Holiday Lake Dam

High HazardNot Available ConditionEmergency Action Plan: Yes

Location

StateIllinois
CountyLaSalle
Nearest CitySHERIDAN
River/StreamSOMONAUK CREEK
Coordinates41.60511, -88.67901

Physical Characteristics

Dam TypeEarth
NID Height41 ft
Dam Height41 ft
Dam Length1,110 ft
Year Completed1965 (61 years old)

Storage & Hydraulics

NID Storage10,159 acre-ft
Max Storage10,159 acre-ft
Normal Storage2,223 acre-ft
Surface Area295 acres
Drainage Area64 sq mi
Max Discharge30,580 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerLAKE HOLIDAY PROPERTY OWNERS ASSOCIATION
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentNot Available
Last Inspection10/24/2025
Emergency Action PlanYes

Identifiers

NID IDIL00458
Federal IDIL00458
More InfoState Dam Safety Program

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