Thunderbird Lake 2 Dam

Low HazardNot Available ConditionEmergency Action Plan: No

Location

StateIllinois
CountyMcHenry
Nearest CityBARREVILLE-OFFSTREAM
River/StreamSLEEPY HOLLOW CREEK
Coordinates42.27499, -88.26902

Physical Characteristics

Dam TypeEarth
NID Height10 ft
Dam Height10 ft
Dam Length360 ft
Year Completed1965 (61 years old)

Storage & Hydraulics

NID Storage395 acre-ft
Max Storage395 acre-ft
Normal Storage220 acre-ft
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerCHARLES F. WIRTH
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Available
Last Inspection10/03/2025
Emergency Action PlanNo

Identifiers

NID IDIL01126
Federal IDIL01126
More InfoState Dam Safety Program

Nearby Dams

Thunderbird Lake 1 Dam 0.1 mi Low Silver Lake Dam 2.3 mi Low Black Tern Marsh Dam 2.4 mi Low Stratton Lock And Dam 2.5 mi Significant Yellow Head Marsh Dam 3.1 mi Low Island Lake Dam 3.4 mi Low Slocum Lake Dam 4.2 mi Low Lakeland Estates Dam 5.7 mi Low Woodscreek Detention Dam 6.4 mi Low Wold Lake Dam 6.4 mi Low