Pine Lake Park Dam

Pine Lake Park Dam is an earth dam located in Ocean County, New Jersey, built in 1931. It carries a Significant hazard potential classification and has a satisfactory condition assessment.

About Pine Lake Park Dam

The primary purpose of Pine Lake Park Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Township Of Manchester (local government). It impounds the Union Branch Toms River near Lakehurst.

The dam stands 16 feet tall and stretches 260 feet across, creates a reservoir covering 150 acres, has a maximum storage capacity of 843 acre-feet, and collects water from a drainage area of 63 square miles. Completed in 1931, the structure is well-established, with more than 75 years of service.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. 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 06/07/2024.

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Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateNew Jersey
CountyOcean
Nearest CityLakehurst
River/StreamUnion Branch Toms River
Coordinates40.00670, -74.24845

Physical Characteristics

Dam TypeEarth
NID Height16 ft
Dam Height16 ft
Dam Length260 ft
Year Completed1931 (95 years old)

Storage & Hydraulics

NID Storage843 acre-ft
Max Storage843 acre-ft
Normal Storage357 acre-ft
Surface Area150 acres
Drainage Area63 sq mi
Max Discharge3,513 cfs

Ownership & Safety

PurposeRecreation
OwnerTownship of Manchester
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection06/07/2024
Emergency Action PlanYes

Identifiers

NID IDNJ00091
Federal IDNJ00091
More InfoState Dam Safety Program

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