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 2276–2300 of 4,124
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Klondike Mill Dam Lyon County | 12 | — | Low | Not Rated |
| Klockgether Dam Crawford County | 35 | 1962 | Low | Not Rated |
| Klinker Dam Clarke County | 29 | 2009 | Low | Not Rated |
| Kline/Peterson Dam Harrison County | 37 | 1966 | Low | Not Rated |
| Klein Dam Marion County | 35 | 1966 | Low | Not Rated |
| Kitzman Dam Taylor County | 21 | 1967 | Low | Not Rated |
| Kistler Dam Jefferson County | 15 | 1987 | Low | Not Rated |
| Kisling Dam Van Buren County | 29 | 1996 | Low | Not Rated |
| Kirk Joy Dam Union County | 25 | 1987 | Low | Not Rated |
| Kirkholm Subwatershed A-3700 Ida County | 30 | 1949 | Low | Not Rated |
| Kiowa Marsh Dam Sac County | 10 | 2001 | Low | Not Rated |
| Kiowa Marsh Dam Sac County | 11 | 1992 | Low | Not Rated |
| Kinser Dam Montgomery County | 30 | 1999 | Low | Not Rated |
| Kinney Dam Henry County | 26 | 2003 | Low | Not Rated |
| Kinney Dam Des Moines County | 32 | 1969 | Low | Not Rated |
| Kingfisher Hollow Dam Clinton County | 8 | 1974 | Low | Not Rated |
| Kingery Dam Marion County | 29 | 1997 | Low | Not Rated |
| King Dam Polk County | 26 | 1967 | Low | Not Rated |
| Kinder/Patterson Dam Monona County | 37 | 1966 | Low | Not Rated |
| Kincart Farms Dam Davis County | 25 | 1975 | Significant | Not Rated |
| Kimberly Dam Jasper County | 25 | 1970 | Low | Not Rated |
| Kieser Dam Decatur County | 23 | 1988 | Low | Not Rated |
| Keyser Wetland Dam Carroll County | 7 | 1995 | Low | Not Rated |
| Kevin Wagler Dam Henry County | 28 | 2008 | Low | Not Rated |
| Kevin Briggs Dam Wayne County | 26 | 2019 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.