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Browse Dams

1,156 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 1,156 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
Erie Basin 2 Minnesota St. Louis 250 Significant Satisfactory 1978 Tailings
Essar Steel Tailings Basin Minnesota Itasca 200 Significant Satisfactory 2011 Tailings
Erie Basin 1 Minnesota St. Louis 200 Significant Satisfactory 1978 Tailings
Poly Met Hrf Dam Minnesota St. Louis 111 Significant — — Tailings
Canisteo No. 2 North Minnesota Itasca 100 Low — — Tailings
Hibbing Taconite Starter No. 2 Minnesota St. Louis 100 Undetermined — 1975 Tailings
Hibbing Taconite Starter No. 4 Minnesota St. Louis 100 Undetermined — — Tailings
Western Hibtac Minnesota St. Louis 100 Undetermined — 1978 Tailings
Hibbing Taconite Tailings Basin Minnesota St. Louis 100 High — — Tailings
Northshore Mining Minnesota Lake 100 High — 1977 Tailings
Hibbing Taconite Reclaim Pond Minnesota St. Louis 100 High — — Tailings
St. Anthony Falls Upper Lock and Dam Minnesota Hennepin 93 Significant Not Available 1963 Navigation
Fond Du Lac Minnesota St. Louis 80 High Satisfactory 1924 Hydroelectric
Kaposia Park Minnesota Dakota 79 Significant Satisfactory 1932 Flood Risk Reduction
Canisteo Pit Minnesota Itasca 75 Low Satisfactory — Tailings
South Zumbro Br-1 Minnesota Olmsted 75 High Satisfactory 1991 Flood Risk Reduction
Lake Byllesby Minnesota Dakota 75 High Satisfactory 1911 Hydroelectric
Rapidan Minnesota Blue Earth 73 Significant Unsatisfactory 1910 Hydroelectric
Essar Steel Reclaim Pond Minnesota Itasca 70 Low Not Rated 2011 Tailings
Nspc Stage 2 Tailings Minnesota St. Louis 70 Significant Satisfactory 1978 Tailings
Polymet-Ltv Minnesota St. Louis 69 Significant Satisfactory 1981 Tailings
Winton Minnesota Lake 67 Low Satisfactory 1923 Hydroelectric
Lazarus Creek Minnesota Yellow Medicine 67 Significant Satisfactory 2005 Flood Risk Reduction
Canby R-6 Minnesota Yellow Medicine 66 High Fair 1981 Flood Risk Reduction
Lake Zumbro Minnesota Wabasha 65 High — 1919 Hydroelectric
Hill Annex No. 3 (South) Minnesota Itasca 65 Low Satisfactory 1920 Tailings
Hill Annex No. 1 (North) Minnesota Itasca 63 Low Fair 1954 Tailings
Canby R-1 Minnesota Yellow Medicine 62 High Satisfactory 1985 Flood Risk Reduction
Hauschild-Thanghe Minnesota Lincoln 62 Low Satisfactory 1980 Flood Risk Reduction
Crooked Creek R-3 Minnesota Houston 60 High — 1968 Flood Risk Reduction
Upland Cell Ii Interior Minnesota St. Louis 60 Significant — 2011 Tailings
Orwell Dam Minnesota Otter Tail 60 High Not Available 1953 Flood Risk Reduction
O'Brien North Minnesota Itasca 58 Significant Satisfactory 1972 Tailings
St. Anthony Falls Lower Lock and Dam Minnesota Hennepin 58 Significant Not Available 1956 Navigation
Lind Greenway Minnesota Itasca 58 Significant Fair 1976 Tailings
Walnut Grove Minnesota Redwood 57 Significant Satisfactory 1979 Flood Risk Reduction
Island Lake Minnesota St. Louis 57 High Fair 1915 Hydroelectric
Mississippi River Locks and Dam 1 Minnesota Hennepin 56 Significant Not Available 1917 Navigation
Crooked Creek R-1 Minnesota Houston 56 Low — 1967 Flood Risk Reduction
South Zumbro Wr-6a Minnesota Olmsted 56 High Satisfactory 1989 Flood Risk Reduction
Belle Creek R-4 Minnesota Goodhue 56 High — 1977 Flood Risk Reduction
Belle Creek R-2 Minnesota Goodhue 55 High Satisfactory 1983 Flood Risk Reduction
Dillon-Syltie-Boulton Minnesota Lincoln 54 Significant Satisfactory 1974 Flood Risk Reduction
Crooked Creek R-4 Minnesota Houston 54 Significant Satisfactory 1967 Flood Risk Reduction
Fargo-Moorhead Diversion Minnesota Clay 54 High — — Flood Risk Reduction
Tetonka Ridge Minnesota Lincoln 52 Low Poor — Flood Risk Reduction
Thomson Dam No 6 Minnesota Carlton 52 High Satisfactory 1907 Hydroelectric
Crooked Creek R-2 Minnesota Houston 52 Significant Satisfactory 1966 Flood Risk Reduction
Wellner-Hageman Minnesota Brown 52 Low Satisfactory 1993 Flood Risk Reduction
Belle Creek R-1 Minnesota Goodhue 51 Significant — 1979 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.