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 |
|---|---|---|---|---|---|---|---|
| Minckler Dam B | Washington | Island | 25 | High | Fair | 1975 | Recreation |
| Zylstra Dam No 2 | Washington | San Juan | 25 | Low | - | 1963 | Irrigation |
| Locke Dam | Washington | Pend Oreille | 25 | High | Satisfactory | 1973 | Flood Risk Reduction |
| Little Twin Lakes Dam | Washington | Mason | 25 | Low | - | 1966 | Recreation |
| Long Lake East Dam | Washington | Spokane | 25 | Low | Fair | 1960 | Fish and Wildlife Pond |
| Twin Lakes | Washington | Ferry | 25 | High | Poor | 1931 | Irrigation |
| Columbia Marsh Unit #1 Dam | Washington | Grant | 25 | Low | Poor | 1958 | Fish and Wildlife Pond |
| Tapps Lake Dike No 11 | Washington | Pierce | 25 | High | Satisfactory | 1911 | Recreation |
| Elwick Dam | Washington | Clallam | 25 | High | Poor | 1962 | Irrigation |
| Ice Harbor Ranch Block 211 Reservoir | Washington | Franklin | 25 | Low | - | 2013 | Water Supply |
| Fairview Reservoir No 2 | Washington | Grays Harbor | 25 | High | Fair | 1921 | Water Supply |
| Blazing Tree Ranch Pond 5 North Dam | Washington | San Juan | 25 | Low | - | 1965 | Irrigation |
| Spectacle Lake Dike | Washington | Okanogan | 25 | Low | Not Available | 1969 | Irrigation |
| Olympic View Landfill Leachate Lagoon 1 | Washington | Kitsap | 24 | High | Satisfactory | 1997 | Other |
| Upper Falls Control Works | Washington | Spokane | 24 | Low | Satisfactory | 1922 | Hydroelectric |
| Duncan Creek Dam | Washington | Skamania | 24 | Low | - | 1963 | Fish and Wildlife Pond |
| Talus P5 Stormwater Detention Dam | Washington | King | 24 | High | Satisfactory | 2002 | Flood Risk Reduction |
| Sinlahekin Dam No 3 | Washington | Okanogan | 24 | High | Satisfactory | 1950 | Recreation |
| Kennewick No 2 Aerated Wastewater Lagoon | Washington | Benton | 24 | High | Fair | 1975 | Other |
| Swano Lake Dam | Washington | Grays Harbor | 24 | High | Poor | 1949 | Fish and Wildlife Pond |
| Welcome Lake Dam | Washington | King | 24 | High | Fair | 1959 | Recreation |
| Chiawana Frenchman Hills Dam | Washington | Grant | 24 | High | Fair | 1995 | Irrigation |
| Deer Park Ww Storage Lagoon No 3 | Washington | Spokane | 24 | High | Satisfactory | 1997 | Other |
| Simplot Lrar Lagoon | Washington | Grant | 24 | Low | - | 2006 | Other |
| Hecla Groundwater Management Impoundment | Washington | Ferry | 24 | Significant | Fair | 2015 | Other |
| Boyd Lower Reservoir Dam | Washington | San Juan | 24 | High | Fair | 1960 | Irrigation |
| George Deruyter & Son Dairy Lagoon 2 | Washington | Yakima | 24 | High | - | 2022 | Other |
| Peabody Heights Reservoir | Washington | Clallam | 24 | High | Satisfactory | 1925 | Water Supply |
| Kennewick Sewage Lagoon System | Washington | Benton | 24 | High | Satisfactory | 1997 | Other |
| Ponderay Newsprint Mill Settling Lagoon | Washington | Pend Oreille | 24 | Low | - | 1989 | Other |
| Issaquah Highlands Npe Pond | Washington | King | 24 | High | Fair | 2003 | Flood Risk Reduction |
| Rockford Wastewater Pond No. 3 | Washington | Spokane | 24 | Significant | Satisfactory | 1999 | Other |
| Everett Reservoir No 4 | Washington | Snohomish | 24 | High | Satisfactory | 1952 | Water Supply |
| Kennewick No 1 Aerated Wastewater Lagoon | Washington | Benton | 24 | High | Satisfactory | 1975 | Other |
| Kinross Old Reclaim Pond | Washington | Ferry | 24 | Significant | Satisfactory | 2008 | Tailings |
| Kayak Lake Dam | Washington | Snohomish | 24 | High | Poor | 1965 | Recreation |
| Lunds Gulch Creek Regional Stormwater Detention Pond | Washington | Snohomish | 24 | High | Fair | 1992 | Flood Risk Reduction |
| Paterson Ranch Reservoir | Washington | Benton | 23 | High | Fair | 2010 | Irrigation |
| Finley Ranch Reservoir | Washington | Benton | 23 | High | Satisfactory | 2013 | Irrigation |
| Rec Silicon Wastewater Pond | Washington | Grant | 23 | Low | Fair | 2009 | Other |
| Con Agra Foods Main Storage Basin Dam | Washington | Franklin | 23 | Low | - | 1970 | Other |
| Holiday Lake Dam | Washington | Whatcom | 23 | High | Fair | 1967 | Recreation |
| Mccormick North Phase 3 Storm Pond | Washington | Kitsap | 23 | High | - | 2023 | Flood Risk Reduction |
| Cow Palace Lagoon 1 | Washington | Yakima | 23 | Significant | Fair | 2000 | Other |
| Durhack Dam No 1 | Washington | San Juan | 23 | Low | - | 1968 | Recreation |
| Roche Pomona Dam | Washington | Yakima | 23 | High | Satisfactory | 1995 | Irrigation |
| Boman Reservoir Dam | Washington | Ferry | 23 | High | Fair | 1977 | Irrigation |
| Connell Wastewater Lagoon 1a | Washington | Franklin | 23 | Significant | Fair | 2009 | Other |
| Mossyrock - Saddle Dike | Washington | Lewis | 23 | Low | Satisfactory | 1968 | Hydroelectric |
| Snoqualmie Pass Pud Sewage Lagoon No 1 | Washington | Kittitas | 23 | Low | - | 1982 | 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.