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 501–525 of 1,008
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Langley Pond Dam Shelby County | 34 | 1968 | Low | Not Available |
| Langford Pond Dam Randolph County | 25 | 1951 | Low | Not Available |
| Lakewood Subdivision Lake 2 Dam Madison County | 29 | 1965 | Low | Not Available |
| Lakewood Subdivision Lake 1 Dam Madison County | 25 | 1965 | Low | Not Available |
| Lake Windsor Dam Knox County | 45 | 1965 | Low | Not Available |
| Lake Windermere Dam Coles County | 28 | 1974 | Low | Not Available |
| Lake Williamson Dam Macoupin County | 39 | 1974 | Low | Not Available |
| Lake Wildwood Haven Dam Fulton County | 44 | 1971 | Low | Not Available |
| Lake Waunetta Dam Edgar County | 24 | 1954 | Low | Not Available |
| Lake Warren Dam Warren County | 38 | 1952 | Low | Not Available |
| Lake Walter Scott Dam Effingham County | 33 | 1967 | Low | Not Available |
| Lakeview Estates Unit 3 Pond 1 Dam Will County | 8 | — | Low | Not Available |
| Lakeview Estates Unit 2 Pond 02 Dam Will County | 10 | 2003 | Low | Not Available |
| Lake Thunderhawk Dam Johnson County | 31 | 1975 | Low | Not Available |
| Lake Taylorville South Fork Sediment Basin Dam Christian County | 17 | 2003 | Low | Not Available |
| Lake Taylorville Locust Creek Detention Basin Dam Christian County | 15 | 2001 | Low | Not Available |
| Lakeshore Hills Lake Dam Adams County | 32 | 1960 | Low | Not Available |
| Lake Shore Drive Pond Dam Peoria County | 35 | 1969 | Low | Not Available |
| Lake Santa Fe Dam Woodford County | 49 | 1976 | Low | Not Available |
| Lake Sandpoint Dam Jasper County | 27 | 1972 | Low | Not Available |
| Lake Ronnie Dam Monroe County | 17 | 1952 | Low | Not Available |
| Lake Roberts Dam Fulton County | 30 | 1963 | Low | Not Available |
| Lake Richard Dam Jersey County | 40 | — | Low | Not Available |
| Lake Piasa Dam Jersey County | 47 | 1963 | Low | Not Available |
| Lake of The Woods 1 Dam Monroe County | 21 | 1974 | Low | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.