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 126–150 of 274
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Lake Anita Dam Cass County | 53 | 1970 | Significant | Satisfactory |
| Lake Belva Deer Dam Keokuk County | 55 | 2001 | Significant | Satisfactory |
| Lake Colchester Dam Warren County | 31 | 1965 | Significant | Satisfactory |
| Lake Darling Dam Washington County | 47 | 1950 | Significant | Satisfactory |
| Lake Delhi Dam Delaware County | 55 | 1922 | Significant | Satisfactory |
| Lake Ellis Dam Lucas County | 38 | 1993 | Significant | Fair |
| Lake Fisher Dam Davis County | 43 | 1937 | Significant | Satisfactory |
| Lake Halice Dam Polk County | 27 | 1961 | Significant | Satisfactory |
| Lake Hendricks Dam Howard County | 30 | 1960 | Significant | Poor |
| Lake Homestead Dam Jackson County | 36 | 1978 | Significant | Satisfactory |
| Lake Huntington Scott County | 35 | 1971 | Significant | Fair |
| Lake Icaria Dam (Site M-1-A Walters Cr) Adams County | 56 | 1974 | Significant | Satisfactory |
| Lake Iowa Dam Iowa County | 40 | 1962 | Significant | Fair |
| Lake Keomah Dam Mahaska County | 42 | 1935 | Significant | Satisfactory |
| Lake Lashane Dam Decatur County | 30 | 1954 | Significant | Satisfactory |
| Lake Macbride Dam Johnson County | 56 | 1930 | Significant | Satisfactory |
| Lake Meyer Dam Winneshiek County | 46 | 1966 | Significant | Fair |
| Lake Miami Dam Monroe County | 32 | 1966 | Significant | Satisfactory |
| Lake Morris Dam Lucas County | 39 | 1993 | Significant | Fair |
| Lake of Three Fires Dam Taylor County | 32 | 1967 | Significant | Satisfactory |
| Lake Ohana Dam #1 Mills County | 46 | 2007 | Significant | Poor |
| Lake Pahoja Dam Lyon County | 50 | 1974 | Significant | Satisfactory |
| Lake Panorama Dam Guthrie County | 70 | 1969 | Significant | Satisfactory |
| Lakeside Development Dam Linn County | 45 | 2005 | Significant | Satisfactory |
| Lake Smith Dam Kossuth County | 21 | 1965 | Significant | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.