Alton-Wood River Sportsmens Reservoir Dam

Madison County, Illinois (near WOODRIVER)

River/Stream: TRIB COAL BRANCH CREEK

High Hazard

Failure would likely cause loss of life

Key Facts

Dam Type
Earth
Height
33 ft
Dam Length
480 ft
Reservoir Storage
119 acre-ft
Year Completed
1948
Primary Purpose
Recreation
Owner Type
Private
Max Discharge
43 cfs

Condition Assessment

Not AvailableLast inspected: 2025-08-20

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
IL00181
State
Illinois (IL)
Coordinates
38.93505, -90.18678
Age
78 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.