Lake Jaycee Dam

Significant HazardNot Available ConditionEmergency Action Plan: Yes

Location

StateIllinois
CountyJefferson
Nearest CityMOUNT VERNON
River/StreamTRIB CASEY FORK
Coordinates38.36974, -88.89895

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Height30 ft
Dam Length875 ft
Year Completed1905 (121 years old)

Storage & Hydraulics

NID Storage2,110 acre-ft
Max Storage2,110 acre-ft
Normal Storage1,024 acre-ft
Surface Area115 acres
Drainage Area2 sq mi
Max Discharge3,257 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerCITY OF MOUNT VERNON
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentNot Available
Last Inspection06/22/2025
Emergency Action PlanYes

Identifiers

NID IDIL00170
Federal IDIL00170
More InfoState Dam Safety Program

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