Argyle Lake Dam

McDonough County, Illinois (near COLCHESTER)

River/Stream: EAST FORK LA MOINE RIVER

Significant Hazard

Failure could cause economic loss or disruption

Key Facts

Dam Type
Earth
Height
58 ft
Dam Length
670 ft
Reservoir Storage
4,040 acre-ft
Year Completed
1949
Primary Purpose
Recreation
Owner Type
State
Max Discharge
13,580 cfs

Condition Assessment

Not AvailableLast inspected: 2025-05-09

Hazard Classification: Significant — This describes the potential consequences of dam failure, not the likelihood of failure.

Condition Assessment: Not Available — This describes the current physical condition of the dam based on the most recent inspection.

Location

Loading map...

Quick Stats

NID ID
IL00270
State
Illinois (IL)
Coordinates
40.44932, -90.78813
Age
77 years

Nearby Dams

External Resources

Data sourced from the National Inventory of Dams (NID). Information may not reflect the most current status of this dam. Hazard classification reflects potential consequences of failure, not the likelihood of failure or the current condition.