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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.

Clear
Name State County Height (ft) Hazard Condition Year Purpose
E. G. Merritt Colorado Montezuma 21 Low Fair 1978 Irrigation
Jewell Wetland Detention Colorado Arapahoe 21 Low Not Rated 2000 Flood Risk Reduction
Dawson Colorado Mesa 20 Low Not Rated 1911 Irrigation
Carlin Colorado Weld 20 Low Not Rated 1905 Irrigation
Salas Ditch Colorado Huerfano 20 Low Not Rated 1920 Irrigation
L.A. Bar Colorado Montezuma 20 Low Fair 1945 Irrigation
Cushman Colorado San Miguel 20 Low Not Rated 1978 Fish and Wildlife Pond
Longmont Wtp Forebay Embankment Colorado Boulder 20 High Satisfactory 2005 Water Supply
Sunny Brook Colorado Prowers 20 Low Not Rated 1915 Irrigation
Griggs Colorado Grand 20 Low Satisfactory 1948 Irrigation
Croke No. 7 Colorado Adams 20 Low Fair 1888 Water Supply
Pala Dura Colorado Huerfano 20 Low Fair 1979 Fire Protection, Stock, Or ...
Ireland #5 Colorado Weld 20 Low Satisfactory 1976 Irrigation
Rainbow Falls #5 Colorado Douglas 20 Low Not Rated 1957 Recreation
Mosca Livestock #2 Colorado Montrose 20 Low Not Rated 1960 Irrigation
Mundt Colorado Weld 20 High Satisfactory 2020 Irrigation
Bennett Colorado Jackson 20 Low Satisfactory 1976 Irrigation
Curtis Lake Colorado Larimer 20 Significant Satisfactory 1906 Water Supply
Comanche Colorado Pueblo 20 High Satisfactory 1972 Water Supply
Shawver Colorado Jackson 20 Low Fair 1949 Irrigation
Bassett #2 Colorado Moffat 20 Low Fair 1939 Recreation
Thurston Lake Colorado Prowers 20 Significant Fair 1928 Recreation
Timpas 1_(Browning & Reese #1) Colorado Otero 20 Low Not Rated 1916 Fire Protection, Stock, Or ...
Sueno Colorado Las Animas 20 Low Not Rated 1989 Irrigation
Groth Pumping System Colorado Larimer 20 Low Not Rated 1951 Irrigation
Koch Colorado Phillips 20 Low Not Rated 1947 Fire Protection, Stock, Or ...
Mcginnis Meadows Reservoir Colorado Garfield 20 Significant Not Rated 1944 Recreation
Kiowa Crk Wtrshd 1-E-60 Colorado Elbert 20 Low Fair 1957 Flood Risk Reduction
Jolly Ranch Colorado Arapahoe 20 Low Fair 1987 Fire Protection, Stock, Or ...
Baseline - Northwest Colorado Boulder 20 High Satisfactory 1905 Irrigation
Monument #2 Colorado Mesa 20 Low Fair 1954 Irrigation
Holden Colorado Routt 20 Low Not Rated 1952 Irrigation
Cottonwood #2 Colorado Mesa 20 Significant Fair 1895 Irrigation
Big Monitor #2 Colorado Montrose 20 Low Fair 1946 Irrigation
A-20 Colorado Adams 20 Low Fair 1927 Irrigation
Ella Colorado Delta 20 Low Fair 1911 Irrigation
Equalizer Colorado Larimer 20 High Fair 1902 Irrigation
Basin #1 Colorado Delta 20 Low Fair 1949 Water Supply
Basin #2 Colorado Delta 20 Low Satisfactory 1949 Water Supply
Margaret-Carpenter Colorado Adams 20 Low Not Rated 2008 Irrigation
Bull Basin #1 Colorado Mesa 20 Low Not Rated 1920 Irrigation
Lower Derby Colorado Adams 20 Significant Not Available 1942 Irrigation
Louisville No. 1 Colorado Boulder 20 Significant Satisfactory 1888 Water Supply
Flood Control Basin No. 1 Colorado Larimer 20 High Satisfactory 2006 Flood Risk Reduction
Long Lake Colorado Routt 20 High Satisfactory 1942 Water Supply
Kitson Colorado Mesa 20 High Fair 1911 Irrigation
Ralston #1 Colorado Garfield 20 Low Not Rated 1904 Irrigation
W. Cherry Creek Det. #6 Colorado El Paso 20 Low Fair 1961 Flood Risk Reduction
Wildhorse Colorado Weld 20 High Not Rated 1920 Irrigation
Lockport Colorado Jefferson 20 Significant Fair 1984 Water Supply

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.