington | Thurston | 10 | High | Satisfactory | 2005 | Flood Risk Reduction |
| Upper Blackhorse Dam | Washington | Spokane | 10 | Low | Fair | 1960 | Fish and Wildlife Pond |
| Connell Wastewater Lagoon 4 | Washington | Franklin | 10 | Significant | Fair | 2009 | Other |
| Sawyer Lake Outlet Structure | Washington | King | 10 | Low | — | 1952 | Recreation |
| Centralia Coal Mine Dam No 20c | Washington | Thurston | 10 | Low | — | 1981 | Tailings |
| Chase Lake Stormwater Detention Dam | Washington | Snohomish | 10 | High | — | 1990 | Flood Risk Reduction |
| Flying Goose Ranch Wetland Dam No 1 | Washington | Pend Oreille | 10 | Low | — | 1995 | Fish and Wildlife Pond |
| Lake Kittyprince Dam | Washington | King | 10 | High | Fair | 1967 | Irrigation |
| Geneva Lake Dam | Washington | Whatcom | 10 | High | Satisfactory | 1988 | Recreation |
| Mountain Meadows Lake Dam | Washington | Pend Oreille | 10 | High | Poor | 1959 | Recreation |
| Grandview Wastewater Aqua Lagoon Dam | Washington | Yakima | 10 | Significant | Fair | 1999 | Other |
| Springwood Stormwater Detention Dam | Washington | King | 10 | High | Fair | 1992 | Flood Risk Reduction |
| South Ridge Stormwater Detention Dam | Washington | King | 10 | High | Fair | 2002 | Flood Risk Reduction |
| Yellow Lake Outlet Dike | Washington | King | 10 | High | Satisfactory | 1986 | Flood Risk Reduction |
| North Fork Clover Creek E1 Det Basin | Washington | Pierce | 10 | High | Fair | 2000 | Flood Risk Reduction |
| North Fork Clover Creek W1 Det Facil | Washington | Pierce | 10 | High | Fair | 2001 | Flood Risk Reduction |
| Bayley Lake Dam | Washington | Stevens | 9 | Low | — | 1924 | Fish and Wildlife Pond |
| Isaak Dam No 4 | Washington | Douglas | 9 | High | Fair | 1987 | Irrigation |
| Serene Lake | Washington | Pierce | 9 | Low | — | 1971 | Recreation |
| Bonaparte Lake Dam | Washington | Okanogan | 9 | Low | — | 1957 | Irrigation |
| Evans Desert Aire Pond | Washington | Grant | 9 | High | Satisfactory | 1990 | Irrigation |
| Seeley Ski Lake | Washington | Thurston | 9 | Low | — | 1992 | Recreation |
| Maytown Ski Pond Dam | Washington | Thurston | 9 | Low | — | 1987 | Recreation |
| Three Lakes Reservoir Dam | Washington | Chelan | 9 | Low | — | 1908 | Irrigation |
| Melbourne Lake Dam | Washington | Mason | 9 | Low | — | 1957 | Fish and Wildlife Pond |
| Stemilt Saddle Dam | Washington | Chelan | 9 | High | Fair | 1962 | Irrigation |
| Colchuck Lake Saddle Dam | Washington | Chelan | 9 | Low | — | 1930 | Irrigation |
| Ritzville Wastewater Lagoons | Washington | Adams | 9 | Significant | Fair | 2000 | Other |
| Nielsen Dam B | Washington | Snohomish | 9 | High | Poor | 1973 | Recreation |
| George City Wastewater Treatment Lago | Washington | Grant | 9 | Low | — | 1996 | 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.