Massengill Dam

Massengill Dam is an earth dam located in Wake County, North Carolina. It carries a High hazard potential classification and has a fair condition assessment.

About Massengill Dam

The primary purpose of Massengill Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Wakefield Development Company (private). It impounds the Swift Creek near Garner.

The dam stands 30 feet tall and stretches 500 feet across, creates a reservoir covering 6 acres, and has a maximum storage capacity of 82 acre-feet.

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. Notably, no emergency action plan is currently on file for this high-hazard dam. The most recent inspection on record was 11/20/2024.

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 North Carolina 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: No

Location

StateNorth Carolina
CountyWake
Nearest CityGarner
River/StreamSwift Creek
Coordinates35.66930, -78.66610

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Length500 ft

Storage & Hydraulics

NID Storage82 acre-ft
Max Storage82 acre-ft
Normal Storage64 acre-ft
Surface Area6 acres
Spillway TypeControlled

Ownership & Safety

PurposeRecreation
OwnerWakefield Development Company
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection11/20/2024
Emergency Action PlanNo

Identifiers

NID IDNC04626
Federal IDNC04626
More InfoState Dam Safety Program

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