Humphrey Pond Dam Reservoir Report

Last Updated: December 6, 2025

Humphrey Pond Dam, located in Orangeville, Wyoming County, New York, stands as a vital structure along the TRIB-TONAWANDA CREEK, serving primarily for recreational purposes.


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Summary

Owned privately, the dam is regulated by the NYS DEC, with state permitting, inspection, and enforcement in place to ensure its safety and compliance. With a height of 29 feet and a length of 1350 feet, the dam boasts a storage capacity of 68 acre-feet, providing a surface area of 4 acres for recreational activities.

Despite its significant hazard potential, Humphrey Pond Dam has not been rated for its current condition, although it undergoes inspections every four years. The dam features an uncontrolled spillway with a width of 16 feet, capable of handling a maximum discharge of 150 cubic feet per second. While its risk assessment indicates moderate risk, no specific risk management measures are outlined. The dam's Emergency Action Plan (EAP) status and compliance with guidelines remain unclear, suggesting room for improvement in emergency preparedness and risk mitigation strategies.

Overall, Humphrey Pond Dam stands as a crucial infrastructure for recreation and water resource management in the region, calling for continued monitoring, assessment, and potential enhancements to ensure its safety and resilience in the face of climate challenges and potential emergencies. Enthusiasts of water resources and climate sustainability can appreciate the complexities and importance of such structures in balancing human needs with environmental stewardship.

Dam Length

1350

Dam Height

29

River Or Stream

TRIB-TONAWANDA CREEK

Primary Dam Type

Earth

Surface Area

4

Drainage Area

0.1

Nid Storage

68

Hazard Potential

Significant

Nid Height

29
       
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.