Bixby Reservoir Dam Reservoir Report

Last Updated: December 16, 2025

Bixby Reservoir Dam, located in Townsend, Massachusetts, stands as a testament to the importance of water resource management and climate resilience.


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Summary

Built in 1900, this private-owned Earth dam serves primarily for recreational purposes, offering a serene escape for visitors seeking solace in nature. With a height of 6.5 feet and a storage capacity of 96.1 acre-feet, the dam plays a crucial role in regulating the flow of the HILL BROOK TRIBUTARY OF BIXBY BK, ensuring a sustainable water supply for the surrounding region.

Managed by the Department of Conservation and Recreation, the dam has been deemed to have a low hazard potential and is currently in satisfactory condition. Despite its age, Bixby Reservoir Dam continues to fulfill its purpose effectively, providing a safe and enjoyable environment for outdoor activities. With state regulation, inspection, and enforcement in place, the dam remains a reliable structure that contributes to the overall resilience of the water infrastructure in Middlesex County, Massachusetts.

As climate change poses new challenges to water resource management, Bixby Reservoir Dam stands as a symbol of proactive planning and responsible stewardship. With a moderate risk assessment rating and regular inspections, the dam remains a vital component of the local ecosystem, safeguarding against potential floods and ensuring the availability of water for both recreational and ecological needs. Enthusiasts of water resources and climate adaptation can look to Bixby Reservoir Dam as a model of sustainable infrastructure that harmoniously balances human activities with environmental conservation.

Year Completed

1900

Dam Length

80

Dam Height

6.5

River Or Stream

HILL BROOK TRIBUTARY OF BIXBY BK

Primary Dam Type

Earth

Surface Area

0.03

Hydraulic Height

4.5

Drainage Area

1.04

Nid Storage

96.1

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

7
       
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.
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Area Campgrounds