Powwow Pond Dam Reservoir Report

Last Updated: December 16, 2025

Powwow Pond Dam, also known as Trickling Falls Dam, is a state-owned structure located in East Kingston, New Hampshire.


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Summary

Completed in 1940, this recreational dam along the Powwow River stands at 12 feet high and spans 250 feet in length. With a storage capacity of 3,761 acre-feet and a surface area of 353 acres, it serves as a popular destination for outdoor enthusiasts seeking water-based activities.

Managed by the New Hampshire Department of Environmental Services Dam Bureau, Powwow Pond Dam is classified as an earth dam with a significant hazard potential and fair condition assessment. Despite its age, the dam has undergone inspections every 4 years, with the last assessment conducted in September 2019. While the risk assessment for this structure is moderate, there are currently no emergency action plans in place, highlighting the need for continued monitoring and maintenance to ensure the safety of surrounding communities in the event of a dam failure.

As a vital component of the local ecosystem and recreational landscape, Powwow Pond Dam plays a crucial role in water resource management in Rockingham County, New Hampshire. Its presence not only provides opportunities for outdoor recreation but also underscores the importance of sustainable dam infrastructure practices to mitigate potential risks and safeguard the surrounding environment from the impacts of climate change.

Year Completed

1940

Dam Length

250

Dam Height

12

River Or Stream

POWWOW RIVER

Primary Dam Type

Earth

Surface Area

353

Drainage Area

29.4

Nid Storage

3761

Hazard Potential

Significant

Foundations

Unlisted/Unknown

Nid Height

12
       
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.