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 1001–1025 of 4,124
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Soap Creek Watershed Site 26-67 Davis County | 25 | 2000 | Low | Not Rated |
| Soap Creek Watershed Site 26-66 Davis County | 28 | 1994 | Low | Not Rated |
| Soap Creek Watershed Site 26-65 Davis County | 34 | 1994 | Low | Not Rated |
| Soap Creek Watershed Site 26-64 Davis County | 28 | 2004 | Low | Not Rated |
| Soap Creek Watershed Site 26-63 Davis County | 37 | 2004 | Low | Not Rated |
| Soap Creek Watershed Site 26-58 Davis County | 34 | 2007 | Low | Not Rated |
| Soap Creek Watershed Site 26-55 Davis County | 40 | 2007 | Low | Not Rated |
| Soap Creek Watershed Site 26-53 Davis County | 31 | 2011 | Low | Not Rated |
| Soap Creek Watershed Site 26-52 Davis County | 28 | 2011 | Low | Not Rated |
| Soap Creek Watershed Site 26-51c Davis County | 34 | 2002 | Low | Not Rated |
| Soap Creek Watershed Site 26-51b Davis County | 34 | 2002 | Low | Not Rated |
| Soap Creek Watershed Site 26-49 Davis County | 28 | 2000 | Low | Not Rated |
| Soap Creek Watershed Site 26-44 Davis County | 45 | 2003 | Low | Not Rated |
| Soap Creek Watershed Site 26-39 Davis County | 33 | 1995 | Low | Not Rated |
| Soap Creek Watershed Site 26-38 Davis County | 37 | 2003 | Low | Not Rated |
| Soap Creek Watershed Site 26-37b Davis County | 7 | 1997 | Low | Not Rated |
| Soap Creek Watershed Site 26-37a Davis County | 16 | 1997 | Low | Not Rated |
| Soap Creek Watershed Site 26-36 Davis County | 26 | 1997 | Low | Not Rated |
| Soap Creek Watershed Site 26-34 Davis County | 24 | 1997 | Low | Not Rated |
| Soap Creek Watershed Site 26-32 Davis County | 27 | 1995 | Low | Not Rated |
| Soap Creek Watershed Site 26-127 Davis County | 37 | 2009 | Low | Not Rated |
| Snyder Dam Van Buren County | 27 | 2004 | Low | Not Rated |
| Snook Dam Jasper County | 30 | 1960 | Low | Not Rated |
| Snakenburg Dam Jefferson County | 32 | 1985 | Low | Not Rated |
| Smothers Dam Iowa County | 37 | 1978 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.