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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
Fish Lake Dam Washington Okanogan 7 Low — 1920 Recreation
Little Sweden Dam Washington Stevens 7 Low — 1986 Recreation
Green Mountain Pond Washington Clark 7 Low — 1987 Fire Protection, Stock, Or ...
Kohne Dam No 2 Washington Douglas 7 Low — 1950 Irrigation
Camping Dairy Lagoon Dam Washington Whatcom 7 High Fair 1980 Other
Woodcrest Lakes Dam Washington Skagit 7 Low — 1980 Recreation
Snakebite Reservoir Dam Washington Franklin 7 Low — 1976 Irrigation
Colville Wastewater Lagoons Washington Stevens 7 Low — 1967 Other
Crystal Lake Dam Washington Snohomish 7 High Fair 1931 Recreation
Kristofferson Lake Dam Washington Island 7 Low — 1961 Irrigation
Cow Lake Dam Washington Adams 7 Low — 1935 Irrigation
Square Lake Dam Washington Chelan 7 High Poor 1938 Irrigation
Boeing Auburn Drainage Ditch Detention D Washington King 7 Low — 1994 Flood Risk Reduction
Summit Lake Dam Washington Thurston 7 Low — 1955 Recreation
Sportsman Lake Dam Washington San Juan 7 Low — 1960 Irrigation
Fargher Lake Dam Washington Clark 7 Low — 1986 Recreation
Davenport Sewage Lagoon No 1 Washington Lincoln 7 High Fair 1993 Other
Davis Lake Dam Okanogan Co Washington Okanogan 7 Low — 1974 Recreation
West Lynden Regional Detention Facility Washington Whatcom 7 Low — 2003 Flood Risk Reduction
N Marysville Regional Stormwater Pond No. 2 Washington Snohomish 7 High Satisfactory 2015 Flood Risk Reduction
Chambers Lake Washington Pierce 7 Low Not Available 1967 Other
West Richland Sewage Lagoon North Washington Benton 7 Significant Fair 1961 Other
Grandview Wastewater A-Cell Lagoon Dam Washington Yakima 7 Significant Fair 1991 Other
Coulee City Wastewater Lagoon Washington Grant 7 High Satisfactory 1997 Other
Engelsma Dairy Lagoon Dam Washington Whatcom 7 Significant Fair 1994 Irrigation
Liberty Acres Lagoon 3 Washington Yakima 7 Significant Fair 1990 Other
D&J Dairy Consolidated Lagoon No. 1 Washington Yakima 6 Significant — 2021 Other
Milles Lake Dam Washington Okanogan 6 High Satisfactory 1950 Fish and Wildlife Pond
Friesland Dairy Lagoons Washington Yakima 6 High Fair 2013 Other
Liberty Acres Lagoon 7 Washington Yakima 6 Significant Fair 2000 Other
Lohrer Dam Washington Clallam 5 High Satisfactory 1974 Recreation
Tapps Lake Dike No 13 Washington Pierce 5 High Satisfactory 1911 Recreation
Davenport Sewage Lagoon No 2 Washington Lincoln 4 High Fair 1987 Other
Agrinw Spaw Pond Washington Benton 0 Significant — — Irrigation
Agrinw Feedlot Fresh Water Pond Washington Benton 0 Significant — — 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.