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 76–100 of 360
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Shoal Creek Structure 2 Dam Montgomery County | 38 | 1963 | Significant | Not Available |
| Shipman Reservoir Dam Macoupin County | 36 | 1967 | Significant | Not Available |
| Sherwood Forest Lake Dam Clark County | 21 | 1954 | Significant | Not Available |
| Sherman Dam Lee County | 25 | 1991 | Significant | Not Available |
| School Street Detention Basin Dam Tazewell County | 12 | 1996 | Significant | Not Available |
| Santa Fe Lake Dam Peoria County | 57 | 1965 | Significant | Not Available |
| Sangamon Valley PWD PCF Dam Champaign County | 18 | — | Significant | Not Available |
| Sandy Run Lake Dam White County | 29 | 1903 | Significant | Not Available |
| Sam Parr Lake Dam Jasper County | 35 | 1970 | Significant | Not Available |
| Sam Dale Lake Dam Wayne County | 22 | 1960 | Significant | Not Available |
| Saganashkee Slough 6 Dam Cook County | 7 | 1948 | Significant | Not Available |
| Saganashkee Slough 1 Dam Cook County | 14 | 1948 | Significant | Not Available |
| Sabic Basins Dam LaSalle County | 10 | 1960 | Significant | Not Available |
| Rustic Acres Lake Dam Henry County | 40 | 1973 | Significant | Not Available |
| Ruppert Pond Dam Montgomery County | — | 1977 | Significant | Not Available |
| Rowe Lake Dam Morgan County | 27 | 1970 | Significant | Not Available |
| Round Lake Dam Lake County | 9 | 1945 | Significant | Not Available |
| Roundhouse Lake Dam Knox County | 35 | 1934 | Significant | Not Available |
| Rogenski Lake Dam Madison County | 7 | — | Significant | Not Available |
| Rocky Run Lake Dam Hancock County | 69 | 1971 | Significant | Not Available |
| Rocky Ford Sportsman Club South Lake Dam Montgomery County | 30 | 1950 | Significant | Not Available |
| Rocky Ford Sportsman Club North Lake Dam Montgomery County | 29 | 1960 | Significant | Not Available |
| Riverview Dam Coles County | 29 | 1989 | Significant | Not Available |
| Refuse Disposal Area Saline County | 175 | — | Significant | Not Available |
| Red Hills Lake Dam Lawrence County | 35 | 1954 | Significant | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.