Pentucket Pond Outlet Dam Reservoir Report

Last Updated: December 18, 2025

Located in Georgetown, Massachusetts, the Pentucket Pond Outlet Dam is a crucial structure managed by the Department of Conservation and Recreation.


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Summary

This earth dam serves primarily for recreational purposes, providing a serene backdrop for activities along the Parker River. With a height of 9.35 feet and a storage capacity of 620 acre-feet, the dam plays a significant role in regulating water levels in the area, ensuring a balance between conservation and recreation.

Despite its satisfactory condition assessment in 2016, the Pentucket Pond Outlet Dam poses a significant hazard potential due to its uncontrolled spillway type. Regular inspections are conducted every 5 years to assess its structural integrity and potential risks. The dam's moderate risk assessment indicates the importance of ongoing risk management measures to prevent any potential emergencies and ensure the safety of surrounding communities.

Enthusiasts of water resources and climate will find the Pentucket Pond Outlet Dam to be a fascinating structure that highlights the intersection of environmental conservation and recreational activities. Its location along the Parker River, combined with its significant storage capacity and potential risks, make it a noteworthy site for further study and monitoring in the realm of water resource management and climate resilience.

Dam Length

197

Dam Height

9.35

River Or Stream

PARKER RIVER

Primary Dam Type

Earth

Surface Area

0.14

Hydraulic Height

4

Drainage Area

7.6

Nid Storage

620

Hazard Potential

Significant

Foundations

Unlisted/Unknown

Nid Height

9
       
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.