Gateway Medical Lake Dam

High HazardNot Available ConditionEmergency Action Plan: Yes

Location

StateIllinois
CountyMadison
Nearest CityEDWARDSVILLE
River/StreamTRIB CAHOKIA CREEK
Coordinates38.79869, -89.97288

Physical Characteristics

Dam TypeEarth
NID Height31 ft
Dam Height31 ft
Dam Length230 ft
Year Completed1939 (87 years old)

Storage & Hydraulics

NID Storage26 acre-ft
Max Storage26 acre-ft
Normal Storage16 acre-ft
Drainage Area0 sq mi
Max Discharge468 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerGRANITE CITY HOSPITAL CO., LLC
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentNot Available
Last Inspection07/11/2025
Emergency Action PlanYes

Identifiers

NID IDIL50619
Federal IDIL50619
More InfoState Dam Safety Program

Nearby Dams

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