Coulterville City Reservoir Dam
Coulterville City Reservoir Dam is an earth dam located in Randolph County, Illinois, built in 1939. It carries a Low hazard potential classification.
About Coulterville City Reservoir Dam
The primary purpose of Coulterville City Reservoir Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Coulterville (local government). It impounds the Trib South Fork Creek near New Athens.
The dam stands 15 feet tall and stretches 420 feet across, and has a maximum storage capacity of 280 acre-feet. Completed in 1939, the structure is well-established, with more than 75 years of service.
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 Creek |
| Coordinates | 38.20265, -89.61922 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 420 ft |
| Year Completed | 1939 (87 years old) |
Storage & Hydraulics
| NID Storage | 280 acre-ft |
| Max Storage | 280 acre-ft |
| Normal Storage | 155 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | CITY OF COULTERVILLE |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 09/12/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00559 |
| Federal ID | IL00559 |
| More Info | State Dam Safety Program |