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Happy Hollow Lake Dam

Illinois — Knox County — TRIB SPOON RIVER

Location

StateIllinois
CountyKnox
RiverTRIB SPOON RIVER
Coordinates40.92681, -90.07401

Physical Characteristics

NID Height52 ft
Dam Height52 ft
Dam Length260 ft
NID Storage232 acre-ft
Max Storage232 acre-ft
Surface Area—

Safety Classification

Hazard PotentialSignificant
Condition AssessmentNot Available
EAP StatusNo
Last InspectionMarch 28, 2024
Inspection Frequency3

Dam Information

Year Completed1940
Primary PurposeRecreation
Dam TypeEarth
Owner TypePrivate
OwnerHAPPY HOLLOW LAKE ASSOCIATION
Other NameLower Happy Hollow Lake

Location Map

About This Dam Record

Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.

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