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Browse Dams

1,984 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 1,984 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
Nakomis Lake Colorado Larimer 18 Low Satisfactory 1920 Fish and Wildlife Pond
Burg Colorado Mesa 18 Low Not Rated — Irrigation
College #3 Colorado Larimer 18 High Satisfactory 1919 Irrigation
Johnson #2 Colorado La Plata 18 Low Not Rated — Irrigation
Lamborn #1 Colorado Morgan 18 Low Fair 1951 Irrigation
Sellers-Crowell Colorado Routt 18 Low Fair 1914 Irrigation
Seeley Lake Colorado Weld 18 Low Satisfactory 1902 Irrigation
Crystal Lake Colorado Otero 18 Significant Unsatisfactory — Recreation
Lower Chinns Colorado Clear Creek 18 High Not Rated 1934 Irrigation
Marston Lake - Northwest Dike Colorado Denver 18 High Satisfactory 1899 Water Supply
Lazy O Reservoir No 2 Colorado Pitkin 18 Significant Fair 1990 Fish and Wildlife Pond
Goodhue No. 1 Colorado Boulder 18 Low Fair 1938 Irrigation
Fairmont Park Colorado Delta 18 Low Not Rated 1908 Irrigation
Castle #4 Colorado Hinsdale 18 Low Not Rated 1928 Fish and Wildlife Pond
Granby #7 Colorado Delta 18 Low Not Rated 1964 Irrigation
Silver Spruce #2 Colorado Boulder 18 Low Satisfactory 1958 Recreation
Mill Creek Dam No 1 Colorado Hinsdale 18 Significant Not Rated 1954 Recreation
Gagliardi, Mike Colorado Las Animas 18 Low Not Rated 1919 Irrigation
Oklahoma Lake Colorado Weld 18 Low Fair 1891 Irrigation
Agate No 1 Colorado Elbert 18 Low Satisfactory 1890 Irrigation
Big Creek #4 Colorado Mesa 18 Low Unsatisfactory 1893 Irrigation
Diemer Reservoir Colorado Pitkin 18 Low Not Rated 1929 Fish and Wildlife Pond
Harris Brothers and Boone #2 Colorado Archuleta 18 Low Satisfactory 1947 Irrigation
Lakeview Village Ski Dam Colorado Weld 18 Low Satisfactory 1991 Recreation
Cozzens Colorado Weld 17 Low Satisfactory 1902 Irrigation
Wickstrom Colorado Morgan 17 Low Satisfactory 1957 Flood Risk Reduction
Dry Creek Colorado Larimer 17 Low Satisfactory 1966 Irrigation
Regan Colorado Hinsdale 17 Low Fair 1906 Fish and Wildlife Pond
Richards Colorado Adams 17 Low Not Rated 1902 Irrigation
Soward #4 Colorado Mineral 17 Low Fair 1909 Recreation
Maguire Colorado Elbert 17 Low Fair 1925 Irrigation
George Rist Colorado Larimer 17 Significant Satisfactory 1973 Irrigation
Mcintosh Colorado Boulder 17 Significant Satisfactory 1902 Irrigation
Road Canyon #2 Colorado Hinsdale 17 Low Satisfactory 1922 Recreation
Metzger Colorado Adams 17 Low Satisfactory 1961 Irrigation
Johnston Colorado Jefferson 17 Significant Satisfactory 1974 Irrigation
West Meadows #1 Colorado Jefferson 17 Low Fair 1983 Recreation
Ostrich Dam Colorado Conejos 17 Low Not Rated 1964 Flood Risk Reduction
Stell Lake Colorado Delta 17 Low Fair 1956 Irrigation
Giffin #1 (Lower) Colorado Weld 17 Low Fair 1948 Irrigation
Upper Lone Tree Colorado Fremont 17 Low Not Rated 1895 Irrigation
La Gunita Colorado Mineral 17 Low Fair —
Slesinger Colorado Archuleta 17 Low Fair 1950 Irrigation
Kirkendall Colorado Mesa 17 Low Not Rated 1952 Irrigation
Pawnee Evaporation Ponds A, B, C Colorado Morgan 17 Low Not Rated 1981 Other
Twin Basin Colorado Mesa 17 Low Fair 1912 Irrigation
Holy Terror Colorado Delta 17 Low Satisfactory 1893 Irrigation
Klingenberg Flood Control #1 Colorado Weld 17 Low Satisfactory 1955 Flood Risk Reduction
Florence North Res. No. 1 Colorado Fremont 17 Significant Satisfactory — Water Supply
Brainard Lake Colorado Boulder 17 Significant Not Rated 1943 Recreation

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.