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 526–550 of 1,630
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Gw60 Dam DuPage County | 14 | — | Low | Not Available |
| Habbes Lake Dam Washington County | 19 | 1974 | Low | Not Available |
| Hadden Pond Dam Morgan County | 29 | 1961 | Low | Not Available |
| Hadley Creek 2 Lake Dam Adams County | 33 | 1959 | Low | Not Available |
| Hadley Creek WS Str 1-7 Adams County | 25 | 1958 | Low | Not Available |
| Hadley Creek WS Str 29-6 Pike County | 31 | 1958 | Low | Not Available |
| Hadley Creek WS Str 9-1 Adams County | 26 | 1958 | Low | Not Available |
| Hagen Slurry Impoundment Dams Fulton County | 30 | 1983 | Low | Not Available |
| Hahn Lake Dam Richland County | 32 | 1947 | Low | Not Available |
| Hambaugh-Martin 1 Dam Brown County | 41 | 1961 | Low | Not Available |
| Hambaugh-Martin 2 Dam Brown County | 21 | 1959 | Significant | Not Available |
| Hambaugh-Martin 3 Dam Brown County | 37 | 1959 | Low | Not Available |
| Hambaugh-Martin 5 Dam Brown County | 23 | 1960 | Low | Not Available |
| Hambaugh-Martin 6 Dam Brown County | 25 | 1959 | Low | Not Available |
| Hambaugh- Martin WS Str 4 Brown County | 26 | 1961 | Low | Not Available |
| Hambaugh- Martin WS Str 7 Brown County | 27 | 1961 | Low | Not Available |
| Hambaugh- Martin WS Str 8 Brown County | 31 | 1961 | Low | Not Available |
| Hamilton County Coal/Hamilton County/Coal Refuse 1 Dam Hamilton County | 50 | — | Low | Not Available |
| Hamilton County Coal/Hamilton County/Coal Refuse 2 Dam Hamilton County | 76 | 2016 | High | Not Available |
| Happy Hollow Lake 2 Dam Knox County | 34 | 1965 | Significant | Not Available |
| Happy Hollow Lake Dam Knox County | 52 | 1940 | Significant | Not Available |
| Hardiman Pond Dam Fayette County | 25 | 1977 | Low | Not Available |
| Harmon Pond Dam Bureau County | 37 | 1974 | Significant | Not Available |
| Harold Redfern Pond Dam Macoupin County | 26 | 1978 | Low | Not Available |
| Harrell Lake North Dam Adams County | 22 | 1965 | Low | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.