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.

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Name State County Height (ft) Hazard Condition Year Purpose
Upper Falls Intake Dam Washington Spokane 20 Low Satisfactory 1922 Hydroelectric
St Clair Stormwater Detention Dam Washington Whatcom 20 High Satisfactory 1986 Flood Risk Reduction
Buck Mountain Reservoir Dam No 3 Washington San Juan 20 High Fair 1985 Water Supply
Centralia Coal Mine Dam No 5c Washington Lewis 20 Low — 1970 Tailings
Lummi Island Estates Dam Washington Whatcom 20 High Fair 1963 Recreation
Kyte Dam Washington Thurston 20 High Poor 1966 Irrigation
Roza Wasteway 6 Reregulation Reservoir Washington Benton 20 Low — 1988 Irrigation
Everett Washwater Storage Pond Dam Washington Snohomish 20 Low — 1985 Other
Selah Naches Ranch Reservoir Washington Yakima 20 High Satisfactory 2004 Irrigation
Tapps Lake Dike No 8 Washington Pierce 20 High Satisfactory 1911 Recreation
Mill Creek Dam Cosmopolis Washington Grays Harbor 20 High Satisfactory 2019 Fish and Wildlife Pond
Moses Lake South Dam Washington Grant 20 Low Not Available 1961 Irrigation
Honeymoon Lake Dam Washington Island 20 High Satisfactory 1969 Recreation
Connell Wastewater Lagoons Washington Franklin 20 Significant Fair 2000 Other
Woods Reservoir Dam Washington San Juan 20 Low — 1972 Irrigation
North Aeration Stabilization Basin Lady Island Washington Clark 20 Significant Satisfactory 1977 Other
Walla Walla Effluent Storage Lagoon Washington Walla Walla 19 Low Satisfactory 2008 Other
Loreene Lake Dam Washington King 19 Low — 1963 Recreation
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
Agreserves Plymouth Wastewater Storage Pond Washington Benton 19 Significant — 2023 Other
Moses Lake North Dam Washington Grant 19 Low — 1930 Irrigation
Carlisle Lake Dam Washington Lewis 19 High Poor 1920 Fish and Wildlife Pond
Firnstahl Dam Washington Snohomish 19 Low Poor 1965 Irrigation
H & H Reservoir Dam No 1 Washington Chelan 19 High Satisfactory 1926 Irrigation
Whatcom Lake Dam Washington Whatcom 19 High Satisfactory 1937 Recreation
Davenport Sewage Lagoon No 3 Washington Lincoln 19 High Fair 1987 Other
Thorald Dam Washington San Juan 19 Low — 1988 Irrigation
Headquarters Landfill Leachate Pond Washington Cowlitz 19 Significant Satisfactory 1993 Other
South 336th Street Stormwater Dam No 2 Washington King 19 High Fair 1996 Flood Risk Reduction
Shiflett Reservoir No. 1 Washington Chelan 19 High Fair 1945 Irrigation
Goldendale Wastewater Pond 1b Washington Klickitat 19 Low — 1983 Other
Pacific Nw Sugar CO Condensation Pond Washington Grant 19 Low — 1998 Other
Skagit Lake Dam Washington Skagit 19 Low — 1971 Recreation
Koehn Ranch Reservoir Washington Grant 19 High Satisfactory 2009 Irrigation
Horn School Rest Area Sewage Lagoon Washington Whitman 19 High Satisfactory 1996 Other
Stemilt Equalizing Reservoir Washington Chelan 19 High Satisfactory 1985 Irrigation
Goldendale Wastewater Pond 2 Washington Klickitat 19 Low — 1983 Other
Colchuck Lake Dam Washington Chelan 18 High Poor 1930 Irrigation
Des Moines Ck Reg Det Facility East Berm Washington King 18 High Satisfactory 2009 Flood Risk Reduction
Fire Mountain Boy Scout Camp Dam A Washington Skagit 18 High Fair 1971 Recreation
Johnson Creek Reservoir Dam Washington Klickitat 18 High Fair 1982 Irrigation
Tapps Lake Dike No10 Washington Pierce 18 High Satisfactory 1911 Recreation
Christine Lake Dam Washington Mason 18 Low — 1967 Recreation
Ruth Lake Dam Washington Kitsap 18 Low Poor 1977 Other
Dragoon Lake Dam Washington Spokane 18 Low — 1913 Recreation
Erickson Dam Washington Clark 18 Significant Poor 1968 Irrigation
Long Bell Mill Pond Dam Washington Lewis 18 Low — 1943 Other
Dhondt Dam Washington Stevens 18 Low — 1983 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.