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 1551–1575 of 1,630
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Weingardt Pond Dam Sangamon County | 25 | 1964 | Low | Not Available |
| Weinmister Pond Dam Mercer County | 28 | 1978 | Low | Not Available |
| Weiss Lake Dam Madison County | 20 | 1974 | Significant | Not Available |
| Weldon Springs State Park Lake Dam De Witt County | 30 | 1900 | Significant | Not Available |
| Wenzel Pond Dam 1 Macoupin County | 25 | 1981 | Low | Not Available |
| Weslake Dam St. Clair County | 48 | 1962 | Significant | Not Available |
| Western Fuels Assoc/Brushy Cr/East Slurry Dam Saline County | 29 | 1984 | Low | Not Available |
| Western Fuels Assoc/Brushy Cr/Freshwater Lake Dam Saline County | 28 | 1990 | Low | Not Available |
| Western Fuels Assoc/Brushy Cr/West Slurry Dam Saline County | 55 | 1990 | Significant | Not Available |
| Western Fuels/Brushy Creek/Slurry Cell 4 Dam Saline County | 40 | 1994 | Low | Not Available |
| Western Fuels/Brushy Creek/Slurry Cell 5 Saline County | 45 | 2004 | Low | Not Available |
| Western Fuels/Brushy Cr/Main Slurry Dam Saline County | 31 | 1983 | Low | Not Available |
| West Frankfort New City Lake Dam Franklin County | 25 | 1945 | High | Not Available |
| West Frankfort Old City Lake Dam Franklin County | 24 | 1945 | Significant | Not Available |
| West Lake Country Club Lake Dam Jersey County | 21 | 1955 | Low | Not Available |
| West Lake Dam Crawford County | 16 | 1948 | Significant | Not Available |
| West Lake Dam Kane County | 35 | 1951 | High | Not Available |
| West Lake Dam Tazewell County | 49 | 1955 | Low | Not Available |
| West Lake Estates Dam Monroe County | 33 | 1986 | Significant | Not Available |
| West Salem New Reservoir Dam Edwards County | 14 | 1968 | Significant | Not Available |
| Westview Acres Lake Dam Monroe County | 29 | 1999 | Significant | Not Available |
| Westwood Creek Dam DuPage County | 16 | 1996 | Low | Not Available |
| Wetfoot Lake Dam Cook County | 13 | — | Low | Not Available |
| White Hall Reservoir Dam Greene County | 38 | 1952 | Significant | Not Available |
| White Lake Dam Lake County | 11 | 1964 | Low | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.