Loch Highland Upper Lake Dam

Loch Highland Upper Lake Dam is an earth dam located in Cobb County, Georgia, built in 1974. It carries a High hazard potential classification and has a satisfactory condition assessment.

About Loch Highland Upper Lake Dam

The primary purpose of Loch Highland Upper Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Loch Highland Homeowners Association (private). It impounds the Unknown.

The dam stands 27 feet tall and stretches 421 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 330 acre-feet, and collects water from a drainage area of 1,708 square miles. Completed in 1974, the structure is well into its service life at over 50 years old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 02/09/2016. That was 10 years ago — unusually long for a high-hazard dam, which typically requires more frequent inspections.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Georgia dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateGeorgia
CountyCobb
River/StreamUnknown
Coordinates34.04539, -84.42827

Physical Characteristics

Dam TypeEarth
NID Height27 ft
Dam Height27 ft
Dam Length421 ft
Year Completed1974 (52 years old)

Storage & Hydraulics

NID Storage330 acre-ft
Max Storage330 acre-ft
Normal Storage66 acre-ft
Surface Area8 acres
Drainage Area1,708 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerLoch Highland Homeowners Association
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection02/09/2016
Emergency Action PlanYes

Identifiers

NID IDGA03867
Federal IDGA03867
More InfoState Dam Safety Program

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