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 2726–2750 of 3,759
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Fort Atkinson Milldam Winneshiek County | 11 | 1914 | Low | Not Rated |
| Forsythe Dam Davis County | 27 | 1998 | Low | Not Rated |
| Forinash & Lundberg Dam Warren County | 34 | 1975 | Low | Not Rated |
| Forest Lake Camp Dam Wapello County | 31 | 1953 | Low | Not Rated |
| Foreman Dam Jefferson County | 22 | 2000 | Low | Not Rated |
| Ford Dam Warren County | 30 | 1968 | Low | Not Rated |
| Fontana Milldam Buchanan County | 14 | 1962 | Low | Not Rated |
| Folkerts Dam Lyon County | 35 | 1989 | Low | Not Rated |
| Foix Dam Woodbury County | 40 | 1992 | Low | Not Rated |
| Fogelman Dam Clay County | 29 | 1981 | Low | Not Rated |
| Flynn/Sheetz Dam Washington County | 28 | 1964 | Low | Not Rated |
| Fluitt Dam Lyon County | 32 | 1969 | Low | Not Rated |
| Fleming Ii Dam Tama County | 28 | 2021 | Low | Not Rated |
| Fleming Dam Benton County | 17 | 1972 | Low | Not Rated |
| Fitzmorris Dam Des Moines County | 34 | 1980 | Low | Not Rated |
| Fisher Dam Clarke County | 23 | 1989 | Low | Not Rated |
| Fisher Dam Montgomery County | 33 | 2024 | Low | Not Rated |
| Fish Dam Benton County | 26 | 1969 | Low | Not Rated |
| Finucan Dam Webster County | 33 | 2003 | Low | Not Rated |
| Fine Dam Taylor County | 36 | 1990 | Low | Not Rated |
| Findley Dam Guthrie County | 26 | 1989 | Low | Not Rated |
| Findley Dam Dallas County | 29 | — | Low | Not Rated |
| Finch Dam Marion County | 26 | 1989 | Low | Not Rated |
| Fichter Dam Montgomery County | 35 | 1997 | Low | Not Rated |
| Fetters Dam Wayne County | 25 | 1993 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.