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 276–300 of 360
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Fyre Lake Dam Mercer County | 53 | 1972 | Significant | Not Available |
| Fresh Water Lake Saline County | 26 | — | Significant | Not Available |
| Fresh Water Lake Macoupin County | 28 | — | Significant | Not Available |
| French Pond Dam Whiteside County | 23 | 1965 | Significant | Not Available |
| Freeman United/ /Fresh Water Lake Dam Williamson County | 30 | 1964 | Significant | Not Available |
| Freeman/ /East Lake Dam Jefferson County | 23 | 1961 | Significant | Not Available |
| Frankfort Flow Equalization Pond Dam Will County | 12 | — | Significant | Not Available |
| Finn's Lake Dam Monroe County | 23 | — | Significant | Not Available |
| Far Oaks Lake Dam St. Clair County | 26 | 1901 | Significant | Not Available |
| Eureka Lake Dam Woodford County | 33 | 1942 | Significant | Not Available |
| Ettlebrick Lake Dam Cumberland County | 19 | 1900 | Significant | Not Available |
| Elliot Golf Course Dam Winnebago County | 11 | 1970 | Significant | Not Available |
| Elim Springs Park Lake 4 Dam Moultrie County | 32 | 1964 | Significant | Not Available |
| Eldorado Reservoir Dam Saline County | 20 | 1920 | Significant | Not Available |
| Edwards Lake Dam Henry County | 34 | 1974 | Significant | Not Available |
| Eads Lake Dam Edgar County | 15 | 1956 | Significant | Not Available |
| Dynegy/Havana Sta/South Ash Pond Dam Mason County | — | — | Significant | Not Available |
| Duck Creek Bottom Ash Pond Dam Fulton County | 10 | — | Significant | Not Available |
| Duck Creek Ash Pond 1 Dam Fulton County | 28 | — | Significant | Not Available |
| Drost Park Lake Dam Madison County | 15 | 1900 | Significant | Not Available |
| Dresden Island Lock and Dam Grundy County | 33 | 1933 | Significant | Not Available |
| Deer Park Lake Dam LaSalle County | 55 | 1910 | Significant | Not Available |
| Deep Lake Dam Peoria County | 47 | — | Significant | Not Available |
| Crystal Lake Dam St. Clair County | 18 | 1940 | Significant | Not Available |
| Crown 1 Mine Pond Dam Montgomery County | 11 | 1951 | Significant | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.