Hunterdon Learning Center Dam Reservoir Report

Last Updated: December 6, 2025

Hunterdon Learning Center Dam, located in High Bridge, New Jersey, is a privately owned earth dam constructed in 1971 on the South Branch Raritan River.


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Summary

The dam stands at 35 feet tall and spans 310 feet in length, with a storage capacity of 62 acre-feet. Although primarily built for recreational purposes, the dam is also regulated by the New Jersey Department of Environmental Protection, ensuring its safety and compliance with state regulations.

With a low hazard potential and a condition assessment that is currently not rated, the Hunterdon Learning Center Dam serves as a vital resource for the community while also posing minimal risks. However, the last inspection of the dam took place in 2001, highlighting the importance of regular maintenance and monitoring to ensure its continued safety and functionality. The dam's location in Lebanon Township and its proximity to the South Branch Raritan River make it a valuable asset for water resource and climate enthusiasts in the region.

Overall, the Hunterdon Learning Center Dam provides a key recreational outlet for residents of Hunterdon County, New Jersey, while also contributing to the management of water resources in the area. As a privately owned structure, the dam's operations and maintenance are overseen by the Natural Resources Conservation Service, emphasizing the importance of collaboration between private owners and regulatory agencies to ensure the safety and sustainability of water infrastructure in the region. As climate change continues to impact water resources, the Hunterdon Learning Center Dam stands as a testament to the importance of responsible dam management and maintenance in the face of evolving environmental challenges.

Year Completed

1971

Dam Length

310

Dam Height

35

River Or Stream

South Branch Raritan River

Primary Dam Type

Earth

Surface Area

2

Drainage Area

0.4

Nid Storage

62

Hazard Potential

Low

Nid Height

35
       
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.