Moore Reservoir Report

Last Updated: December 16, 2025

Moore, also known as the Samuel C.


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Summary

Moore Station Dam, is a privately owned structure located in Barnet, VT, along the Connecticut River in New Hampshire. Built in 1957, this concrete dam serves primarily for hydroelectric purposes, with additional functions for recreation. Standing at a height of 149 feet and a length of 2920 feet, Moore has a storage capacity of 223,722 acre-feet and a maximum discharge rate of 211,300 cubic feet per second.

Managed by the NHDES Dam Bureau and regulated by the Federal Energy Regulatory Commission, Moore poses a high hazard potential due to its size and location. Despite undergoing regular inspections, its condition assessment is currently not available, and there are no specific risk management measures in place. With a very high risk rating of 1, Moore's emergency action plan was last revised in December 2018, emphasizing the need for preparedness and adherence to safety guidelines in case of any unforeseen events.

For water resource and climate enthusiasts, Moore presents an intriguing case study in dam infrastructure and risk management. As a significant hydroelectric facility with a substantial storage capacity, its impact on the local ecosystem and surrounding communities is substantial. The high hazard potential and very high risk rating underscore the importance of ongoing monitoring and maintenance to ensure the safety and integrity of Moore and its operations for the future.

Year Completed

1957

Dam Length

2920

Dam Height

149

River Or Stream

Connecticut River

Primary Dam Type

Concrete

Surface Area

3490

Drainage Area

1600

Nid Storage

223722

Outlet Gates

Slide (sluice gate) - 1, Tainter (radial) - 3

Hazard Potential

High

Nid Height

149
       
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.