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 3301–3325 of 3,759
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Carver Dam Story County | 26 | 1991 | Low | Not Rated |
| Carter Dam Madison County | 36 | 1993 | Low | Not Rated |
| Carter Dam Des Moines County | 31 | 1986 | Low | Not Rated |
| Carter Dam Iowa County | 28 | 1971 | Low | Not Rated |
| Carter Dam Jefferson County | 28 | 1967 | Low | Not Rated |
| Carstens & Stover Dam Crawford County | 38 | 1971 | Low | Not Rated |
| Carson Dam Clarke County | 26 | 1979 | Low | Not Rated |
| Carson Dam Cherokee County | 32 | 1977 | Low | Not Rated |
| Carson Dam Johnson County | 27 | 1978 | Low | Not Rated |
| Carrier Dam Lee County | 35 | 1974 | Low | Not Rated |
| Carpenter Dam Warren County | 48 | 1977 | Low | Not Rated |
| Carlson/Walsh Dam Pottawattamie County | 45 | 1969 | Low | Not Rated |
| Carlson Dam Audubon County | 33 | 1950 | Low | Not Rated |
| Carlson Dam Monona County | 27 | 1971 | Low | Not Rated |
| Carl Kirkland Dam Union County | 32 | 2014 | Low | Not Rated |
| Carl Dam Benton County | 33 | 1999 | Low | Not Rated |
| Carbaugh Dam Montgomery County | 38 | 2023 | Low | Not Rated |
| Caputo Dam Marshall County | 21 | 1978 | Low | Not Rated |
| Cannon Dam Decatur County | 28 | 1988 | Low | Not Rated |
| C and R Ag Dam Dallas County | 20 | 2007 | Low | Not Rated |
| Camp Wa Shawtee Dam Fremont County | 50 | 1963 | Low | Not Rated |
| Camp Klaus Dam Clayton County | 50 | 1978 | Low | Not Rated |
| Camp Hawkeye Dam Des Moines County | 30 | 1992 | Low | Not Rated |
| Camp Creek Subwatershed Site M-8 Woodbury County | 27 | 1998 | Low | Not Rated |
| Camp Creek Subwatershed Site M-6a Woodbury County | 38 | 1998 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.