Dams in LaSalle County, Illinois
18Total Dams
7High Hazard
4Significant
Dam Safety in LaSalle County, Illinois
LaSalle County has 18 dams tracked in the National Inventory of Dams. Of these, 7 are classified as high hazard — meaning failure would probably cause loss of human life. Another 4 carry a significant hazard classification.
The average dam in LaSalle County is 66 years old. The most common purpose is recreation. The tallest dam is Bazzoni Lake Dam at 65 ft.
Explore more: Oldest dams in Illinois · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Lasalle Co. Nuclear Station Cooling Lake Dam | High | Not Available | 43 | Other | 1977 |
| Holiday Lake Dam | High | Not Available | 41 | Recreation | 1965 |
| Lake Kakusha Dam | High | Not Available | 29 | Flood Risk Reduction | 1981 |
| Northern White Sands Dam | High | Not Available | 28 | Other | |
| Northeast Recreation Area Dam | High | Not Available | 27 | Flood Risk Reduction | 1988 |
| Lake Mendota Dam | High | Not Available | 17 | Recreation | 1890 |
| Dayton Estates Dam | High | Not Available | 15 | Recreation | 1965 |
| Marseilles Lock And Dam | Significant | Not Available | 58 | Navigation | 1933 |
| Deer Park Lake Dam | Significant | Not Available | 55 | Recreation | 1910 |
| Starved Rock Lock And Dam | Significant | Not Available | 35 | Navigation | 1933 |
| Sabic Basins Dam | Significant | Not Available | 10 | Other | 1960 |
| Bazzoni Lake Dam | Low | Not Available | 65 | Recreation | 1989 |
| Unimin Tailings Pond O Dam | Low | Not Available | 56 | Tailings | 2010 |
| Dayton | Low | Satisfactory | 26 | Navigation | 1925 |
| Alleman Lake Dam | Low | Not Available | 26 | Recreation | 1975 |
| Saddlewood Estates Dam | Low | Not Available | 20 | Recreation | 1991 |
| Mendota Agri-products Storage Lagoon 5 Dam | Low | Not Available | 16 | Other | 2012 |
| Marseilles Power Canal Dam | Low | Not Available | 15 | Hydroelectric | 1911 |