Perrywood (manor House Drive)

About Perrywood (manor House Drive)

The primary purpose of Perrywood (manor House Drive) is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Perrywood Manor Hoa, Inc. (private). It impounds the Collington Branch - Tr near Largo.

The dam stands 16 feet tall and stretches 300 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 110 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1984, the structure is 42 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. Notably, no emergency action plan is currently on file for this high-hazard dam. The most recent inspection on record was 06/09/2022.

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 Maryland dam safety program can provide more specific information about emergency planning for this structure.

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