Alton-wood River Sportsmens Reservoir Dam

High HazardNot Available ConditionEmergency Action Plan: Yes

Location

StateIllinois
CountyMadison
Nearest CityWOODRIVER
River/StreamTRIB COAL BRANCH CREEK
Coordinates38.93505, -90.18678

Physical Characteristics

Dam TypeEarth
NID Height33 ft
Dam Height33 ft
Dam Length480 ft
Year Completed1948 (78 years old)

Storage & Hydraulics

NID Storage119 acre-ft
Max Storage119 acre-ft
Normal Storage61 acre-ft
Surface Area11 acres
Drainage Area0 sq mi
Max Discharge43 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerALTON-WOOD RIVER SPORTMENS CLUB
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentNot Available
Last Inspection08/20/2025
Emergency Action PlanYes

Identifiers

NID IDIL00181
Federal IDIL00181
More InfoState Dam Safety Program

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