Happy Hollow Lake Dam

Significant HazardNot Available ConditionEmergency Action Plan: No

Location

StateIllinois
CountyKnox
Nearest CityDAHINDA
River/StreamTRIB SPOON RIVER
Coordinates40.92681, -90.07401

Physical Characteristics

Dam TypeEarth
NID Height52 ft
Dam Height52 ft
Dam Length260 ft
Year Completed1940 (86 years old)

Storage & Hydraulics

NID Storage232 acre-ft
Max Storage232 acre-ft
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerHAPPY HOLLOW LAKE ASSOCIATION
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentNot Available
Last Inspection03/28/2024
Emergency Action PlanNo

Identifiers

NID IDIL00417
Federal IDIL00417
More InfoState Dam Safety Program

Nearby Dams

Happy Hollow Lake 2 Dam 0.2 mi Significant Spoon Lake Dam 3.2 mi High Daum Lake Dam 3.4 mi Low Manson Heights Dams 5.1 mi Low Lake Mcmaster Dam 5.4 mi High Bruington Lake Dam 6.0 mi Low Roundhouse Lake Dam 6.3 mi Significant Elmore Stock Farm Pond Dam 6.3 mi Low Lake Windsor Dam 6.5 mi Low Cowen Pond Dam 6.6 mi Low