Browse Dams

12,550 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 12,550 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
Valmont 'A' Colorado Boulder 80 High Fair 1962 Water Supply
Indian Wash Det. Colorado Mesa 80 High Fair 1965 Flood Risk Reduction
Judy Reservoir Dam B Washington Skagit 80 High Fair 1946 Water Supply
Rattlesnake Canyon California Orange 79 High Fair 1959 Water Supply
Patterson Creek No. 4 Dam West Virginia Grant 79 High Fair 1966 Flood Risk Reduction
Skaguay Colorado Teller 79 Significant Fair 1901 Recreation
Hunting Creek Dam Maryland Frederick 79 High Fair 1969 Water Supply
Wissota South Saddle Dike Wisconsin Chippewa 79 High Fair 1917 Hydroelectric
Souhegan River Site 26 Dam New Hampshire Hillsborough 79 High Fair 1965 Flood Risk Reduction
Lee Nuclear Dam 1 South Carolina Cherokee 79 Low Fair — Other
Lake Pat Cleburne Dam Texas Johnson 78 High Fair 1964 Water Supply
Pena Blanca Arizona Santa Cruz 78 High Fair 1958 Fish and Wildlife Pond
Muddy Fork Site 4 Arkansas Washington 78 High Fair 1967 Water Supply
Cove Point Lng Main Dam Maryland Calvert 78 Significant Fair 1974 Recreation
SCS-Okfuskee Tributaries Site-S1 Oklahoma Okmulgee 78 High Fair 1972 Water Supply
Taylorsville Dam Ohio Montgomery 78 High Fair 1922 Flood Risk Reduction
Fairchild No. 1 (Upper) Idaho Washington 78 High Fair 1975 Irrigation
Terminal Colorado La Plata 78 High Fair 1982 Hydroelectric
Boyds Corner Dam New York Putnam 78 High Fair 1872 Water Supply
Lockington Dam Ohio Shelby 78 High Fair 1922 Flood Risk Reduction
Rye Patch Dam Nevada Pershing 78 High Fair 1936 Irrigation
Caney Creek Dam Louisiana Jackson 78 High Fair 1986 Recreation
South Fork No.18 West Virginia Pendleton 78 High Fair 1968 Flood Risk Reduction
Lake Casa Blanca Dam Texas Webb 78 High Fair 1946 Irrigation
Meridian Lake Park #1 Colorado Gunnison 78 Significant Fair 1980 Water Supply
Lake Frank Maryland Montgomery 78 High Fair 1967 Recreation
Poteau River Wid Site 15 Arkansas Scott 77 Significant Fair 1971 Recreation
Aikman Idaho Gem 77 High Fair 1999 Irrigation
Meadow Creek Colorado Garfield 77 High Fair 1958 Recreation
Red Lick Creek FRS 2 Kentucky Madison 77 High Fair 1986 Flood Risk Reduction
SCS-Caston Mountain Creek Site-4 Oklahoma Le Flore 77 High Fair 1971 Flood Risk Reduction
Mckelvey Lake Dam Ohio Mahoning 77 High Fair 1926 Water Supply
LG&E Mill Creek Station Dam Kentucky Jefferson 77 High Fair 1976 Other
SCS-Caddo Creek Site-27 Oklahoma Carter 77 High Fair 1969 Flood Risk Reduction
Campbell Cove Dam Tennessee Polk 77 High Fair 1963 Water Supply
Farmer Lake Dam North Carolina Caswell 77 High Fair 1983 Flood Risk Reduction
Monument Colorado Gunnison 76 High Fair 1889 Irrigation
Mill Creek California Santa Cruz 76 High Fair 1889 Water Supply
Jewell Brook Site No. 3 Vermont Windsor 76 High Fair 1970 Flood Risk Reduction
Big Warrior Creek Dam North Carolina Wilkes 76 High Fair 2000 Recreation
Taylor Pond (Pa-446) Pennsylvania Pike 76 High Fair 1963 Flood Risk Reduction
Dam No 18-26 (Boy Scout Lake) Kansas Chautauqua 76 High Fair 1965 Flood Risk Reduction
Mission Ready Dam North Carolina Graham 76 High Fair — Recreation
Lacygne Lake Dam Kansas Linn 76 High Fair 1971 Other
Hamilton Lake (Pa-602) Pennsylvania Tioga 76 High Fair 1967 Flood Risk Reduction
Suttenfield California Sonoma 76 High Fair 1938 Water Supply
Hunters Run Structure No. 9 Ohio Fairfield 76 High Fair 1959 Flood Risk Reduction
Billingsley Dam Arizona Graham 76 High Fair 1976 Flood Risk Reduction
Cottonwood Utah Uintah 76 High Fair 1982 Irrigation
North Silver Lake Dam Massachusetts Berkshire 76 High Fair — 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.