Murrayville Woodson Lake Dam
Murrayville Woodson Lake Dam is an earth dam located in Morgan County, Illinois, built in 1963. It carries a Significant hazard potential classification.
About Murrayville Woodson Lake Dam
The primary purpose of Murrayville Woodson Lake 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 Murrayville Woodson Water Commission (public utility). It impounds the Trib Henry Creek near Winchester.
The dam stands 28 feet tall and stretches 248 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 180 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1963, the structure is well into its service life at over 50 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 04/18/2024.
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Location
| State | Illinois |
| County | Morgan |
| Nearest City | Winchester |
| River/Stream | Trib Henry Creek |
| Coordinates | 39.61533, -90.23323 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 248 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 180 acre-ft |
| Max Storage | 180 acre-ft |
| Normal Storage | 99 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 132 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | MURRAYVILLE WOODSON WATER COMMISSION |
| Owner Type | Public Utility |
| Hazard Classification | Significant |
| Condition Assessment | Not Available |
| Last Inspection | 04/18/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00721 |
| Federal ID | IL00721 |
| More Info | State Dam Safety Program |