Miller Lake Dam

Jefferson County, Illinois (near MOUNT VERNON)

River/Stream: TRIB CASEY FORK

High Hazard

Failure would likely cause loss of life

Key Facts

Dam Type
Earth
Height
40 ft
Dam Length
870 ft
Reservoir Storage
3,510 acre-ft
Year Completed
1947
Primary Purpose
Recreation
Owner Type
Local Government
Max Discharge
6,550 cfs

Condition Assessment

Not AvailableLast inspected: 2025-06-02

Hazard Classification: High — 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
IL00171
State
Illinois (IL)
Coordinates
38.39671, -88.89326
Age
79 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.