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 3051–3075 of 3,759
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Davis Subwatershed 7-1580 Woodbury County | 36 | 1958 | Low | Not Rated |
| Davis Subwatershed 5-1620 Woodbury County | 34 | 1958 | Low | Not Rated |
| Davis Subwatershed 19-2044 Woodbury County | 52 | 1958 | Low | Not Rated |
| Davison Dam Guthrie County | 27 | 1965 | Low | Not Rated |
| Davis Dam Monroe County | 26 | 1997 | Low | Not Rated |
| Davis Dam Monroe County | 30 | 2004 | Low | Not Rated |
| Davis Dam Audubon County | 28 | 1966 | Low | Not Rated |
| Davis Dam Madison County | 25 | 1965 | Low | Not Rated |
| Davis-Battle Cr. Watershed Site H-4-4 Monona County | 51 | 1966 | Low | Not Rated |
| Davis-Battle Cr. Watershed Site H-4-2 Monona County | 47 | 1966 | Low | Not Rated |
| Davis-Battle Cr. Watershed Site H-4-1 Monona County | 52 | 1963 | Low | Not Rated |
| Davis-Battle Cr. Watershed Site H-3 Monona County | 42 | 1966 | Low | Not Rated |
| Davis-Battle Cr. Watershed Site H-1 Monona County | 38 | 1966 | Low | Not Rated |
| Davis-Battle Cr. Watershed Site G-2 Monona County | 27 | 1966 | Low | Not Rated |
| Davis-Battle Cr. Watershed Site G-1 Monona County | 40 | 1966 | Low | Not Rated |
| Davis-Battle Cr. Watershed Site F-1 Monona County | 27 | 1969 | Low | Not Rated |
| Davis-Battle Cr. Watershed Site E-1 Monona County | 58 | 1969 | Low | Not Rated |
| Davis-Battle Cr. Watershed Site D-7 Monona County | 35 | 1963 | Low | Not Rated |
| Davis-Battle Cr. Watershed Site D-3 Monona County | 46 | 1963 | Low | Not Rated |
| Davis-Battle Cr. Watershed Site D-1 Monona County | 43 | 1963 | Low | Not Rated |
| Davis-Battle Cr. Watershed Site C-12-2 Monona County | 39 | 1964 | Low | Not Rated |
| Davis-Battle Cr. Watershed Site C-12-1 Monona County | 60 | 1964 | Low | Not Rated |
| Davids Creek Watershed Site 9-3 Audubon County | 33 | 1977 | Low | Not Rated |
| Davids Creek Watershed Site 9-2 Audubon County | 34 | 1963 | Low | Not Rated |
| Davids Creek Watershed Site 7-6 Audubon County | 38 | 1968 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.