Bay Creek #8
Bay Creek #8 is an earth dam located in Pope County, Illinois, built in 1977. It carries a Significant hazard potential classification.
About Bay Creek #8
The primary purpose of Bay Creek #8 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Usda Fs (federal). It impounds the Bay Creek.
The dam stands 59 feet tall and stretches 780 feet across, creates a reservoir covering 90 acres, and has a maximum storage capacity of 25 acre-feet. Completed in 1977, the structure is 49 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 08/14/2015. That was over 10 years ago.
At 59 feet, this dam is taller than 95% of all dams in the United States.
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Location
| State | Illinois |
| County | Pope |
| Nearest City | None |
| River/Stream | Bay Creek |
| Coordinates | 37.38965, -88.68815 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 59 ft |
| Dam Height | 49 ft |
| Dam Length | 780 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 633 acre-ft |
| Max Storage | 25 acre-ft |
| Normal Storage | 633 acre-ft |
| Surface Area | 90 acres |
| Max Discharge | 1,105 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | USDA FS |
| Owner Type | Federal |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Last Inspection | 08/14/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IL00039 |
| Federal ID | IL00039 |
| More Info | State Dam Safety Program |