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 426–450 of 1,630
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Rinco Instrument Corporation Lake Dam Bond County | 34 | 1968 | Low | Not Available |
| Rinaker Lake Dam Macoupin County | 23 | 1900 | Low | Not Available |
| Ridgeway Lake Dam Crawford County | 21 | 1964 | Low | Not Available |
| Rickmeyer Small Lake Dam McDonough County | 30 | 1983 | Low | Not Available |
| Rickmeyer Big Lake Dam McDonough County | 16 | 1981 | Low | Not Available |
| Richton Crossing Dam Cook County | 16 | 1976 | High | Not Available |
| Rich Lake Dam Woodford County | 21 | 1952 | Low | Not Available |
| Rice Lake SFWA/Voorhees Unit Water Control Dam Fulton County | 7 | — | Low | Not Available |
| Rice Lake SFWA/Goose Lake Water Control Dam Fulton County | 8 | — | Low | Not Available |
| Rice Lake Dam DuPage County | 13 | 1991 | High | Not Available |
| Retzer Pond Dam Morgan County | 26 | 1969 | Low | Not Available |
| Reservoir 54 Dam DuPage County | 9 | 2002 | Low | Not Available |
| Renee Lake Dam Mercer County | 32 | 1973 | Low | Not Available |
| Renee Drive Detention Dam Kane County | 7 | 2011 | High | Not Available |
| Rend Dam Franklin County | 54 | 1971 | High | Not Available |
| Remington Lakes Dam Will County | 9 | — | Low | Not Available |
| Refuse Disposal Area Saline County | 175 | — | Significant | Not Available |
| Reece Pond Dam Fayette County | 21 | 1940 | Low | Not Available |
| Red Hills Lake Dam Lawrence County | 35 | 1954 | Significant | Not Available |
| Red Hawk Dam Perry County | 16 | 1930 | Low | Not Available |
| Rayburn Lake Dam Madison County | 27 | 1968 | Significant | Not Available |
| Raw Water Reservoir Dam Jefferson County | 20 | 1966 | Significant | Not Available |
| Rawlings Pond Dam Morgan County | 26 | 1969 | Low | Not Available |
| Ravenwood Lake Dam St. Clair County | 15 | 1990 | Significant | Not Available |
| Ravenel Lake Dam St. Clair County | 14 | 2003 | High | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.