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 1001–1025 of 1,630
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Ill. Laborers and Contractors Dam Brown County | 35 | 1977 | Low | Not Available |
| Illinois Power Company Lake Dam Vermilion County | 80 | 1954 | Low | Not Available |
| Illinois Coal Recovery/Old Ed/Slurry Cell 6 Dam Franklin County | 30 | — | Low | Not Available |
| Illinois Coal Recovery/Mine 21/Reservoir Dam Franklin County | 21 | 1960 | Significant | Not Available |
| Illinois Central Reservoir Dam Jefferson County | 15 | 1926 | Significant | Not Available |
| Illinois Central Railroad Reservoir Dam Washington County | 24 | 1930 | Significant | Not Available |
| Ill Coal Recovery/Old Ed Mine 21/Slurry Cell 4 Dam Franklin County | 47 | 1986 | Low | Not Available |
| Ill Coal Recovery/Old Ed Mine 21/Slurry Cell 3 Dam Franklin County | 25 | 1984 | Low | Not Available |
| Ill Coal Recovery/Old Ed Mine 21/Slurry Cell 2 Dam Franklin County | 23 | 1984 | Low | Not Available |
| H. Wilkins Irrigation Dam Warren County | 24 | 1958 | Low | Not Available |
| Hutsonville Fly Ash Pond D Dam Crawford County | 12 | 1969 | Significant | Not Available |
| Hutsonville Fly Ash Pond Dam Crawford County | 20 | 1987 | Low | Not Available |
| Huntington Pointe Dam Peoria County | 34 | 1993 | Low | Not Available |
| Hunter Pond Dam 1 Sangamon County | 27 | 1977 | Low | Not Available |
| Humm Lake Dam Hardin County | 17 | 1966 | Low | Not Available |
| Hughes Pond Dam 1 Montgomery County | 28 | 1974 | Low | Not Available |
| Huegelys Lake Dam Washington County | 15 | 1965 | Low | Not Available |
| Horton Lake Dam Hancock County | 50 | 1967 | High | Not Available |
| Horseshoe Lake Dam Alexander County | 10 | 1950 | Low | Not Available |
| Horner Park Dam St. Clair County | 27 | — | Low | Not Available |
| Hooper Lake Dam Jersey County | 31 | 1954 | Low | Not Available |
| Homer Lake Dam Champaign County | 31 | 1969 | Low | Not Available |
| Home Lake Dam Tazewell County | 36 | 1968 | Low | Not Available |
| Holy Family Villa Lake Dam Cook County | 12 | 1927 | Low | Not Available |
| Hollis Park Dam Peoria County | 51 | 1982 | High | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.