Allen Pond Dam Reservoir Report

Last Updated: December 6, 2025

Located in Gilbertsville, New York, the Allen Pond Dam stands as a significant structure along Morris Brook, serving primarily for recreation purposes since its completion in 1917.


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Summary

With a height of 18 feet and a length of 30 feet, this dam boasts a NID storage capacity of 231 acre-feet and a surface area of 26.6 acres. Despite its age, the dam continues to provide valuable recreational opportunities for locals and visitors alike.

However, recent assessments indicate a concerning state of disrepair, with a poor condition rating and significant hazard potential. The last inspection in November 2020 highlighted the urgent need for maintenance and potential risk mitigation measures to ensure the safety of the surrounding community. With a moderate risk assessment rating, there is a pressing need for action to address the dam's structural integrity and prevent potential disasters from unfolding.

As climate change continues to impact water resources and infrastructure across the country, the Allen Pond Dam serves as a reminder of the importance of proactive maintenance and risk management for aging structures. With its historical significance and recreational value, efforts to address its current condition and ensure its long-term viability are essential to safeguarding both the environment and the community it serves.

Year Completed

1917

Dam Length

30

Dam Height

18

River Or Stream

MORRIS BROOK

Primary Dam Type

Other

Surface Area

26.6

Drainage Area

2.04

Nid Storage

231

Hazard Potential

Significant

Nid Height

18
       
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.