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 |
|---|---|---|---|---|
| Becker Pond Dam Morgan County | 27 | 1976 | Low | Not Available |
| Beaver Lake Dam Franklin County | 10 | 1955 | Low | Not Available |
| Beaver Lake Dam Macoupin County | 16 | 1912 | Low | Not Available |
| Beaver Lake Dam Grundy County | 15 | 1984 | Significant | Not Available |
| Beaver Glenn Lake Dam Bureau County | 24 | 1973 | High | Not Available |
| Beall Woods Lake Dam Wabash County | 12 | 1960 | Low | Not Available |
| Bazzoni Lake Dam LaSalle County | 65 | 1989 | Low | Not Available |
| Bay Creek Structure 5 Dam Pope County | 51 | 1976 | Significant | Not Available |
| Bay Creek Structure 4 Dam Johnson County | 36 | 1977 | Low | Not Available |
| Bay Creek #8 Pope County | 59 | 1977 | Significant | Not Rated |
| Batavia Dam Kane County | 6 | 1916 | Significant | Not Available |
| Bass Lake Dam Lee County | 11 | 1971 | Low | Not Available |
| Bass Lake Dam Clark County | 33 | 1952 | Low | Not Available |
| Barwell Lake Dam Woodford County | 31 | 1956 | Low | Not Available |
| Bartlett Pond Dam 2 Jersey County | 30 | 1969 | Low | Not Available |
| Bartlett Pond Dam 1 Jersey County | 30 | 1968 | Low | Not Available |
| Barths Lake Dam Macoupin County | 29 | 1950 | Low | Not Available |
| Barnes Lake Dam Marshall County | 23 | 1957 | Significant | Not Available |
| Barkhausen Refuge Dam Mason County | 10 | — | Low | Not Available |
| Barger Lake Dam Pope County | 39 | 1958 | Low | Not Available |
| Barclay Station Detention Dam Lake County | 9 | 1993 | Low | Not Available |
| Baldwin Station Fly Ash Pond Randolph County | — | — | Significant | Not Available |
| Baldwin Station Bottom Ash Pond Randolph County | — | — | Significant | Not Available |
| Baldwin Plant Cooling Lake Dikes St. Clair County | 55 | 1968 | High | Not Available |
| Baldwin Plant Cooling Lake Dam Randolph County | 55 | 1968 | High | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.