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 1101–1125 of 1,630
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Owens Lake Dam Macoupin County | 33 | — | High | Not Available |
| Ozee Pond Dam Gallatin County | 16 | 1966 | Low | Not Available |
| Page Park Dam Winnebago County | 41 | 1980 | High | Not Available |
| Palmyra-Modesto City Lake Dam Macoupin County | 50 | 1965 | Significant | Not Available |
| Pana Lake Dam Shelby County | 53 | 1920 | High | Not Available |
| Panama Lake Dam Montgomery County | 18 | 1928 | Low | Not Available |
| Panhandle Eastern Waverly Lake Dam Morgan County | 19 | 1966 | Low | Not Available |
| Papoose Lake Dam Cook County | 12 | 1956 | Significant | Not Available |
| Paradise Lake Dam Coles County | 46 | 1929 | High | Not Available |
| Paradise Lake Dam Madison County | 20 | — | High | Not Available |
| Paragon Lake Dam Christian County | 20 | 1949 | Low | Not Available |
| Parks Pond Dam 1 McDonough County | 31 | 1976 | Low | Not Available |
| Patrick Lake Dam McDonough County | 19 | 1946 | Low | Not Available |
| Patriot Parkway Dam Kane County | 15 | 2005 | High | Not Available |
| Patterson Lake Dam Clay County | 31 | 1926 | Significant | Not Available |
| Patterson Springs Lake Dam Douglas County | 13 | 1945 | Low | Not Available |
| Paul Lake Dam Warren County | 22 | 1965 | Low | Not Available |
| Peabody Coulterville/Gateway/Slurry Cell 5 Dam Randolph County | 66 | — | Low | Not Available |
| Peabody/Eagle1/Fresh Water Lake Dam Gallatin County | 19 | 1968 | Low | Not Available |
| Peabody/Eagle 2/Lake Dam Gallatin County | 21 | 1969 | Significant | Not Available |
| Peabody/Eagle 2/Slurry Pond 3 Dam Gallatin County | 18 | 1985 | Low | Not Available |
| Peabody/Fresh Water Lake Dam Gallatin County | 12 | 1969 | Significant | Not Available |
| Peabody Lake Schuyler County | 65 | 1965 | Low | Not Available |
| Peabody Midwest/Vermilion Grove/Freshwater Lake Da Vermilion County | 29 | 2001 | Low | Not Available |
| Peabody/Pond Dam Gallatin County | 21 | 1969 | Significant | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.