Argyle Lake Dam
Illinois — McDonough County — EAST FORK LA MOINE RIVER
Location
| State | Illinois |
| County | McDonough |
| River | EAST FORK LA MOINE RIVER |
| Coordinates | 40.44932, -90.78813 |
Physical Characteristics
| NID Height | 58 ft |
| Dam Height | 58 ft |
| Dam Length | 670 ft |
| NID Storage | 4,040 acre-ft |
| Max Storage | 4,040 acre-ft |
| Surface Area | 114 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Not Available |
| EAP Status | Yes |
| Last Inspection | October 1, 2025 |
| Inspection Frequency | 3 |
Dam Information
| Year Completed | 1949 |
| Primary Purpose | Recreation |
| Dam Type | Earth |
| Owner Type | State |
| Owner | ILLINOIS DEPARTMENT OF NATURAL RESOURCES |
| Other Name | Argyle Lake |
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.