Bishop Lake Dam

Bishop Lake Dam is an earth dam located in Cobb County, Georgia, built in 1945. It carries a High hazard potential classification and has a satisfactory condition assessment.

About Bishop Lake Dam

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

The dam stands 27 feet tall and stretches 375 feet across, creates a reservoir covering 24 acres, has a maximum storage capacity of 399 acre-feet, and collects water from a drainage area of 650 square miles. Completed in 1945, the structure is well-established, with more than 75 years of service.

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/StreamBishop Creek
Coordinates34.00041, -84.41811

Physical Characteristics

Dam TypeEarth
NID Height27 ft
Dam Height27 ft
Dam Length375 ft
Year Completed1945 (81 years old)

Storage & Hydraulics

NID Storage399 acre-ft
Max Storage399 acre-ft
Normal Storage261 acre-ft
Surface Area24 acres
Drainage Area650 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerBishop Lake Civic Association
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection02/09/2016
Emergency Action PlanYes

Identifiers

NID IDGA01480
Federal IDGA01480
More InfoState Dam Safety Program

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