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 851–875 of 1,008
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Standard City Lake Dam Macoupin County | 33 | 1920 | Low | Not Available |
| Stanrick Dam Rock Island County | 32 | 1988 | Low | Not Available |
| Stark Farm Dam DuPage County | 10 | 1992 | Low | Not Available |
| Stark Pond Dam Woodford County | 33 | 1952 | Low | Not Available |
| Staunton Coal Company Reservoir Dam Madison County | 34 | 1958 | Low | Not Available |
| Staunton Country Club Lake Dam Macoupin County | 35 | 1922 | Low | Not Available |
| Staunton Old Mine Refuse Dam Macoupin County | 45 | 1984 | Low | Not Available |
| Staunton Reservoir Dam Macoupin County | 43 | 1926 | Low | Not Available |
| Steel Rock Island County | 11 | 1912 | Low | Not Available |
| Stone Pond Dam Bond County | 31 | 1969 | Low | Not Available |
| St. Peter Sportsman Lake Dam Fayette County | 30 | 1951 | Low | Not Available |
| Streamwood Golf Course Dam Cook County | 8 | 1989 | Low | Not Available |
| Stroyan Lake Dam Lee County | 14 | 1966 | Low | Not Available |
| Stumpy Hill Farm Dam Edwards County | 31 | 1998 | Low | Not Available |
| Sugar Camp/Mine 1/Fresh Water Pond Dam Franklin County | 26 | — | Low | Not Available |
| Sugar Camp/Mine 1/Pond 8 Dam Franklin County | 31 | — | Low | Not Available |
| Suhling Pond Dam Macoupin County | 26 | 1978 | Low | Not Available |
| Sullivan Lake Dam Fulton County | 34 | 1965 | Low | Not Available |
| Sunset Hills Lake Dam Clinton County | 11 | 2007 | Low | Not Available |
| Sunset Lake Dam McLean County | 21 | 1975 | Low | Not Available |
| Sunset Lake Dam Wayne County | 19 | 1970 | Low | Not Available |
| Superior 4 Dam Macoupin County | 20 | 1950 | Low | Not Available |
| Superior Lake Dam Jefferson County | 23 | 1953 | Low | Not Available |
| Sutton Pond Dam Tazewell County | 27 | 1965 | Low | Not Available |
| Swagmeyer Pond Dam Morgan County | 31 | 1977 | Low | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.