Hackettstown Res. Dam

About Hackettstown Res. Dam

The primary purpose of Hackettstown Res. Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Ironbound Real Estate Holdings, Llc (private). It impounds the Mine Brook.

The dam stands 38 feet tall and stretches 285 feet across, creates a reservoir covering 48 acres, has a storage capacity of 68 acre-feet, and collects water from a drainage area of 1 square miles.

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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 03/28/2022.

At 38 feet, this dam is taller than 85% of dams nationwide.

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

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