6Total Dams
1High Hazard
4Significant
Dam Safety in Grundy County, Illinois
Grundy County has 6 dams tracked in the National Inventory of Dams. Of these, 1 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 Grundy County is 47 years old. The most common purpose is recreation. The tallest dam is Dresden Island Lock and Dam at 33 ft.
Explore more: Oldest dams in Illinois · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Dresden Cooling Lake Dam | High | Not assessed | 25 | Other | 1971 |
| Dresden Island Lock and Dam | Significant | Not assessed | 33 | Navigation | 1933 |
| Collins Station Cooling Lake Dam | Significant | Not assessed | 27 | Other | 1975 |
| Beaver Lake Dam | Significant | Not assessed | 15 | Recreation | 1984 |
| International Center South Dam | Significant | Not assessed | 7 | Flood Risk Reduction | 2004 |
| Hickory Lake Dam | Low | Not assessed | 12 | Recreation | 2002 |