Union Lake Level Control Structure

Union Lake Level Control Structure is an earth dam located in Oakland County, Michigan, built in 1964. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Union Lake Level Control Structure

The primary purpose of Union Lake Level Control Structure is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Oakland County Drain Commissioner (private). It impounds the Hayes Creek.

The dam stands 7 feet tall and stretches 100 feet across, creates a reservoir covering 465 acres, and has a maximum storage capacity of 2,325 acre-feet. Completed in 1964, the structure is well into its service life at over 50 years old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 08/30/2019.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateMichigan
CountyOakland
River/StreamHayes Creek
Coordinates42.60194, -83.44583

Physical Characteristics

Dam TypeEarth
NID Height7 ft
Dam Height7 ft
Dam Length100 ft
Year Completed1964 (62 years old)

Storage & Hydraulics

NID Storage2,325 acre-ft
Max Storage2,325 acre-ft
Normal Storage465 acre-ft
Surface Area465 acres
Max Discharge41 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerOakland County Drain Commissioner
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection08/30/2019
Emergency Action PlanNot Required

Identifiers

NID IDMI00916
Federal IDMI00916
More InfoState Dam Safety Program

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