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 26–50 of 251
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Busse Woods Reservoir South Dam Cook County | 23 | 1977 | High | Not Available |
| Candlewick Lake Dam Boone County | 39 | 1974 | High | Not Available |
| Canton City Lake Dam Fulton County | 57 | 1939 | High | Not Available |
| Carbondale Reservoir Dam Jackson County | 33 | 1926 | High | Not Available |
| Carlyle Dam Clinton County | 68 | 1966 | High | Not Available |
| Castle Ridge Lake Dam Madison County | 42 | 2002 | High | Not Available |
| Cedar Lake Dam Jackson County | 74 | 1974 | High | Not Available |
| Chautauqua Lake Dam Jackson County | 35 | 1965 | High | Not Available |
| Chenot Lake Dam St. Clair County | 15 | 1960 | High | Not Available |
| Chicago River and Harbor Controlling Works Cook County | 31 | 1938 | High | Not Available |
| Choate Lake Dam Union County | 25 | 1907 | High | Not Available |
| Clearwater Pond Dam Bureau County | 45 | 1967 | High | Not Available |
| Clinton Power Station/Clinton Lake Dam De Witt County | 65 | 1977 | High | Not Available |
| Coal and Crane Creek Structure 12 Schuyler County | 43 | 1971 | High | Not Available |
| Coal and Crane Creek Structure 8 Schuyler County | 43 | 1971 | High | Not Available |
| Coal & Crane Creek Structure 5 Schuyler County | 47 | 1975 | High | Not Available |
| Coffeen Gmf Gypsum Stack Dam Montgomery County | 108 | — | High | Not Available |
| Columbia Lakes South Lake Dam Monroe County | 25 | 1990 | High | Not Available |
| Consol/Rend Lake Mine/Slurry Cell 2 Dam Jefferson County | 100 | 1998 | High | Not Available |
| Consol/Rend Lake Mine/Slurry Impoundment 1 Jefferson County | 75 | 1993 | High | Not Available |
| Coopers Farm Sediment Storage Dam Lake County | 13 | — | High | Not Available |
| Cornell Avenue Dam Cook County | 9 | 1977 | High | Not Available |
| Cortland Water Reclamation Facility Cell 3 Dam DeKalb County | 17 | 2008 | High | Not Available |
| Cortland Water Reclamation Facility Cell 4 Dam DeKalb County | 17 | 2008 | High | Not Available |
| Coulterville Coal/Gateway Mine/Slurry Cell 3 Dam Randolph County | 41 | 1990 | High | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.