Browse Dams

4,128 dams in the National Inventory of Dams.

National Inventory of Dams

Browse 4,128 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
Woods Hollow Subwatershed Site 1-2875 Iowa Monona 26 Low Not Rated 1960 Fire Protection, Stock, Or ...
Davids Creek Watershed Site 25-9 Iowa Audubon 26 Low Not Rated 1966 Fire Protection, Stock, Or ...
Turkey Cr Watershed Site 10-25 Iowa Cass 26 Low Not Rated 1990 Fire Protection, Stock, Or ...
Big Wyacondah Watershed Site 10 Iowa Davis 26 Low Not Rated 1976 Fire Protection, Stock, Or ...
Badger Creek Watershed Site 40-1 Iowa Madison 26 Low Not Rated 1974 Fire Protection, Stock, Or ...
Troublesome Cr Watershed Site 31-4 Iowa Audubon 26 Low Not Rated 1995 Fire Protection, Stock, Or ...
Badger Creek Watershed Site 41-2 Iowa Madison 26 Low Not Rated 1963 Fire Protection, Stock, Or ...
Soap Creek Watershed Site 68-69b Iowa Monroe 26 Low Not Rated 2011 Flood Risk Reduction
Wolf Creek Subwatershed Site 6-1 Iowa Woodbury 26 Low Not Rated 1971 Fire Protection, Stock, Or ...
Parnell Creek Subwatershed Site 17-1 Iowa Woodbury 26 Low Not Rated 1967 Fire Protection, Stock, Or ...
Soap Creek Watershed Site 68-50 Iowa Monroe 26 Low Not Rated 1997 Fire Protection, Stock, Or ...
Big Whiskey 1 Subwatershed Site 13-1 Iowa Woodbury 26 Low Not Rated 1967 Fire Protection, Stock, Or ...
Shelby County Roadgrade Dam 1-81-40 Iowa Shelby 26 Low Not Rated 1958 Other
Parnell Creek Subwatershed Site M-4 Iowa Woodbury 26 Low Not Rated 1967 Fire Protection, Stock, Or ...
Nutt Hollow Subwatershed Site M-6842 Iowa Monona 26 Low Not Rated 1958 Fire Protection, Stock, Or ...
Troublesome Cr Watershed Site 38-1 Iowa Audubon 26 Low Not Rated 1978 Fire Protection, Stock, Or ...
Appanoose County Roadgrade Dam 27-68-19 Iowa Appanoose 26 Low Not Rated 1966 Fire Protection, Stock, Or ...
Soap Creek Watershed Site 26-36 Iowa Davis 26 Low Not Rated 1997 Fire Protection, Stock, Or ...
Soap Creek Watershed Site 90-113 Iowa Wapello 26 Low Not Rated 2003 Flood Risk Reduction
Troublesome Cr Watershed Site 49-5 Iowa Audubon 26 Low Not Rated 1982 Fire Protection, Stock, Or ...
Des Moines County Roadgrade Dam 6-69-4 Iowa Des Moines 26 Low Not Rated 1985 Other
Tom King Subwatershed Site 6290 Iowa Monona 26 Low Not Rated 1956 Fire Protection, Stock, Or ...
East Fork Grand River Watershed Site E-26 Iowa Ringgold 26 Low Not Rated 2008 Flood Risk Reduction
Cottonwood-Green Valley Subws 99+50 #2 Iowa Monona 26 Low Not Rated 1966 Fire Protection, Stock, Or ...
Soap Creek Watershed Site 4-35 Iowa Appanoose 26 Low Not Rated 1995 Fire Protection, Stock, Or ...
Rocky Branch Creek Watershed Site A-5 Iowa Jefferson 26 Low Not Rated 1960 Fire Protection, Stock, Or ...
Lower Beaver Subwtrshd Sta 80+04 #7a Iowa Monona 26 Low Not Rated 1965 Fire Protection, Stock, Or ...
West Fk Big Cr Watershed Site W-31 Iowa Ringgold 26 Low Not Rated 2005 Flood Risk Reduction
Se Des Moines Stormwater Det. Dam #4 Iowa Polk 26 Significant Satisfactory 1999 Flood Risk Reduction
Soap Creek Watershed Site 4-36 Iowa Appanoose 26 Low Not Rated 1999 Fire Protection, Stock, Or ...
Mc Call Subwatershed Site 32-1 Iowa Monona 26 Low Not Rated 1963 Fire Protection, Stock, Or ...
Turkey Cr Watershed Site 19-15 Iowa Cass 26 Low Not Rated 1972 Fire Protection, Stock, Or ...
Soap Creek Watershed Site 4-40b Iowa Appanoose 26 Low Not Rated 1998 Fire Protection, Stock, Or ...
East Fork Grand River Watershed Site D-42 Iowa Ringgold 26 Low Not Rated 2008 Flood Risk Reduction
East Fork Grand River Watershed Site E-44 Iowa Ringgold 26 Low Not Rated 2006 Flood Risk Reduction
East Fork Grand River Watershed Site E-43 Iowa Ringgold 26 Low Not Rated 2006 Flood Risk Reduction
East Fork Grand River Watershed Site D-63 Iowa Ringgold 26 Low Not Rated 2003 Grade Stabilization
West Fork Big Creek Wtrshd Site W-16 Iowa Ringgold 26 Low Not Rated 2005 Flood Risk Reduction
East Fork Grand River Watershed Site D-37 Iowa Ringgold 26 Low Not Rated 2008 Flood Risk Reduction
Badger Creek Lake Site 2 Iowa Madison 26 Low Not Rated 2017 Grade Stabilization
West Fk Big Cr Watershed Site W-14 Iowa Ringgold 26 Low Not Rated 2005 Flood Risk Reduction
Bruene-Spahn Subwtrshd Sta 32+82 #6 Iowa Woodbury 26 Low Not Rated 1964 Fire Protection, Stock, Or ...
Upper Locust Creek Watershed Site L-35 Iowa Wayne 26 Low Not Rated 1995 Fire Protection, Stock, Or ...
Three Mile Creek Watershed Site U-2 Iowa Union 26 Low Not Rated 1980 Fire Protection, Stock, Or ...
East Fork Grand River Watershed Site A-54 Iowa Union 26 Low Not Rated 2008 Flood Risk Reduction
Rocky Branch Creek Watershed Site H-5 Iowa Jefferson 26 Low Not Rated 1958 Fire Protection, Stock, Or ...
East Fork Grand River Watershed Site A-51 Iowa Ringgold 26 Low Not Rated 2001 Grade Stabilization
Cottonwood-Green Valley Subws 75+70 #2 Iowa Monona 26 Low Not Rated 1966 Fire Protection, Stock, Or ...
East Fork Grand River Watershed Site A-84 Iowa Ringgold 26 Low Not Rated 2007 Flood Risk Reduction
West Fork Big Cr Wtrshd Site B-39 Iowa Decatur 26 Low Not Rated 2003 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.