Lake Coulterville Dam
Lake Coulterville Dam is an earth dam located in Randolph County, Illinois, built in 1917. It carries a Low hazard potential classification.
About Lake Coulterville Dam
The primary purpose of Lake Coulterville Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lincoln Trail Bank & Trust Company (private). It impounds the Trib South Fork Mud Creek near New Athens.
The dam stands 18 feet tall and stretches 460 feet across, and has a maximum storage capacity of 181 acre-feet. Completed in 1917, the structure is over a century 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 09/12/2023.
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Location
| State | Illinois |
| County | Randolph |
| Nearest City | New Athens |
| River/Stream | Trib South Fork Mud Creek |
| Coordinates | 38.19823, -89.59729 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 460 ft |
| Year Completed | 1917 (109 years old) |
Storage & Hydraulics
| NID Storage | 181 acre-ft |
| Max Storage | 181 acre-ft |
| Normal Storage | 109 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | LINCOLN TRAIL BANK & TRUST COMPANY |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 09/12/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00561 |
| Federal ID | IL00561 |
| More Info | State Dam Safety Program |