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
Weber Creek Subwatershed Site M-11136 Iowa Woodbury 27 Low Not Rated 1955 Fire Protection, Stock, Or ...
Lum Hollow Subwatershed 12-10865 Iowa Woodbury 27 Low Not Rated 1959 Fire Protection, Stock, Or ...
Badger Creek Watershed Site 30-3 Iowa Madison 27 Low Not Rated 1984 Fire Protection, Stock, Or ...
Lum Hollow Subwatershed 7-2982 Iowa Woodbury 27 Low Not Rated 1959 Fire Protection, Stock, Or ...
Tucker/Rath/Sewell Dam Iowa Crawford 27 Low Not Rated 1965 Fire Protection, Stock, Or ...
Soap Creek Watershed Site 90-97 Iowa Wapello 27 Low Not Rated 1997
Troublesome Cr Watershed Site 60-1 Iowa Guthrie 27 Low Not Rated 1984 Fire Protection, Stock, Or ...
Walters Creek Watershed Site 29-3 Iowa Adams 27 Low Not Rated 1969 Fire Protection, Stock, Or ...
Big Wyacondah Watershed Site 24 Iowa Davis 27 Low Not Rated 1966 Fire Protection, Stock, Or ...
Mosquito of Harrison Watershed Site C-1 Iowa Harrison 27 Low Not Rated 1990 Fire Protection, Stock, Or ...
Ryan Henschal Watershed Site F-1 Iowa Pottawattamie 27 Low Not Rated 1965 Fire Protection, Stock, Or ...
Big Wyacondah Watershed Site 21b-1 Iowa Davis 27 Low Not Rated 1976 Fire Protection, Stock, Or ...
Steinbeck/Iowa Dnr Iowa Washington 27 Low Not Rated 2003 Grade Stabilization
Nutt Hollow Subwatershed Site M-12855 Iowa Monona 27 Low Not Rated 1958 Fire Protection, Stock, Or ...
Badger Creek Watershed Site 35-1 Iowa Madison 27 Low Not Rated 1961 Fire Protection, Stock, Or ...
Big Wyacondah Watershed Site 38-A Iowa Davis 27 Low Not Rated 1971 Fire Protection, Stock, Or ...
Big Wyacondah Watershed Site 20 Iowa Davis 27 Low Not Rated 1971 Fire Protection, Stock, Or ...
Walters Creek Watershed Site 24-3 Iowa Adams 27 Low Not Rated 1968 Fire Protection, Stock, Or ...
Bear Creek Watershed Site 48 Iowa Winneshiek 27 Low Not Rated 2005 Flood Risk Reduction
English Bench Watershed Site 2 Iowa Allamakee 27 Low Not Rated 1969 Fire Protection, Stock, Or ...
Honey Creek Watershed Site C-7 Iowa Lucas 27 Low Not Rated 1954 Fire Protection, Stock, Or ...
Ralston Subwatershed Site M-2 Iowa Cherokee 27 Low Not Rated 1969 Fire Protection, Stock, Or ...
Badger Creek Watershed Site 19-3 Iowa Madison 27 Low Not Rated 1974 Fire Protection, Stock, Or ...
East Fork Grand River Watershed Site A-34 Iowa Union 27 Low Not Rated 2008 Flood Risk Reduction
Soap Creek Watershed Site 26-71 Iowa Davis 27 Low Not Rated 1994 Fire Protection, Stock, Or ...
Soap Creek Watershed Site 4-56 Iowa Appanoose 27 Low Not Rated 1998 Fire Protection, Stock, Or ...
Warren Co. Conservatation Park Dam Iowa Warren 27 Low Not Rated 1961 Recreation
Arnold-Armstrong Subwtrshd 64+00 #25 Iowa Monona 27 Low Not Rated 1961 Fire Protection, Stock, Or ...
Mc Larty-Edwards Subwtrshd #M 100+30 Iowa Woodbury 27 Low Not Rated 1966 Fire Protection, Stock, Or ...
Crawford Creek Subwatershed Site 13-2 Iowa Ida 27 Low Not Rated 1974 Fire Protection, Stock, Or ...
Wolf Creek Subwatershed Site 5-1 Iowa Woodbury 27 Low Not Rated 1971 Fire Protection, Stock, Or ...
Big Wyacondah Watershed Site 27-A-3 Iowa Davis 27 Low Not Rated 1971 Fire Protection, Stock, Or ...
Soap Creek Watershed Site 4-91 Iowa Appanoose 27 Low Not Rated 2005 Flood Risk Reduction
Elkhorn No.2 Subwatershed 1-5000 Iowa Plymouth 27 Low Not Rated 1961 Fire Protection, Stock, Or ...
Soap Creek Watershed Site 90-95 Iowa Wapello 27 Low Not Rated 2003 Flood Risk Reduction
Big Wyacondah Watershed Site 27-H Iowa Davis 27 Low Not Rated 1976 Fire Protection, Stock, Or ...
Appanoose County Roadgrade Dam L-3-65 Iowa Appanoose 27 Low Not Rated 1964 Fire Protection, Stock, Or ...
Davis-Battle Cr. Watershed Site F-1 Iowa Monona 27 Low Not Rated 1969 Fire Protection, Stock, Or ...
Diamond Lake Watershed Site B-8 Iowa Poweshiek 27 Significant Fair 1971 Fire Protection, Stock, Or ...
Zellmer Subwtrshd #B 22+50 Iowa Woodbury 27 Low Not Rated 1964 Fire Protection, Stock, Or ...
Sopa Creek Watershed Site 4-40a Iowa Appanoose 27 Low Not Rated 1998 Fire Protection, Stock, Or ...
Davis-Battle Cr. Watershed Site G-2 Iowa Monona 27 Low Not Rated 1966 Fire Protection, Stock, Or ...
Mc Call Subwatershed Site 8-1 Iowa Monona 27 Low Not Rated 1964 Fire Protection, Stock, Or ...
Soap Creek Watershed Site 26-32 Iowa Davis 27 Low Not Rated 1995 Fire Protection, Stock, Or ...
Soap Creek Watershed Site 4-73 Iowa Appanoose 27 Low Not Rated 2005 Flood Risk Reduction
Big Wyacondah Watershed Site 27-G-2 Iowa Davis 27 Low Not Rated 1971 Fire Protection, Stock, Or ...
East Fork Grand River Watershed Site E-38 Iowa Ringgold 27 Low Not Rated 2006 Flood Risk Reduction
Upper Locust Watershed Site L-5 Iowa Wayne 27 Low Not Rated 1999 Fire Protection, Stock, Or ...
Twelve Mile Creek Watershed Site 72-1 Iowa Union 27 Low Not Rated 1979 Fire Protection, Stock, Or ...
West Fork Big Creek Watershed Site W-11 Iowa Ringgold 27 Low Not Rated 2000 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.