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 1576–1600 of 1,630
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| White Oak Lake Dam Woodford County | 58 | 1983 | Low | Not Available |
| White Pine Ditch Dam Cook County | 13 | 1975 | Significant | Not Available |
| Whiteside Pond Dam Warren County | 27 | 1976 | Low | Not Available |
| Whites Pond Dam Macoupin County | 30 | 1953 | Low | Not Available |
| Whitfield Lake Dam Macoupin County | 30 | 1954 | Low | Not Available |
| Whitfield Pond Dam 2 Macoupin County | 28 | 1954 | Low | Not Available |
| Whitfield Pond Dam 3 Macoupin County | 30 | 1956 | Low | Not Available |
| Whitley Dam Schuyler County | 30 | — | Low | Not Available |
| Whoopie Cat Hardin County | 44 | 1977 | Significant | Poor |
| Wick Pond Dam 1 Madison County | 26 | 1977 | Undetermined | Not Available |
| Widner Lake Dam Iroquois County | 19 | 1965 | Low | Not Available |
| Wiemers Pond Dam 1 Madison County | 25 | 1970 | Low | Not Available |
| Wildlife Lake Dam Washington County | 30 | 1941 | Significant | Not Available |
| Wildwood Lake Dam Tazewell County | 27 | 1962 | Low | Not Available |
| Wildwood Lake Dam Marshall County | 84 | 1969 | High | Not Available |
| Wildwood Lake Estates Dam St. Clair County | 35 | 1982 | Significant | Not Available |
| Wilkinson Pond Dam Madison County | 37 | 1968 | Low | Not Available |
| Willaredt Lake Dam 1 Madison County | 26 | 1968 | Low | Not Available |
| Williams Lake Dam Washington County | 29 | 1968 | Low | Not Available |
| Williamson Energy/Pond Creek Mine/Refuse Disposal Facility Williamson County | 88 | — | High | Not Available |
| Williamsville Lake Dam 1 Sangamon County | 23 | 1971 | Low | Not Available |
| Willow Higgins Reservoir Dam Cook County | 12 | — | Significant | Not Available |
| Willow Lake Dam Stephenson County | 25 | 1974 | High | Not Available |
| Willow Lake Estates Dam Monroe County | 17 | 1996 | Low | Not Available |
| Willow Wood Lake Dam St. Clair County | 36 | 2003 | Low | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.