Iowa Dams
4,124 dams tracked by the National Inventory of Dams
Total Dams
4,124
High Hazard
91
2.2%
Poor / Unsatisfactory
25
Average Age
46 yrs
Hazard Classification
High91 (2.2%)
Significant274 (6.6%)
Low3,759 (91.1%)
Condition Assessment
Satisfactory259 (6.3%)
Fair81 (2.0%)
Poor / Unsatisfactory25 (0.6%)
Not Rated3,759 (91.1%)
Federal
25
State
141
Local
1,938
Private
2,014
Tallest Dams
- Coralville Dam132 ft
- Saylorville Dam125 ft
- County Basin Dam104 ft
- Rathbun Dam100 ft
- Brushy Creek Dam100 ft
High Hazard Dams
- Coralville DamHigh
- Saylorville DamHigh
- Rathbun DamHigh
- Brushy Creek DamHigh
- Big Creek Barrier DamHigh
Poor Condition Dams
All Dams in Iowa
Showing 1701–1725 of 3,759
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Koop Dam Butler County | 28 | 1990 | Low | Not Rated |
| Kopecky Dam Fremont County | 31 | 2005 | Low | Not Rated |
| Kopete Farms Dam Taylor County | 26 | 1971 | Low | Not Rated |
| Korn Dam Crawford County | 26 | 1959 | Low | Not Rated |
| Koski Dam Harrison County | 41 | 2011 | Low | Not Rated |
| Kossuth County Roadgrade Dam 16-100-30 Kossuth County | 11 | 1999 | Low | Not Rated |
| Krogmeier Dam Jefferson County | 27 | 2023 | Low | Not Rated |
| Kromminga Dam Benton County | 17 | 1970 | Low | Not Rated |
| Kruger Dam Greene County | 38 | 2013 | Low | Not Rated |
| Kruse Dam Boone County | 48 | 1956 | Low | Not Rated |
| Kruse Dam Calhoun County | 34 | 1972 | Low | Not Rated |
| Krutsinger Dam Lucas County | 32 | 1996 | Low | Not Rated |
| Kuhl Dam Union County | 31 | 1997 | Low | Not Rated |
| Kuhlman Dam Crawford County | 37 | 1963 | Low | Not Rated |
| Kuhn Dam Guthrie County | 8 | 1992 | Low | Not Rated |
| Lacey Dam Ida County | 28 | 1961 | Low | Not Rated |
| Lacey Dam Crawford County | 34 | 1968 | Low | Not Rated |
| Lacey-Keosaqua Park Lake Dam Van Buren County | 47 | 1930 | Low | Satisfactory |
| Lake Business Park Dam Dickinson County | 14 | 1995 | Low | Not Rated |
| Lake Canyada Dam Scott County | 17 | 1958 | Low | Fair |
| Lake Eleanor Dam Dubuque County | 28 | 1967 | Low | Not Rated |
| Lake Fin-Feather Dam Cerro Gordo County | 25 | 1972 | Low | Not Rated |
| Lake Icaria Sediment Detention Dam Adams County | 12 | 2004 | Low | Not Rated |
| Lake Keomah Silt Dam Mahaska County | 25 | 1938 | Low | Not Rated |
| Lake Maharry Dam Taylor County | 21 | 1969 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.