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 301–325 of 3,759
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Big Wyacondah Watershed Site 27-P Davis County | 23 | 1963 | Low | Not Rated |
| Big Wyacondah Watershed Site 28 Davis County | 29 | 1976 | Low | Not Rated |
| Big Wyacondah Watershed Site 32-1 Davis County | 16 | 1966 | Low | Not Rated |
| Big Wyacondah Watershed Site 32-3 Davis County | 19 | 1966 | Low | Not Rated |
| Big Wyacondah Watershed Site 35 Davis County | 17 | 1966 | Low | Not Rated |
| Big Wyacondah Watershed Site 38-3 Davis County | 18 | 1976 | Low | Not Rated |
| Big Wyacondah Watershed Site 38-A Davis County | 27 | 1971 | Low | Not Rated |
| Big Wyacondah Watershed Site 42 Davis County | 25 | 1964 | Low | Not Rated |
| Big Wyacondah Watershed Site 43 Davis County | 15 | 1966 | Low | Not Rated |
| Big Wyacondah Watershed Site 44 Davis County | 16 | 1966 | Low | Not Rated |
| Big Wyacondah Watershed Site 45 Davis County | 21 | 1964 | Low | Not Rated |
| Big Wyacondah Watershed Site 47 Davis County | 21 | 1964 | Low | Not Rated |
| Big Wyacondah Watershed Site 7 Davis County | 28 | 1976 | Low | Not Rated |
| Bingaman Dam Marion County | 26 | 1967 | Low | Not Rated |
| Bingaman Dam Adair County | 28 | 1992 | Low | Not Rated |
| Bingham Dam Pottawattamie County | 23 | 1961 | Low | Not Rated |
| Binning Dam Decatur County | 31 | 2002 | Low | Not Rated |
| Bishop/Barrows Dam Madison County | 38 | 1972 | Low | Not Rated |
| Bishop Dam Jefferson County | 22 | 1988 | Low | Not Rated |
| Bitter Creek Subwatershed Site 1-1 Ida County | 40 | 1978 | Low | Not Rated |
| Bitter Creek Subwatershed Site 3-1 Ida County | 42 | 1978 | Low | Not Rated |
| Bitter Creek Subwatershed Site E-1 Ida County | 38 | 1995 | Low | Not Rated |
| Bitter Creek Subwatershed Site E-2 Woodbury County | 34 | 1996 | Low | Not Rated |
| Bitter Creek Subwatershed Site E6-1 Ida County | 34 | 1995 | Low | Not Rated |
| Bitting / Carlson Dam Page County | 23 | 2004 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.