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 |
|---|---|---|---|---|---|---|---|
| Locke Dam | Washington | Pend Oreille | 25 | High | Satisfactory | 1973 | Flood Risk Reduction |
| Little Twin Lakes Dam | Washington | Mason | 25 | Low | - | 1966 | Recreation |
| Twin Lakes | Washington | Ferry | 25 | High | Poor | 1931 | Irrigation |
| Blazing Tree Ranch Pond 5 North Dam | Washington | San Juan | 25 | Low | - | 1965 | Irrigation |
| Blazing Tree Ranch Pond 5 South Dam | Washington | San Juan | 25 | Low | - | 1965 | Irrigation |
| Tapps Lake Dike No 11 | Washington | Pierce | 25 | High | Satisfactory | 1911 | Recreation |
| Minckler Dam B | Washington | Island | 25 | High | Fair | 1975 | Recreation |
| Spectacle Lake Dike | Washington | Okanogan | 25 | Low | Not Available | 1969 | Irrigation |
| Fairview Reservoir No 2 | Washington | Grays Harbor | 25 | High | Fair | 1921 | Water Supply |
| Van Stone Pit Lake Dam | Washington | Stevens | 25 | High | Poor | 1999 | Tailings |
| Elwick Dam | Washington | Clallam | 25 | High | Poor | 1962 | Irrigation |
| Ice Harbor Ranch Block 211 Reservoir | Washington | Franklin | 25 | Low | - | 2013 | Water Supply |
| Blazing Tree Ranch Pond 6 Dam | Washington | San Juan | 25 | Low | - | 1977 | Irrigation |
| Rockford Wastewater Pond No. 3 | Washington | Spokane | 24 | Significant | Satisfactory | 1999 | Other |
| George Deruyter & Son Dairy Lagoon 2 | Washington | Yakima | 24 | High | - | 2022 | Other |
| Boyd Lower Reservoir Dam | Washington | San Juan | 24 | High | Fair | 1960 | Irrigation |
| Swano Lake Dam | Washington | Grays Harbor | 24 | High | Poor | 1949 | Fish and Wildlife Pond |
| Olympic View Landfill Leachate Lagoon 1 | Washington | Kitsap | 24 | High | Satisfactory | 1997 | Other |
| Sinlahekin Dam No 3 | Washington | Okanogan | 24 | High | Satisfactory | 1950 | Recreation |
| Welcome Lake Dam | Washington | King | 24 | High | Fair | 1959 | Recreation |
| Everett Reservoir No 4 | Washington | Snohomish | 24 | High | Satisfactory | 1952 | Water Supply |
| Peabody Heights Reservoir | Washington | Clallam | 24 | High | Satisfactory | 1925 | Water Supply |
| Issaquah Highlands Npe Pond | Washington | King | 24 | High | Fair | 2003 | Flood Risk Reduction |
| Ponderay Newsprint Mill Settling Lagoon | Washington | Pend Oreille | 24 | Low | - | 1989 | Other |
| Hecla Groundwater Management Impoundment | Washington | Ferry | 24 | Significant | Fair | 2015 | Other |
| Deer Park Ww Storage Lagoon No 3 | Washington | Spokane | 24 | High | Satisfactory | 1997 | Other |
| Chiawana Frenchman Hills Dam | Washington | Grant | 24 | High | Fair | 1995 | Irrigation |
| Kennewick No 2 Aerated Wastewater Lagoon | Washington | Benton | 24 | High | Fair | 1975 | Other |
| Duncan Creek Dam | Washington | Skamania | 24 | Low | - | 1963 | Fish and Wildlife Pond |
| Kennewick Sewage Lagoon System | Washington | Benton | 24 | High | Satisfactory | 1997 | Other |
| Upper Falls Control Works | Washington | Spokane | 24 | Low | Satisfactory | 1922 | Hydroelectric |
| Talus P5 Stormwater Detention Dam | Washington | King | 24 | High | Satisfactory | 2002 | Flood Risk Reduction |
| Simplot Lrar Lagoon | Washington | Grant | 24 | Low | - | 2006 | Other |
| Kennewick No 1 Aerated Wastewater Lagoon | Washington | Benton | 24 | High | Satisfactory | 1975 | Other |
| 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 |
| Kinross Old Reclaim Pond | Washington | Ferry | 24 | Significant | Satisfactory | 2008 | Tailings |
| Cow Palace Lagoon 1 | Washington | Yakima | 23 | Significant | Fair | 2000 | Other |
| Sylvia Lake Dam Grays Harbor Cnty | Washington | Grays Harbor | 23 | Significant | Poor | 1918 | Recreation |
| Holiday Lake Dam | Washington | Whatcom | 23 | High | Fair | 1967 | Recreation |
| Con Agra Foods Main Storage Basin Dam | Washington | Franklin | 23 | Low | - | 1970 | Other |
| Finley Ranch Reservoir | Washington | Benton | 23 | High | Satisfactory | 2013 | Irrigation |
| Connell Wastewater Lagoon 1a | Washington | Franklin | 23 | Significant | Fair | 2009 | Other |
| Deer Park Ww Storage Lagoons 1 & 2 | Washington | Spokane | 23 | High | Satisfactory | 1985 | Other |
| Roche Pomona Dam | Washington | Yakima | 23 | High | Satisfactory | 1995 | Irrigation |
| Durhack Dam No 1 | Washington | San Juan | 23 | Low | - | 1968 | Recreation |
| Mossyrock - Saddle Dike | Washington | Lewis | 23 | Low | Satisfactory | 1968 | Hydroelectric |
| Snoqualmie Pass Pud Sewage Lagoon No 1 | Washington | Kittitas | 23 | Low | - | 1982 | Other |
| Boman Reservoir Dam | Washington | Ferry | 23 | High | Fair | 1977 | Irrigation |
| Paterson Ranch Reservoir | Washington | Benton | 23 | High | Fair | 2010 | 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.