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 1326–1350 of 1,630
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Dan Brown Dam Tazewell County | 30 | — | Low | Not Available |
| Dam A-41 Williamson County | 24 | 1965 | Low | Poor |
| Daily Pond Dam Moultrie County | 34 | 1967 | Low | Not Available |
| Curtis Brothers Pond Dam Coles County | 40 | 1967 | Low | Not Available |
| Cummins Pond Dam Greene County | 30 | 1968 | Low | Not Available |
| Crystal Lake Dam St. Clair County | 18 | 1940 | Significant | Not Available |
| Crystal Lake Dam Sangamon County | 18 | 1995 | Low | Not Available |
| Crystal Lake Dam Jersey County | 24 | 1954 | Low | Not Available |
| Croxton Lake Dam Schuyler County | 25 | 1965 | Low | Not Available |
| Crown 3 Mine North Refuse Extension Dam Montgomery County | 35 | 2000 | High | Not Available |
| Crown 3 Mine North Refuse Dam Montgomery County | 34 | 1982 | High | Not Available |
| Crown 3 Mine Fine Refuse Pond Extension Dam Montgomery County | 30 | 1995 | Low | Not Available |
| Crown 3 Mine Fine Refuse Ext 2 Dam Macoupin County | 27 | — | High | Not Available |
| Crown 2 Mine Coarse Refuse Exterior Dam Macoupin County | 21 | 2001 | Low | Not Available |
| Crown 2 Mine Coarse Refuse Dam Macoupin County | 43 | 1988 | Low | Not Available |
| Crown 1 Mine Pond Dam Montgomery County | 11 | 1951 | Significant | Not Available |
| Cross Lake Dam McLean County | 31 | 1962 | Low | Not Available |
| Crossings Bike Path Dam Will County | 10 | — | Low | Not Available |
| Cricketwood Green Lake Dam McDonough County | 25 | 1965 | Low | Not Available |
| Crescent Lake Dam Henry County | 31 | 1900 | Significant | Not Available |
| Crescent Club Lake Dam Randolph County | 17 | 1964 | Low | Not Available |
| Crane Lake Water Control Dam Mason County | 10 | — | Low | Not Available |
| Craig Pond Dam 1 Macoupin County | 26 | 1977 | Low | Not Available |
| Craig Lake Dam Jersey County | 52 | 1960 | Low | Not Available |
| Craig Lake Dam Clark County | 22 | 1956 | Low | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.