Heritage Lake Dam

Significant HazardNot Available ConditionEmergency Action Plan: Yes

Location

StateIllinois
CountyTazewell
Nearest CityMACKINAW
River/StreamTRIB MACKINAW RIVER
Coordinates40.54735, -89.34117

Physical Characteristics

Dam TypeEarth
NID Height56 ft
Dam Height56 ft
Dam Length590 ft
Year Completed1968 (58 years old)

Storage & Hydraulics

NID Storage2,425 acre-ft
Max Storage2,425 acre-ft
Normal Storage1,703 acre-ft
Surface Area78 acres
Drainage Area1 sq mi
Max Discharge1,820 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerHERITAGE LAKE ASSOCIATION, INC.
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentNot Available
Last Inspection11/22/2024
Emergency Action PlanYes

Identifiers

NID IDIL00346
Federal IDIL00346
More InfoState Dam Safety Program

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