Hipps Folley Dam Reservoir Report

Last Updated: December 6, 2025

Hipps Folley Dam, located in New Egypt, New Jersey, is a Federal-owned recreational dam constructed by the US Air Force in 1967.


°F

°F

mph

Wind

%

Humidity

Summary

With a height of 15 feet and a length of 350 feet, this earthen dam provides a surface area of 6.4 acres and a storage capacity of 98 acre-feet. The dam's primary purpose is for recreation, offering opportunities for water activities and wildlife observation in the surrounding area.

Managed by the US Air Force, Hipps Folley Dam has a low hazard potential and is inspected every four years to ensure its structural integrity and safety. The dam is equipped with an uncontrolled spillway with a width of 6 feet, allowing for a maximum discharge of 250 cubic feet per second. Despite its moderate risk assessment, the dam is not currently rated for its condition, and there is no Emergency Action Plan in place as of the last update in 2009.

With its picturesque location on the SOUTH RUN TR river and proximity to the Philadelphia District, Hipps Folley Dam serves as a vital water resource for the community while also offering a tranquil recreational space for visitors to enjoy. Its historical significance, combined with its ecological importance, makes it a compelling destination for water resource and climate enthusiasts seeking to explore the intersection of human infrastructure and natural landscapes.

Year Completed

1967

Dam Length

350

Dam Height

15

River Or Stream

SOUTH RUN TR

Primary Dam Type

Earth

Surface Area

6.4

Drainage Area

0.26

Nid Storage

98

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

15
       
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.