Marion Prison Lake Dam
Illinois — Williamson County — TRIB LIMB BRANCH
Location
| State | Illinois |
| County | Williamson |
| River | TRIB LIMB BRANCH |
| Coordinates | 37.65562, -88.97984 |
Physical Characteristics
| NID Height | 26 ft |
| Dam Height | 26 ft |
| Dam Length | 695 ft |
| NID Storage | 601 acre-ft |
| Max Storage | 601 acre-ft |
| Surface Area | 37 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Not Available |
| EAP Status | Yes |
| Last Inspection | July 6, 2023 |
| Inspection Frequency | 3 |
Dam Information
| Year Completed | 1991 |
| Primary Purpose | Water Supply |
| Dam Type | Earth |
| Owner Type | Federal |
| Owner | FEDERAL BUREAU OF PRISONS |
| Other Name | Marion Prison Lake Dam |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.