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 151–175 of 360
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Lake Benton Dam Franklin County | 22 | 1939 | Significant | Not Available |
| Lake Bloomington Dam McLean County | 51 | 1930 | Significant | Not Available |
| Lake Bracken Dam Knox County | 47 | 1922 | Significant | Not Available |
| Lake Camp A Lot Dam Randolph County | 15 | 1930 | Significant | Not Available |
| Lake Centralia Dam Marion County | 31 | 1911 | Significant | Not Available |
| Lake Charleston Dam Coles County | 29 | 1981 | Significant | Not Available |
| Lake Como Dam Johnson County | 41 | 1966 | Significant | Not Available |
| Lake Duquoin Dam Perry County | 18 | 1937 | Significant | Not Available |
| Lake Ellyn Dam DuPage County | 12 | 1991 | Significant | Not Available |
| Lake Glendale Pope County | 38 | 1938 | Significant | Satisfactory |
| Lake Glenn Shoals Dam Montgomery County | 56 | 1978 | Significant | Not Available |
| Lake Hamilton Dam Franklin County | 13 | 1912 | Significant | Not Available |
| Lake Heights Dam Madison County | 27 | 1944 | Significant | Not Available |
| Lake Hillcrest Dam Madison County | 40 | 1956 | Significant | Not Available |
| Lake Hillsboro Dam Montgomery County | 34 | 1917 | Significant | Not Available |
| Lake In The Hills 2 Dam McHenry County | 15 | 1947 | Significant | Not Available |
| Lake Jacksonville Dam Morgan County | 54 | 1939 | Significant | Not Available |
| Lake Jaycee Dam Jefferson County | 30 | 1905 | Significant | Not Available |
| Lake Kadijah Dam DuPage County | 15 | 1924 | Significant | Not Available |
| Lake Ka-Ho 2 Dam Macoupin County | 36 | 1955 | Significant | Not Available |
| Lake Law Dam DuPage County | 20 | 1971 | Significant | Not Available |
| Lake Le-Aqua-Na Dam Stephenson County | 44 | 1955 | Significant | Not Available |
| Lake Mattoon Dam Shelby County | 46 | 1957 | Significant | Not Available |
| Lake Mingo Dam Vermilion County | 47 | 1981 | Significant | Not Available |
| Lake Moses Dam Franklin County | 10 | 1918 | Significant | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.