Fullam Pond Dam Reservoir Report

Last Updated: December 13, 2025

Fullam Pond Dam, located in Chesterfield, New Hampshire, is a state-regulated structure owned by the state with a primary purpose of recreation.


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Summary

This Earth-type dam stands at 18 feet in height and spans 130 feet in length, providing a storage capacity of 175 acre-feet. The dam, situated on Broad Brook, has a low hazard potential and a moderate risk assessment rating, making it an important asset for water resource and climate enthusiasts in the area.

Managed by the NHDES Dam Bureau, Fullam Pond Dam has not been rated for its condition assessment and lacks certain emergency preparedness measures such as an Emergency Action Plan (EAP). Despite this, the dam has a regular inspection frequency of 6 years, with the last inspection conducted in October 2020. The structure poses a low risk to downstream communities, with a maximum discharge of 1271 cubic feet per second and a normal storage capacity of 104 acre-feet, ensuring the safety of the surrounding area.

With its picturesque location and recreational significance, Fullam Pond Dam serves as a vital part of the local landscape in Cheshire County. While the dam's risk assessment remains moderate, its operation and maintenance by state authorities ensure the safety and integrity of this important water resource for both visitors and the environment. For water resource and climate enthusiasts, Fullam Pond Dam presents a unique opportunity to appreciate the intersection of human infrastructure with natural landscapes in the state of New Hampshire.

Dam Length

130

Dam Height

18

River Or Stream

BROAD BROOK

Primary Dam Type

Earth

Surface Area

31.4

Drainage Area

6.6

Nid Storage

175

Hazard Potential

Low

Foundations

Unlisted/Unknown

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.