Dams in Grundy County, Illinois
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
Data note: Hazard potential describes the consequences if a dam failed; it does not predict the likelihood of failure. Inspection, condition, and emergency-plan fields can be incomplete or delayed. Check state dam-safety officials and local emergency managers for official guidance.
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Dresden Cooling Lake Dam | High | Not Available | 25 | Other | 1971 |
| Dresden Island Lock And Dam | Significant | Not Available | 33 | Navigation | 1933 |
| Collins Station Cooling Lake Dam | Significant | Not Available | 27 | Other | 1975 |
| Beaver Lake Dam | Significant | Not Available | 15 | Recreation | 1984 |
| International Center South Dam | Significant | Not Available | 7 | Flood Risk Reduction | 2004 |
| Hickory Lake Dam | Low | Not Available | 12 | Recreation | 2002 |