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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
Ritzville Wastewater Lagoons Washington Adams 9 Significant Fair 2000 Other
George City Wastewater Treatment Lago Washington Grant 9 Low — 1996 Other
Prosser Diversion Dam Washington Benton 9 Low Not Available 1904 Irrigation
Carl Malone Wildlife Pond Washington Douglas 9 Low — 1992 Flood Risk Reduction
Loers Dam Washington Island 9 Low — 1958 Irrigation
Longview Sewage Lagoon No 1 Washington Cowlitz 9 Low — 1986 Other
Tapps Lake Dike No 2a Washington Pierce 9 High Satisfactory 1911 Recreation
Bonney Lake Wsu Infiltration Pond Washington Pierce 9 High Satisfactory 2018 Flood Risk Reduction
Svid Mabton Canal 12.48 Reservoir Washington Yakima 9 High Satisfactory 2010 Irrigation
Ingredion Process Water Lagoon Washington Grant 9 Significant Satisfactory 2000 Other
204th Street Stormwater Detention Basin Washington King 9 Significant Fair 2001 Flood Risk Reduction
Bosma Old Pond 1 Washington Yakima 9 Significant Fair 2000 Other
Nada Dam Washington Chelan 9 Low Satisfactory 1939 Water Supply
Tyson Fresh Meats Brine Pond 7 Washington Walla Walla 9 Significant Satisfactory 1995 Other
Seatac Airport Se Pond Washington King 9 Significant Satisfactory 2007 Flood Risk Reduction
Grandview Wastewater E&F Lagoons Dam Washington Yakima 9 Significant Fair 1997 Other
Klahanie Stormwater Detention Dam No 1 Washington King 9 Significant Fair 1984 Flood Risk Reduction
Fire Mountain Boy Scout Camp Dam B Washington Skagit 9 High Satisfactory 1971 Recreation
Panther Lk First Avenue Bas Detent Pond Washington King 9 High Satisfactory 2000 Flood Risk Reduction
Mallard Marsh Dam Washington Pend Oreille 8 Low — 1960 Recreation
Stanwood Wastewater Pond Washington Snohomish 8 Low — 1980 Other
Koreis Dam Washington Franklin 8 Low — 1982 Irrigation
Reardan Sewage Lagoon Washington Lincoln 8 High Fair 2006 Other
Burres Dam Washington Clark 8 High — 1951 Irrigation
Reflection Lake North Dam Washington Spokane 8 High Fair 1955 Recreation
Bellingham Airport Sw Detention Pond 3 Washington Whatcom 8 High Satisfactory 2011 Flood Risk Reduction
Samish Wd Sewage Lagoons Washington Skagit 8 Significant Fair 1974 Other
Teal Duck Slough Dam Washington Pacific 8 Low — 1960 Recreation
Interfor Pacific Stormwater Pond Washington Clallam 8 High Satisfactory 2001 Flood Risk Reduction
Quadrant Lake No 1 Washington King 8 Low — 1994 Flood Risk Reduction
Samish Wd Sewage Lagoon No. 1 Washington Skagit 8 Significant Fair 1974 Other
Tyson Fresh Meats Lagoons 1 2 3 Washington Walla Walla 8 Significant Satisfactory 1980 Other
Wade Dann Waterski Pond Dam Washington Skagit 8 Low — 1990 Recreation
Waterville Sewage Treatment Pond Washington Douglas 8 Low — 1954 Other
Warman Waterski Lake Dam Washington Clark 8 Low — 1988 Recreation
Eagle Lake Dam Washington Franklin 8 Low — 1955 Irrigation
Jays Pond Dam Washington San Juan 8 High Fair 1973 Recreation
Cziglenski Beaver Pond Dam Washington Stevens 8 Low — 1995 Recreation
Lower Turnbull Dam Washington Spokane 8 Low Fair 1960 Fish and Wildlife Pond
Albion Sewage Treatment Lagoons Washington Whitman 8 Low — 1972 Other
Clear Lake Saddle Dam Washington Chelan 8 High Satisfactory 1888 Irrigation
Connell Wastewater Lagoon 5 Washington Franklin 8 Significant Fair 2009 Other
Loon Lake Control Structure Washington Stevens 8 Low Fair 1951 Recreation
Des Moines Ck Reg Det Pond West Berm Washington King 8 High Satisfactory 2009 Flood Risk Reduction
Edaleen Dairy Waste Storage Pond No. 2 Washington Whatcom 8 High Fair 1989 Other
Oak Harbor Wastewater Lagoon Nw Cell Washington Island 8 Low — 1990 Other
Oak Harbor Wastewater Lagoon Sw Cell Washington Island 8 Low — 1990 Other
Redmond Ridge Drive Ec 4n Roadway Dam Washington King 8 High Satisfactory 2003 Flood Risk Reduction
Black Lake Dam Washington Adams 7 Low — 1938 Recreation
Sims Dam Washington Douglas 7 Low — 1960 Flood Risk Reduction

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.