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 51–75 of 251
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Country Commons Park Basin Dam DuPage County | 8 | 2004 | High | Not Available |
| Countryside Lake Dam Lake County | 9 | 1928 | High | Not Available |
| Crab Orchard Dam Williamson County | 65 | 1939 | High | Fair |
| Crown 3 Mine Fine Refuse Ext 2 Dam Macoupin County | 27 | — | High | Not Available |
| Crown 3 Mine North Refuse Dam Montgomery County | 34 | 1982 | High | Not Available |
| Crown 3 Mine North Refuse Extension Dam Montgomery County | 35 | 2000 | High | Not Available |
| Dann Kraatz Dam Alexander County | 20 | 2010 | High | Not Available |
| Davis Lake Dam St. Clair County | 37 | 1940 | High | Not Available |
| Dayton Estates Dam LaSalle County | 15 | 1965 | High | Not Available |
| Deer Lake Dam Jackson County | 10 | 1985 | High | Not Available |
| Devil`s Kitchen Dam Williamson County | 121 | 1959 | High | Satisfactory |
| Diepholz Pond Dam Cumberland County | 20 | 1960 | High | Not Available |
| Dolan Lake Dam Hamilton County | 30 | 1962 | High | Not Available |
| Dongola Lake Dam Union County | 34 | 1970 | High | Not Available |
| Doyle Lake Dam Adams County | 62 | 1994 | High | Not Available |
| Drake Lake Dam Cass County | 44 | 2003 | High | Not Available |
| Dresden Cooling Lake Dam Grundy County | 25 | 1971 | High | Not Available |
| Duck Creek Station Dams Fulton County | 123 | 1975 | High | Not Available |
| Dunlap Lake Dam Madison County | 45 | 1941 | High | Not Available |
| Dynegy/Havana Sta/East Ash Pond Dam Mason County | 36 | — | High | Not Available |
| Dynegy/Havana Sta/East Ash Pond System Mason County | 38 | 1999 | High | Not Available |
| Dynegy/Havana Station/Cell 1, Polishing P Mason County | 26 | 1993 | High | Not Available |
| Dynegy/ Wood River East Ash Disposal Pond Dam Madison County | 33 | 2005 | High | Not Available |
| East Branch Fargo Creek Dam Lee County | 31 | 1997 | High | Not Available |
| East Fork Lake Dam Richland County | 84 | 1972 | High | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.