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 901–925 of 1,630
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Lake Chautauqua Upper Dam Mason County | 21 | 1916 | Low | Poor |
| Lake Chautauqua Lower Dam Fulton County | 20 | 1920 | Low | Poor |
| Lake Charleston Dam Coles County | 29 | 1981 | Significant | Not Available |
| Lake Charles Dam Lake County | 9 | 1962 | High | Not Available |
| Lake Centralia Dam Marion County | 31 | 1911 | Significant | Not Available |
| Lake Catatoga Dam Macoupin County | 52 | 1972 | Low | Not Available |
| Lake Carroll Sedimentation Pond 3 Dam Carroll County | 23 | 1989 | Low | Not Available |
| Lake Carroll Sedimentation Pond 2 Dam Carroll County | 14 | 1988 | Low | Not Available |
| Lake Carroll Sedimentation Disposal Dam 5 Carroll County | 21 | 1992 | Low | Not Available |
| Lake Carlton Dam Whiteside County | 41 | 1969 | High | Not Available |
| Lake Carlinville Dam Macoupin County | 34 | 1938 | Low | Not Available |
| Lake Camp A Lot Dam Randolph County | 15 | 1930 | Significant | Not Available |
| Lake Camelot Dam Peoria County | 56 | 1970 | High | Not Available |
| Lake Bracken Dam Knox County | 47 | 1922 | Significant | Not Available |
| Lake Bloomington Dam McLean County | 51 | 1930 | Significant | Not Available |
| Lake Benton Dam Franklin County | 22 | 1939 | Significant | Not Available |
| Lake Avon Country Club Reservoir Dam Fulton County | 23 | 1957 | Low | Not Available |
| Lake Arispie Dam Bureau County | 14 | 1966 | Significant | Not Available |
| Lake Amy Dam Lake County | 18 | 1969 | Low | Not Available |
| Laharpe Reservoir Dam Hancock County | 15 | 1949 | Significant | Not Available |
| LaGrange Lock and Dam Brown County | 21 | 1939 | Significant | Not Available |
| Lagg Lake 2 Jefferson County | 32 | 1976 | Low | Not Available |
| Lagg Lake 1 Dam Jefferson County | 18 | 1976 | Low | Not Available |
| Labuy Lake Dam Cook County | 7 | — | Low | Not Available |
| Kress Creek Regional Flood Control Dam DuPage County | 15 | 2006 | Low | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.