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 1426–1450 of 1,630
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Churchill Club Subdivision Basin D Dam Kendall County | 7 | 2004 | Low | Not Available |
| Churchill Club Dam Basin B Dam Kendall County | 10 | 2003 | Low | Not Available |
| Christopher Old Reservoir Dam Franklin County | 15 | 1900 | Significant | Not Available |
| Christopher New Reservoir Dam Franklin County | 19 | 1923 | Low | Not Available |
| Choate Lake Dam Union County | 25 | 1907 | High | Not Available |
| Chippewa Estates Dam Peoria County | 32 | 1970 | Low | Not Available |
| Chicago River and Harbor Controlling Works Cook County | 31 | 1938 | High | Not Available |
| Chicago Botanical Gardens South Inlet Dam Cook County | 15 | 1970 | Low | Not Available |
| Cherry Valley Lower Dam Winnebago County | 12 | 1993 | Low | Not Available |
| Chenot Lake Dam St. Clair County | 15 | 1960 | High | Not Available |
| Chautauqua Lake Dam Jackson County | 35 | 1965 | High | Not Available |
| Charter Oak South Lake Dam Peoria County | 33 | 1970 | Low | Not Available |
| Charter Oak North Lake Dam Peoria County | 39 | 1978 | Significant | Not Available |
| Charley Brown Park Lake Dam Clay County | 19 | 1936 | Significant | Not Available |
| Charlevoix Drive Dam Will County | 7 | 2008 | Significant | Not Available |
| Channahon Dam Will County | 25 | 1930 | Low | Not Available |
| Chain Lake Water Control Dam Mason County | 12 | 2001 | Low | Not Available |
| Cervantes Lake Dam Pulaski County | 23 | 1971 | Low | Not Available |
| Century Trace Lake Dam Will County | 11 | 2003 | Low | Not Available |
| Central Illinois Public Service Company Lake Dam Effingham County | 35 | 1930 | Significant | Not Available |
| Central Alexander County Sewage Treatment Pond Dam Alexander County | 7 | 1998 | Low | Not Available |
| Centerville Mens Club Lake Dam Hamilton County | 26 | 1958 | Low | Not Available |
| Cedar Lake Dam Johnson County | 24 | 1973 | Significant | Not Available |
| Cedar Lake Dam Jackson County | 74 | 1974 | High | Not Available |
| Cedar Glen Unit 2 Dam Will County | 11 | 1985 | Low | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.