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Browse Dams

1,633 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 1,633 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
Orland Park Basin Dam Illinois Cook 7 Low Not Available 1992 Flood Risk Reduction
Prescott Mill Dam Illinois Kendall 7 Significant Not Available 2006 Flood Risk Reduction
St. Charles Dam Illinois Kane 7 Significant Not Available 1918 Flood Risk Reduction
Saganashkee Slough 6 Dam Illinois Cook 7 Significant Not Available 1948 Recreation
Milne Creek Weir Dam Illinois Will 7 Low Not Available — Flood Risk Reduction
Batavia Dam Illinois Kane 6 Significant Not Available 1916 Flood Risk Reduction
Martinsville Pond Dam Illinois Clark 6 Significant Not Available 1910 Fish and Wildlife Pond
Prairie Grass Boulevard Dam Illinois Will 6 Significant Not Available — Flood Risk Reduction
North Aurora Dam Illinois Kane 6 Significant Not Available 1974 Flood Risk Reduction
Otter Lake Low Flow Dam Illinois Macoupin 6 Low Not Available 2008 Debris Control
Herrin Reservoir 1 Dam Illinois Williamson 6 Significant Not Available 1915 Recreation
Lower Batavia Dam Illinois Kane 5 Significant Not Available 1916 Recreation
Twin Lakes Drive Dam Illinois Madison 0 Significant Not Available 1980 Recreation
Camino Venado Lake Dam Illinois Tazewell 0 Significant Not Available — Recreation
Brandon Kimbro Dam Illinois Sangamon 0 High Not Available 2016 Recreation
Fort Jesse Detention Pond Dam Illinois McLean 0 High Not Available — Flood Risk Reduction
Lake of The Woods 2 Dam Illinois Monroe 0 High Not Available — Recreation
Pilcher Park Dam Illinois Will 0 Significant Not Available — Recreation
Heuerman Pond Dam Illinois Peoria 0 Significant Not Available 1974 Recreation
Gebhardt Lake Dam Illinois St. Clair 0 High Not Available — Recreation
Marissa WWTP Basin Dam Illinois St. Clair 0 Significant Not Available — Other
Riverstone Group Dam Illinois Henry 0 High Not Available — Other
Baldwin Station Bottom Ash Pond Illinois Randolph 0 Significant Not Available — Other
Hennepin Station West Ash Pond Dam Illinois Putnam 0 Significant Not Available — Other
Alexander Pond Dam Illinois Bond 0 Significant Not Available 1973 Recreation
Anets Woods West Basin Dam Illinois Cook 0 Significant Not Available — Flood Risk Reduction
Grandwood Lake Dam Illinois Lake 0 High Not Available — Recreation
Baldwin Station Fly Ash Pond Illinois Randolph 0 Significant Not Available — Other
Dynegy/Havana Sta/South Ash Pond Dam Illinois Mason 0 Significant Not Available — Other
Lakewood Hills Lake Dam Illinois Winnebago 0 Significant Not Available — Recreation
Coffeen Station Ash Pond 2 Dam Illinois Montgomery 0 Significant Not Available — Other
Coffeen Station Ash Pond 1 Dam Illinois Montgomery 0 Significant Not Available — Other
Ruppert Pond Dam Illinois Montgomery 0 Significant Not Available 1977 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.