Turner Pond Dam Reservoir Report

Last Updated: December 19, 2025

Turner Pond Dam, located in Walpole, Massachusetts, was completed in 1800 and serves as a recreational area for locals and visitors alike.


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Summary

The dam, standing at a height of 10 feet with a hydraulic height of 7 feet, creates a storage capacity of 112 acre-feet and covers an area of 18.2 acres. The primary purpose of the dam is for recreation, offering a serene environment for activities such as fishing, boating, and picnicking.

Managed by the Department of Conservation and Recreation, the Turner Pond Dam is regulated by the state of Massachusetts and undergoes regular inspections to ensure its structural integrity. With a significant hazard potential, the dam has been assessed as satisfactory in condition, with a moderate risk classification. The dam features an uncontrolled spillway type and is constructed primarily with earth and buttress core types, making it essential for water resource and climate enthusiasts to monitor its risk management measures and emergency preparedness.

Despite its historical significance and recreational value, the Turner Pond Dam poses a potential risk to surrounding areas in the event of a failure. As such, continued monitoring and maintenance are crucial to ensure the safety of the community and the preservation of the dam for future generations to enjoy. Water resource and climate enthusiasts should stay informed about the dam's condition assessments, emergency action plans, and risk management measures to contribute to the protection and sustainability of this vital infrastructure.

Year Completed

1800

Dam Length

470

Dam Height

10

River Or Stream

MINE BROOK

Primary Dam Type

Earth

Surface Area

18.2

Hydraulic Height

7

Drainage Area

7

Nid Storage

112

Hazard Potential

Significant

Foundations

Unlisted/Unknown

Nid Height

10
       
Seasonal Comparison

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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.