Southern Il Power Fly Ash Disp Pond B-3 Dam
Southern Il Power Fly Ash Disp Pond B-3 Dam is an earth dam located in Williamson County, Illinois, built in 1986. It carries a Low hazard potential classification.
About Southern Il Power Fly Ash Disp Pond B-3 Dam
The primary purpose of Southern Il Power Fly Ash Disp Pond B-3 Dam is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by Southern Illinois Power Cooperative (public utility). It impounds the Trib Little Saline Creek near Hugdens.
The dam stands 36 feet tall and stretches 700 feet across, creates a reservoir covering 140 acres, and has a maximum storage capacity of 140 acre-feet. Completed in 1986, the structure is 40 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 05/30/2023.
At 36 feet, this dam is taller than 83% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Illinois |
| County | Williamson |
| Nearest City | Hugdens |
| River/Stream | Trib Little Saline Creek |
| Coordinates | 37.62388, -88.95873 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 700 ft |
| Year Completed | 1986 (40 years old) |
Storage & Hydraulics
| NID Storage | 140 acre-ft |
| Max Storage | 140 acre-ft |
| Normal Storage | 45 acre-ft |
| Surface Area | 140 acres |
| Max Discharge | 175 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Debris Control |
| Owner | SOUTHERN ILLINOIS POWER COOPERATIVE |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 05/30/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL50160 |
| Federal ID | IL50160 |
| More Info | State Dam Safety Program |