Tomlinson Mill Dam Reservoir Report

Last Updated: December 13, 2025

Tomlinson Mill Dam, located in Medford, New Jersey, is a local government-owned structure on Barton Run, serving primarily for recreational purposes.


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Summary

This Earth-type dam stands at a height of 11 feet and spans a length of 300 feet, with a storage capacity of 24 acre-feet. The dam has been deemed to have a significant hazard potential but is currently in satisfactory condition based on the latest inspection in February 2022.

Managed by the New Jersey Department of Environmental Protection, Tomlinson Mill Dam is subject to state regulation, permitting, inspection, and enforcement to ensure its safety and compliance with standards. The dam's emergency action plan was last revised in July 2010, with updated contact information and procedures for emergency situations. While no significant modifications or risk assessments have been reported, the dam continues to provide essential recreational and environmental benefits to the community.

With its location in Evesham Township and proximity to the Baltimore District of USACE, Tomlinson Mill Dam plays a crucial role in water resource management and climate resilience efforts in Burlington County. As a prominent feature in the local landscape, the dam serves as a reminder of the intersection between human development and natural systems, highlighting the importance of sustainable infrastructure practices in safeguarding our water resources for future generations.

Dam Length

300

Dam Height

11

River Or Stream

Barton Run

Primary Dam Type

Earth

Surface Area

10

Drainage Area

6.1

Nid Storage

24

Hazard Potential

Significant

Nid Height

11
       
Seasonal Comparison

Weather Forecast

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.