Tinton Manor Dam Reservoir Report

Last Updated: December 8, 2025

Tinton Manor Dam, located in Tinton Falls Borough, New Jersey, is a private-owned structure built on the Jumping Brook river.


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Summary

This Earth-type dam serves primarily for recreational purposes, with a dam height of 12.5 feet and a storage capacity of 64 acre-feet. Despite its low hazard potential, the dam's condition assessment remains unrated, with its last inspection dating back to July 1997.

The dam's state-regulated status ensures that it undergoes regular inspections, permitting, and enforcement by the New Jersey Department of Environmental Protection. While the dam's emergency action plan status and risk assessment measures remain unknown, its location in Monmouth County, New Jersey, highlights its importance in the local water resource management and climate resilience efforts. Water resource and climate enthusiasts may find Tinton Manor Dam an intriguing case study for private dam ownership and the challenges of maintaining aging infrastructure in a changing climate.

The dam's proximity to the Philadelphia District and Congressional District 04, New Jersey, underscores its regional significance in water management. Despite lacking detailed information on its construction year and modifications, Tinton Manor Dam presents an opportunity for further research and evaluation on the intersection of recreational infrastructure, water resource management, and climate resilience in New Jersey. As climate change continues to impact water systems, understanding the state of dams like Tinton Manor becomes crucial for ensuring their safety and functionality in the face of evolving environmental conditions.

Dam Length

50

Dam Height

12.5

River Or Stream

Jumping Brook

Primary Dam Type

Earth

Surface Area

14

Drainage Area

1.4

Nid Storage

64

Hazard Potential

Low

Nid Height

13
       
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.