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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.

Name State County Height (ft) Hazard Condition Year Purpose
Educket Creek Dam Washington Clallam 35 Significant Not Available 1983
Evans Tieton Pond Dam Washington Yakima 35 High Satisfactory 2004 Irrigation
Ione Mill Pond Washington Pend Oreille 35 Low — 1914 Recreation
Farmland Ranch 19 Dam Washington Yakima 35 High Satisfactory 1992 Irrigation
Chaplain Lake North Dam Washington Snohomish 35 High Satisfactory 1940 Water Supply
Fairview Reservoir No 1 Washington Grays Harbor 35 High Poor 1915 Water Supply
Regulating Basin South Dam Washington King 35 High Satisfactory 1962 Water Supply
Seattle City Volunteer Park Reservoir Washington King 35 High Satisfactory 1901 Water Supply
Yelm Canal Dike Washington Thurston 35 High Unsatisfactory 1930 Hydroelectric
Klonaqua Lake Dam Washington Chelan 35 High Poor 1933 Irrigation
Sunnyside Mp 37.1 Reservoir Washington Yakima 34 High Fair 2011 Irrigation
Radar Lake Dam Washington King 34 High Satisfactory 1973 Recreation
West Bank Project Reservoir Washington Franklin 34 High Satisfactory 2003 Irrigation
Sullivan Lake Washington Pend Oreille 34 High Fair 1923 Hydroelectric
Limerick Lake Dam Washington Mason 34 High Satisfactory 1966 Recreation
Evans Konnowac Dam Washington Yakima 33 High Poor 1990 Irrigation
Carnation Potato Waste Lagoon System Washington Adams 33 Low — 1990 Other
Aberdeen Lake Dam Washington Grays Harbor 33 High Satisfactory 1928 Recreation
Buck Mountain Reservoir Dam No 2 Washington San Juan 32 High Fair 1985 Water Supply
Orchards Block 96 Reservoir Dam Washington Walla Walla 32 High Satisfactory 2001 Irrigation
Blue Lake Dam Okanogan Co Washington Okanogan 32 Low — 1923 Recreation
Regulating Basin West Dam Washington King 32 High Satisfactory 1962 Water Supply
Ayer Reservoir Dam Washington San Juan 32 Low — 1964 Recreation
Nestle Potato Effluent Lagoon Washington Grant 32 Low — 1994 Other
Failor Lake Dam Washington Grays Harbor 32 Low — 1956 Recreation
Box Canyon Forebay Dam Washington Pend Oreille 32 Low Satisfactory 1955 Hydroelectric
Dad'S Lake Dam Washington Stevens 32 High Satisfactory 1976 Recreation
Mccormick North Phase I East Pond Washington Kitsap 32 High Fair 2009 Flood Risk Reduction
Tri Mountain Estates Dam Washington Clark 32 High Satisfactory 1953 Irrigation
Seattle Port Lagoon No 3 Washington King 32 High Satisfactory 2001 Flood Risk Reduction
Ochoa Ob-3 Process Water Storage Lagoon Washington Adams 32 High Fair 2009 Other
Patterson Lake Dam Washington Okanogan 32 High Fair 1924 Irrigation
Mccain Foods Covered Anaerobic Lagoon Washington Adams 31 High Satisfactory 2021 Other
Marcel Lake Dam Washington King 31 High Fair 1964 Recreation
College Hill Reservoir Washington Grays Harbor 31 High Poor 1899 Water Supply
Everett Clearwell Pond Dam Washington Snohomish 31 Low — 1985 Other
I405 Coal Creek Stormwater Detention Da Washington King 31 Low — 1987 Flood Risk Reduction
Beryl Baker Dam Washington Stevens 31 High Satisfactory 1977 Recreation
Cedar Way Stormwater Detention Dam Washington Snohomish 31 High Fair 1985 Flood Risk Reduction
Berge Reservoir Dam Washington Skamania 31 Low — 1954 Irrigation
Coffin Sheep Dam No 3 Washington Benton 31 Low — 1938 Irrigation
Port of Moses Lake Lagoon Washington Grant 30 Low — 1999 Other
Sheep Springs Dam Washington Adams 30 Low — 1906 Irrigation
Weyerhaeuser Enumclaw Flood Control Dam Washington King 30 High Fair 1993 Flood Risk Reduction
Beacon Hill Reservoir Washington Grays Harbor 30 High Poor 1935 Water Supply
Fresh Water Pond Washington Jefferson 30 Significant Not Available — Water Supply
Echo Falls Golf Course Reservoir No 2 Washington Snohomish 30 Low — 2000 Irrigation
Lawrence Lake Dam Washington Thurston 30 Low — 1918 Recreation
Garrison Creek 98th Avenue Detention D Washington King 30 High Fair 1996 Flood Risk Reduction
Williams Lake Sewer Dist 2 Lagoons Washington Spokane 30 Low — 2007 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.