Lake A Twin Lakes Subdivision Dam

Lake A Twin Lakes Subdivision Dam is an earth dam located in Harrison County, Mississippi, built in 1983. It carries a High hazard potential classification and has a fair condition assessment.

About Lake A Twin Lakes Subdivision Dam

The primary purpose of Lake A Twin Lakes Subdivision Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Twin Lake Home Owners (private).

The dam stands 20 feet tall and stretches 800 feet across, creates a reservoir covering 22 acres, has a maximum storage capacity of 280 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1983, the structure is 43 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 03/16/2023.

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 Mississippi 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 HazardFair ConditionEmergency Action Plan: Yes

Location

StateMississippi
CountyHarrison
Coordinates30.55227, -89.17235

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Height17 ft
Dam Length800 ft
Year Completed1983 (43 years old)

Storage & Hydraulics

NID Storage280 acre-ft
Max Storage280 acre-ft
Normal Storage190 acre-ft
Surface Area22 acres
Drainage Area0 sq mi
Max Discharge320 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerTWIN LAKE HOME OWNERS
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection03/16/2023
Emergency Action PlanYes

Identifiers

NID IDMS02918
Federal IDMS02918
More InfoState Dam Safety Program

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