Lebanon Forest #1 Dam Reservoir Report

Last Updated: December 6, 2025

Lebanon Forest #1 Dam, located in Pemberton Township, New Jersey, is a local government-owned structure primarily designed for recreation purposes.


°F

°F

mph

Wind

%

Humidity

Summary

This Earth-type dam stands at a height of 10 feet and spans 900 feet in length, creating a reservoir with a storage capacity of 106 acre-feet. Situated on the Bisphams Mill Creek, the dam serves as a recreational spot for visitors to enjoy activities such as fishing, boating, and picnicking in the surrounding area.

Managed by the New Jersey Department of Environmental Protection (NJDEP), Lebanon Forest #1 Dam is regulated and inspected by state authorities to ensure its structural integrity and compliance with safety standards. The dam has been assessed as in satisfactory condition, with a significant hazard potential due to its size and location. Regular inspections are conducted, with the last assessment completed in April 2021, ensuring the safety and maintenance of this vital water resource for the community.

With a surface area of 40 acres and a drainage area of 11.2 square miles, Lebanon Forest #1 Dam plays a crucial role in water management and conservation efforts in Burlington County, New Jersey. As a key feature in the local landscape, this dam not only provides recreational opportunities but also serves as a vital component in the region's water resource infrastructure, highlighting the importance of sustainable management practices to protect and preserve this essential natural resource for future generations.

Dam Length

900

Dam Height

10

River Or Stream

Bisphams Mill Creek

Primary Dam Type

Earth

Surface Area

40

Drainage Area

11.2

Nid Storage

106

Hazard Potential

Significant

Nid Height

10
       
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.