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 1301–1325 of 1,630
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Deushane Slurry Impoundment 3 Dam Knox County | 46 | — | Low | Not Available |
| Deushane Slurry Impoundment 2 Dam Knox County | 45 | 1983 | Low | Not Available |
| Deushane Slurry Impoundment 1 Dam Knox County | 28 | 1983 | Low | Not Available |
| Dennys Pond Dam Union County | 25 | 1966 | Low | Not Available |
| Dennis Russell Dam Knox County | 10 | 1970 | Low | Not Available |
| Dennis Lake Dam Tazewell County | 32 | 1970 | Low | Not Available |
| Denbys Pond Dam Macoupin County | 38 | 1974 | Low | Not Available |
| Denby Dam 1 Sangamon County | 25 | 1976 | Low | Not Available |
| Dellitt Lake Dam Mercer County | 31 | 1975 | Low | Not Available |
| Defrates-Shaeffer Lake Dam Morgan County | 26 | 1976 | Low | Not Available |
| Deer Run Pond K Dam Will County | 11 | 2002 | Low | Not Available |
| Deer Run Lake Dam Macoupin County | 32 | 1971 | Low | Not Available |
| Deer Run Dam Schuyler County | 29 | 2002 | Low | Not Available |
| Deer Ridge Dam McDonough County | 67 | 2000 | Low | Not Available |
| Deer Park Lake Dam LaSalle County | 55 | 1910 | Significant | Not Available |
| Deer Lake Dam Will County | 15 | 1920 | Low | Not Available |
| Deer Lake Dam Jackson County | 10 | 1985 | High | Not Available |
| Deep Lake Dam Peoria County | 47 | — | Significant | Not Available |
| Dayton Estates Dam LaSalle County | 15 | 1965 | High | Not Available |
| Dayton LaSalle County | 26 | 1925 | Low | Satisfactory |
| Davis Lake Dam St. Clair County | 37 | 1940 | High | Not Available |
| Daum Lake Dam Knox County | 30 | 1965 | Low | Not Available |
| Darwish Dam Peoria County | 40 | — | Low | Not Available |
| Darst Pond Dam Fulton County | 33 | 1955 | Low | Not Available |
| Dann Kraatz Dam Alexander County | 20 | 2010 | High | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.