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 3251–3275 of 3,759
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Clements Dam Polk County | 26 | 1964 | Low | Not Rated |
| Clausen Dam Clinton County | 29 | 1975 | Low | Not Rated |
| Clark Subwatershed Gully 7 Sta70+00 Cherokee County | 37 | 1956 | Low | Not Rated |
| Clark Subwatershd Sta22+82 Main Gully Cherokee County | 29 | 1956 | Low | Not Rated |
| Clarks Lake Dam Jasper County | 23 | 1962 | Low | Not Rated |
| Clarke Co. Roadgrade Dam 8-73-25 Clarke County | 43 | 1992 | Low | Not Rated |
| Clark Dam Crawford County | 28 | 2004 | Low | Not Rated |
| Clark Dam Woodbury County | 39 | 1971 | Low | Not Rated |
| Clark Dam Decatur County | 32 | 1988 | Low | Not Rated |
| Clark Dam Iowa County | 22 | 2023 | Low | Not Rated |
| Clarinda Mhi Dam Page County | 34 | 1961 | Low | Not Rated |
| Claiser Dam Union County | 29 | 1974 | Low | Not Rated |
| Cipco Silt Dam Guthrie County | 51 | 1986 | Low | Satisfactory |
| Cibula Dam Tama County | 27 | 2003 | Low | Not Rated |
| Christensen Dam Crawford County | 30 | 1999 | Low | Not Rated |
| Christensen Dam Humboldt County | 32 | 1985 | Low | Not Rated |
| Christensen Dam Page County | 24 | 2005 | Low | Not Rated |
| Christen Dam Fayette County | 26 | 1996 | Low | Not Rated |
| Chizek Dam Tama County | 25 | 2004 | Low | Not Rated |
| Chipp Dam Lucas County | 36 | 1996 | Low | Not Rated |
| Chickering Dam Davis County | 30 | 1996 | Low | Not Rated |
| Cherry Tree Subdivision Dam Jefferson County | 22 | 1999 | Low | Not Rated |
| Chenoweth Dam Davis County | 29 | 1974 | Low | Not Rated |
| Cheney Dam Fremont County | 36 | 1961 | Low | Not Rated |
| Chelar Roadgrade Dam Monroe County | 28 | 1990 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.