Vincentown Mill Dam Reservoir Report

Last Updated: December 6, 2025

Vincentown Mill Dam, located in Vincentown, Burlington County, New Jersey, is a historic earth dam with a primary purpose of recreation.


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Summary

Built in 1891, this dam stands at a height of 12 feet and has a length of 400 feet, with a storage capacity of 557 acre-feet. The dam is situated on the South Branch Rancocas Creek and serves as a popular spot for outdoor activities in Southampton Township.

Managed by local government authorities, the dam is regulated by the New Jersey Department of Environmental Protection and undergoes regular inspections to ensure its structural integrity. With a high hazard potential, the dam is deemed to be in satisfactory condition as of the last assessment in March 2021. While no emergency action plan is currently in place, the dam's owners are advised to consider preparing one to meet safety guidelines and mitigate risks associated with its operation.

Vincentown Mill Dam is not only a vital recreational asset but also plays a crucial role in water resource management in the region. As climate change continues to impact water availability and quality, ensuring the safety and upkeep of dams like Vincentown Mill Dam is essential for preserving the surrounding ecosystem and supporting the community's water needs.

Year Completed

1891

Dam Length

400

Dam Height

12

River Or Stream

South Branch Rancocas Creek

Primary Dam Type

Earth

Surface Area

22

Drainage Area

52

Nid Storage

557

Hazard Potential

High

Nid Height

12
       
Seasonal Comparison

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Dam Data Reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.