Illinois Dams
1,630 dams tracked by the National Inventory of Dams
Total Dams
1,630
High Hazard
251
15.4%
Poor / Unsatisfactory
6
Average Age
61 yrs
Hazard Classification
High251 (15.4%)
Significant360 (22.1%)
Low1,008 (61.8%)
Condition Assessment
Satisfactory8 (0.5%)
Fair6 (0.4%)
Poor / Unsatisfactory6 (0.4%)
Not Rated1,610 (98.8%)
Federal
48
State
68
Local
286
Private
1,153
Tallest Dams
- Refuse Disposal Area175 ft
- Shelbyville Dam138 ft
- Duck Creek Station Dams123 ft
- Devil`s Kitchen Dam121 ft
- Macoupin Energy Refuse Disposal Area 6117 ft
High Hazard Dams
Poor Condition Dams
- Whoopie CatPoor
- Arsenal Power Poor
- Dam A-41Poor
- Lake Chautauqua Upper DamPoor
- Lake Chautauqua Lower DamPoor
All Dams in Illinois
Showing 1–8 of 8
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Visitor Center Dam Williamson County | 26 | 2009 | Low | Satisfactory |
| Upper Sterling Whiteside County | 10 | 1907 | Low | Satisfactory |
| Rockton Winnebago County | 7 | 1929 | Low | Satisfactory |
| Lake Glendale Pope County | 38 | 1938 | Significant | Satisfactory |
| Kankakee Kankakee County | 15 | 1915 | Low | Satisfactory |
| Dixon Lee County | 17 | 1924 | Low | Satisfactory |
| Devil`s Kitchen Dam Williamson County | 121 | 1959 | High | Satisfactory |
| Dayton LaSalle County | 26 | 1925 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.