Browse Dams

92,766 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 92,766 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
W Fork Pt Remove Creek Wid Site 05 Arkansas Franklin 66 Low Satisfactory 1963 Flood Risk Reduction
Lake Elkhorn Kentucky Scott 66 Low Satisfactory 1988 Recreation
Queen Mary Dam Missouri Iron 66 High Satisfactory 1959 Other
Papio Creek 13 - Youngman Nebraska Douglas 66 High Satisfactory 2006 Flood Risk Reduction
Hollidaysburg Muleshoe Reservoir Pennsylvania Blair 66 High Satisfactory 1957 Water Supply
Kincaid Creek Dam Kentucky Pendleton 66 High Poor 1961 Recreation
Pa-480 Pennsylvania Washington 66 High Satisfactory 1979 Flood Risk Reduction
Dolby Maine Penobscot 66 High Satisfactory 1906 Hydroelectric
Waubonsie Cr. Watershed Site 3-11 Iowa Mills 66 Low Not Rated 1989 Fire Protection, Stock, Or ...
Peabody Coulterville/Gateway/Slurry Cell 5 Dam Illinois Randolph 66 Low Not Available - Other
Hoosier Energy Reservoir Dam Indiana Sullivan 66 High Satisfactory 1980 Water Supply
Hickory Hollow Farm Dam South Carolina Spartanburg 66 Low Poor 1971 Recreation
Aston Oaks Lake Dam Ohio Hamilton 66 High Fair 2000 Flood Risk Reduction
Jennings Creek #17 Dam Tennessee Macon 66 High Satisfactory 1964
Canby R-6 Minnesota Yellow Medicine 66 High Fair 1981 Flood Risk Reduction
Red Dog Tailings Back Dam Alaska Northwest Arctic Borough 66 High Satisfactory 2010 Other
North Pigeon Cr Watershed Site 17 Iowa Pottawattamie 66 Low Not Rated 1973 Fire Protection, Stock, Or ...
Holmes Harbor Reclaimed Water Ponds Washington Island 66 Significant Fair 1994 Other
Licking Run Dam Virginia Fauquier 66 High Satisfactory - Flood Risk Reduction
Lake Bethany Dam Connecticut New Haven 66 High Satisfactory 1892 Water Supply
Sunset Lake Dam (Lake Ski Dam) Missouri Ste. Genevieve 66 High Satisfactory 1976 Recreation
Trafton Lake Maine Aroostook 66 High Fair 1969 Flood Risk Reduction
Hargus Lake Dam Ohio Pickaway 66 High Poor 1956 Recreation
Hopkinton Dam - Dike H-3 New Hampshire Merrimack 66 High Not Available 1962 Flood Risk Reduction
Buffumville Dam Massachusetts Worcester 66 High Not Available 1958 Flood Risk Reduction
Aberdeen Lock and Dam Mississippi Monroe 66 Significant Not Available 1984 Navigation
Lake Wabaunsee Dam Kansas Wabaunsee 66 High Satisfactory 1996 Water Supply
Little Walnut Creek Conservancy District Structure #4 Indiana Putnam 66 High Fair 1976 Flood Risk Reduction
D.O.E. Savannah River Par Pond Lower Dam South Carolina Barnwell 66 High Not Available 1959 Other
Springfield Coal/Orient 4/East Slurry Imp Illinois Williamson 66 High Not Available 1985 Other
Clear Fork Trinity River WS SCS Site 23 Dam Texas Parker 66 High Not Rated 1957 Flood Risk Reduction
SCS-Sandstone Creek Site-115 Oklahoma Roger Mills 66 Low Not Rated 1962 Flood Risk Reduction
SCS-Fourche Maline Creek Site-07 Oklahoma Latimer 66 High Fair 1964 Water Supply
Oolenoy River WCD Dam 9 South Carolina Pickens 66 High Fair 1978 Flood Risk Reduction
Frd No 1-5 Kansas Chase 66 High Fair 1970 Flood Risk Reduction
Wild Rice Creek No. 3 South Dakota Marshall 66 Low - 1961 Flood Risk Reduction
Winchester North Effluent Retention Dam Kentucky Clark 66 Low Poor 1991 Debris Control
Harrison County Roadgrade Dam 18-79-43 Iowa Harrison 66 Significant Fair 1959 Other
SCS-Sallisaw Creek Site-08 Oklahoma Sequoyah 66 Low Not Rated 1964 Flood Risk Reduction
Elk Two Mile #14 Dam West Virginia Kanawha 66 High Satisfactory 1996 Flood Risk Reduction
Elk-Two Mile No.12 West Virginia Kanawha 66 High Satisfactory 1975 Flood Risk Reduction
Salado Creek WS SCS Site 10 Dam Texas Bexar 66 High Not Rated 1994 Flood Risk Reduction
Peace Valley (Pa-617) Pennsylvania Bucks 66 High Satisfactory 1973 Flood Risk Reduction
Seventh Day Adventist Lake Dam Georgia Murray 66 High Satisfactory 1979 Recreation
Martin County Water District No 1 Dam Kentucky Martin 66 High Poor 1969 Water Supply
Lake Houston Dam Texas Harris 66 High Satisfactory 1954 Irrigation
LITTLE KY RIVER MPS 1 Kentucky Henry 66 High Fair 1967 Flood Risk Reduction
Pine Hollow Oregon Wasco 66 High Satisfactory 1969 Irrigation
Knight Hawk Coal/Praire Eagle Mine/010b Slurry Dam Illinois Perry 66 Significant Not Available 2006 Tailings
Twelve Mile Creek Watershed Site M-1 Iowa Union 66 High Satisfactory 1983 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.