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 1–25 of 251
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Absher Lake Dam White County | 15 | 1968 | High | Not Available |
| Airstrip Reservoir Dam Jersey County | 55 | 1957 | High | Not Available |
| Allen Lake Dam Crawford County | 21 | 1966 | High | Not Available |
| Alpine Dam Winnebago County | 48 | 1942 | High | Not Available |
| Alton-Wood River Sportsmens Reservoir Dam Madison County | 33 | 1948 | High | Not Available |
| Alto Pass Reservoir Dam Union County | 45 | 1964 | High | Not Available |
| American Coal/Galatia/Bunkhouse Rdf Dam Saline County | 110 | — | High | Not Available |
| Apple Canyon Lake Dam Jo Daviess County | 78 | 1978 | High | Not Available |
| Arclar/Willow Lake/Refuse Area 2 Dam Saline County | 108 | — | High | Not Available |
| Arentsen Pond Dam Hamilton County | 75 | 1992 | High | Not Available |
| Armstrong Park Flood Control Reservoir Dam DuPage County | 22 | — | High | Not Available |
| Arrow Wood Lake Dam Madison County | 15 | 2000 | High | Not Available |
| Baker Hill Detention Basin Dam DuPage County | 23 | 1999 | High | Not Available |
| Baldwin Plant Cooling Lake Dam Randolph County | 55 | 1968 | High | Not Available |
| Baldwin Plant Cooling Lake Dikes St. Clair County | 55 | 1968 | High | Not Available |
| Beaver Glenn Lake Dam Bureau County | 24 | 1973 | High | Not Available |
| Bethany Road Detention Pond Dam DeKalb County | 11 | — | High | Not Available |
| Blandinsville City Reservoir Dam McDonough County | 20 | 1940 | High | Not Available |
| Braidwood Station Cooling Pond Dam Will County | 22 | 1979 | High | Not Available |
| Brandon Kimbro Dam Sangamon County | — | 2016 | High | Not Available |
| Brandon Road Lock and Dam Will County | 45 | 1933 | High | Not Available |
| Brentwood Townehome Dam Cook County | 14 | 1960 | High | Not Available |
| Brighton Lake Dam Macoupin County | 25 | — | High | Not Available |
| Briney Lake 1 Dam Schuyler County | 36 | 1971 | High | Not Available |
| Buffalo Creek Dam Lake County | 27 | 1983 | High | Not Available |
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.