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 3001–3025 of 4,124
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| 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 Dallas County | 29 | — | Low | Not Rated |
| Findley Dam Guthrie County | 26 | 1989 | Low | Not Rated |
| Finch Dam Marion County | 26 | 1989 | Low | Not Rated |
| Fieldstone Addition Dam Black Hawk County | 19 | 1998 | High | Satisfactory |
| Fichter Dam Montgomery County | 35 | 1997 | Low | Not Rated |
| Fetters Dam Wayne County | 25 | 1993 | Low | Not Rated |
| Fertile Mill Dam Worth County | 11 | 1929 | Low | Not Rated |
| Ferguson Dam Polk County | 25 | 1967 | Low | Not Rated |
| Fenchel Dam Linn County | 26 | 1970 | Low | Not Rated |
| Felton Dam Warren County | 22 | 1966 | Low | Not Rated |
| Fellowship Lake Dam Tama County | 40 | 1940 | Low | Satisfactory |
| Fehseke Dam Lee County | 44 | 1999 | Low | Not Rated |
| Fee Subwatershed Sta 05+00 Main Gully Cherokee County | 32 | 1954 | Low | Not Rated |
| Fee Subwatershd Sta 31+62.5 Main Gully Cherokee County | 27 | 1954 | Low | Not Rated |
| Fatchett Wetland Dam Clinton County | 11 | 1998 | Low | Not Rated |
| Farmer Dam Henry County | 23 | 1994 | Low | Not Rated |
| Farm Dam Decatur County | 30 | 1987 | Low | Not Rated |
| Farm Creek Public Wildlife Area Dam Pottawattamie County | 37 | 2001 | Low | Not Rated |
| Faris Dam Ringgold County | 24 | 1978 | Low | Not Rated |
| Fairgrounds Dam Taylor County | 16 | 1980 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.