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 526–550 of 1,008
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Liberty Land/Mine 24/Freshwater Lake Dam Franklin County | 20 | 1996 | Low | Not Available |
| Liberty Land/Mine 24/North Pond Dam Franklin County | 24 | 1982 | Low | Not Available |
| Liberty Land/Mine 24/Slurry Cell 2 Dam Franklin County | 55 | 1988 | Low | Not Available |
| Liberty Land/Mine 26/Slurry Cell 4 Dam Franklin County | 56 | 1997 | Low | Not Available |
| Lily Cache Business Dam Will County | 14 | — | Low | Not Available |
| Limkemann Pond Dam Hancock County | 28 | 1975 | Low | Not Available |
| Little Cache Structure 10 Dam Johnson County | 36 | 1969 | Low | Not Available |
| Little Cache Structure 5 Dam Johnson County | 31 | 1973 | Low | Not Available |
| Little Cedar Jackson County | 30 | 1969 | Low | Not Rated |
| Little Galilee Lake Dam De Witt County | 35 | 1954 | Low | Not Available |
| Little Lake Dam Jackson County | 15 | 1970 | Low | Not Available |
| Little Sister Lake Dam Fulton County | 38 | 1965 | Low | Not Available |
| Little Swan Lake Dam Warren County | 49 | 1968 | Low | Not Available |
| Little Wabash River Dam Effingham County | 13 | 1900 | Low | Not Available |
| Living Springs Camp Pond Dam Fulton County | 26 | 1974 | Low | Not Available |
| Longs Lake Dam Cass County | 28 | 1960 | Low | Not Available |
| Loren See Lake Dam Edgar County | 26 | 1960 | Low | Not Available |
| Lost Nation Country Club Lake Dam Ogle County | 30 | 1975 | Low | Not Available |
| Lowell Gardner Pond Dam Warren County | 26 | 1975 | Low | Not Available |
| Lower Columbia Quarry Dam Macoupin County | 30 | — | Low | Not Available |
| Lusters Lake Dam Christian County | 22 | 1960 | Low | Not Available |
| Lutticken Lake Dam Tazewell County | 60 | 1959 | Low | Not Available |
| Lutticken South Pond Dam Tazewell County | 33 | 1962 | Low | Not Available |
| Lyle Avenue Dam Kane County | 8 | 1997 | Low | Not Available |
| Lynnwood Lake Dam Henry County | 24 | 1960 | Low | Not Available |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.