Randolph County Lake Dam
Randolph County Lake Dam is an earth dam located in Randolph County, Illinois, built in 1960. It carries a Significant hazard potential classification.
About Randolph County Lake Dam
The primary purpose of Randolph County Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Illinois Department Of Natural Resources (state). It impounds the Morrison Branch near No Town.
The dam stands 47 feet tall and stretches 665 feet across, and has a maximum storage capacity of 1,563 acre-feet. Completed in 1960, 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 10/26/2022.
At 47 feet, this dam is taller than 92% of dams nationwide.
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Location
| State | Illinois |
| County | Randolph |
| Nearest City | No Town |
| River/Stream | Morrison Branch |
| Coordinates | 37.97025, -89.79556 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 47 ft |
| Dam Height | 47 ft |
| Dam Length | 665 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 1,563 acre-ft |
| Max Storage | 1,563 acre-ft |
| Normal Storage | 946 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | ILLINOIS DEPARTMENT OF NATURAL RESOURCES |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Not Available |
| Last Inspection | 10/26/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00551 |
| Federal ID | IL00551 |
| More Info | State Dam Safety Program |