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.
| Name | State | County | Height (ft) | Hazard | Condition | Year | Purpose |
|---|---|---|---|---|---|---|---|
| Dawson Dam | Iowa | Des Moines | 40 | Low | Not Rated | 1972 | Fire Protection, Stock, Or ... |
| Bacon Creek Watershed Site H-1-3 | Iowa | Woodbury | 40 | Significant | Satisfactory | 1981 | Fire Protection, Stock, Or ... |
| Gant Creek Watershed Site C-3 | Iowa | Plymouth | 40 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Wolf Creek Subwatershed Site 5a-1 | Iowa | Woodbury | 40 | Low | Not Rated | 1971 | Fire Protection, Stock, Or ... |
| Mc Dowel Dam #1 | Iowa | Lee | 40 | Significant | Satisfactory | 1967 | Recreation |
| Paulson Dam | Iowa | Mills | 40 | Low | Not Rated | 1977 | Fire Protection, Stock, Or ... |
| Iowa Noname48 | Iowa | Shelby | 40 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Lum Hollow Subwatershed 9-5186 | Iowa | Woodbury | 40 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Diamond Lake Dam (Poweshiek Co) | Iowa | Poweshiek | 40 | Significant | Satisfactory | 1952 | Water Supply |
| Bacon Creek Watershed Site H-1-2 | Iowa | Woodbury | 40 | Significant | Not Rated | 1981 | Flood Risk Reduction |
| Pierce Creek No 1 Watershed Site 5 | Iowa | Page | 40 | Low | Not Rated | 1969 | Fire Protection, Stock, Or ... |
| Albia Reservoir Dam | Iowa | Monroe | 40 | Significant | Fair | 1938 | Recreation |
| Walling Subwatershed Sta 99+70 #1 | Iowa | Woodbury | 40 | Low | Not Rated | 1953 | Other |
| Beach Dam | Iowa | Henry | 40 | Low | Not Rated | 1975 | Recreation |
| Mill Picayune Watershed Site P-39-2 | Iowa | Shelby | 40 | Low | Not Rated | 1986 | Fire Protection, Stock, Or ... |
| Mount Ayr Reservoir Dam | Iowa | Ringgold | 40 | Significant | Fair | 1930 | Water Supply |
| Mill Picayune Watershed Site M-24-17 | Iowa | Shelby | 40 | Significant | Satisfactory | 1984 | Fire Protection, Stock, Or ... |
| Westside Subwatershed Site 2-1 | Iowa | Ida | 40 | Low | Not Rated | 1985 | Fire Protection, Stock, Or ... |
| Mosquito Creek Watershed Site 6-2 | Iowa | Harrison | 40 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| West Wolf Creek Subwatershed Site 13 | Iowa | Woodbury | 40 | Low | Not Rated | 1990 | Fire Protection, Stock, Or ... |
| Hunter Dam | Iowa | Jasper | 40 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Iowa Select Farms Dam | Iowa | Union | 40 | Low | Not Rated | 1997 | Water Supply |
| Mill Picayune Watershed Site M-27-1 | Iowa | Crawford | 40 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| Heisler Creek Subwtrshd Sta 29+80 #3d | Iowa | Woodbury | 40 | Low | Not Rated | 1960 | Fire Protection, Stock, Or ... |
| Mill Picayune Watershed Site M-6 | Iowa | Shelby | 40 | Low | Not Rated | 1961 | Fire Protection, Stock, Or ... |
| White Dam | Iowa | Des Moines | 40 | Low | Not Rated | 1988 | Fire Protection, Stock, Or ... |
| Robeson Subwatershed Site 4400 | Iowa | Cherokee | 40 | Low | Not Rated | 1955 | Fire Protection, Stock, Or ... |
| Leech Hollow Subwatershed Site C-11 | Iowa | Monona | 40 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Heisler Subwatershed Site 2-1 | Iowa | Woodbury | 40 | Low | Not Rated | 2004 | Flood Risk Reduction |
| Bitter Creek Subwatershed Site 1-1 | Iowa | Ida | 40 | Low | Not Rated | 1978 | Fire Protection, Stock, Or ... |
| Kennedy & Johns Dam | Iowa | Plymouth | 40 | Significant | Not Rated | 1975 | Fire Protection, Stock, Or ... |
| Leech Hollow Subwatershed Site C-6 | Iowa | Monona | 40 | Low | Not Rated | 1970 | Fire Protection, Stock, Or ... |
| Fridley Dam | Iowa | Warren | 40 | Low | Not Rated | 1977 | Recreation |
| Weber Creek Subwatershed Site M-17052 | Iowa | Woodbury | 40 | Low | Not Rated | 1956 | Fire Protection, Stock, Or ... |
| Iowa Noname43 | Iowa | Pottawattamie | 40 | Low | Not Rated | 1959 | Fire Protection, Stock, Or ... |
| Conley Dam | Iowa | Cherokee | 40 | Low | Not Rated | 1997 | Fire Protection, Stock, Or ... |
| Dutch Hollow Subwatershed Site 1-2 | Iowa | Woodbury | 40 | Low | Not Rated | 1989 | Fire Protection, Stock, Or ... |
| South Hungerford 2 Watershed Site 11 | Iowa | Plymouth | 40 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Little Beaver Subwatershed M-16730 | Iowa | Woodbury | 40 | Low | Not Rated | 1957 | Fire Protection, Stock, Or ... |
| Crawford Creek Subwatershed Site 13f-1 | Iowa | Ida | 40 | Low | Not Rated | 1974 | Fire Protection, Stock, Or ... |
| Iowa Noname6 | Iowa | Boone | 40 | Low | Not Rated | 1963 | Fire Protection, Stock, Or ... |
| College Corner Subwatershed Site 4-5 | Iowa | Woodbury | 40 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Pony Creek Watershed Site 24 | Iowa | Mills | 40 | Low | Not Rated | 1964 | Fire Protection, Stock, Or ... |
| Louisa County Raodgrade Dam 36-73-3 | Iowa | Louisa | 40 | Low | Not Rated | 2002 | Grade Stabilization |
| East Aldrich Subwatershed B-4780 | Iowa | Ida | 40 | Low | Not Rated | 1954 | Fire Protection, Stock, Or ... |
| Held Watershed Site D-1 | Iowa | Plymouth | 40 | Low | Not Rated | 1979 | Fire Protection, Stock, Or ... |
| Springbrook Lake Dam | Iowa | Guthrie | 40 | Significant | Satisfactory | 1934 | Recreation |
| Vande Stroet Dam | Iowa | Sioux | 40 | Low | Not Rated | 1967 | Fire Protection, Stock, Or ... |
| Stennett-Red Oak Watershed Site 11 | Iowa | Montgomery | 40 | Low | Not Rated | 1965 | Fire Protection, Stock, Or ... |
| Sun Valley Lake Sediment Basin | Iowa | Ringgold | 40 | Significant | - | 2019 | Other |
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.