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 1126–1150 of 1,630
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Peabody/Randolph Plant/Slurry Pond Dam St. Clair County | 45 | 1999 | Low | Not Available |
| Peabody/River King/Lake Dam St. Clair County | 13 | 1957 | Low | Not Available |
| Pearl City Lagoon Dam Stephenson County | 11 | 1970 | Significant | Not Available |
| Pebble Creek Dam Winnebago County | 21 | 1984 | High | Not Available |
| Pelikan-Surgeon-Shapanski Jersey County | 45 | 1965 | Low | Not Available |
| Peoria City-County Landfill 2 Dam Peoria County | 22 | 2000 | Low | Not Available |
| Peoria Lock and Dam Tazewell County | 23 | 1939 | Significant | Not Available |
| Perring Pond Dam 1 De Witt County | 22 | 1978 | Low | Not Available |
| Pickle Pond Dam Ogle County | 22 | 1991 | Low | Not Available |
| Pierce Lake Dam Winnebago County | 46 | 1960 | High | Not Available |
| Pilcher Park Dam Will County | — | — | Significant | Not Available |
| Pinckneyville Reservoir Dam Perry County | 45 | 1953 | Significant | Not Available |
| Pine Lake Dam Madison County | 20 | 1908 | Significant | Not Available |
| Pine Lake Dam Pike County | 25 | 1924 | High | Not Available |
| Pine Lake Dam Kane County | 14 | 1940 | High | Not Available |
| Pine Lakes Country Club North Pond Dam Tazewell County | 42 | 1959 | Low | Not Available |
| Pine Lakes Country Club South Pond Dam Tazewell County | 27 | 1958 | Low | Not Available |
| Piney Cove Dam Moultrie County | 34 | 1967 | Low | Not Available |
| Piney Wood Lake Dam Washington County | 26 | 1954 | Low | Not Available |
| Pinnacle Pond 1 Dam Will County | 10 | 2008 | Low | Not Available |
| Pinnacle Pond 5 Dam Will County | 12 | 2007 | Low | Not Available |
| Pin Oak Drive Pond Dam Madison County | 14 | — | High | Not Available |
| Pittsfield Dredge Disposal Pond Dam Pike County | 35 | 1997 | Low | Not Available |
| Pittsfield Lake 2 Dam Pike County | 32 | 1960 | Low | Not Available |
| Pittsfield Sediment Trap Dam Pike County | 11 | 1997 | Low | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.