Eagle Lake Dam Reservoir Report

Last Updated: December 19, 2025

Eagle Lake Dam, located in Holden, Massachusetts, was completed in 1938 and serves as a vital recreational resource for the community.


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Summary

With a primary purpose of recreation, the dam stands at a height of 20 feet and has a normal storage capacity of 680 acre-feet. The dam, classified as a masonry structure with a buttress core type, spans 222 feet in length and impounds ASNEBUMSKIT BROOK, providing an 80-acre surface area for outdoor activities such as fishing, boating, and hiking.

Managed by a private owner, the Eagle Lake Dam is regulated by the DEPARTMENT OF CONSERVATION AND RECREATION in Massachusetts. The dam's hazard potential is rated as high, although its condition assessment is deemed fair as of the last inspection in November 2017. The dam has an inspection frequency of every two years, and emergency action plans are in place to address any potential risks associated with its operation.

Despite its moderate risk assessment, the Eagle Lake Dam continues to be a popular destination for water resource and climate enthusiasts seeking outdoor recreation opportunities in the Worcester County area. With its scenic surroundings and abundant wildlife, the dam serves as a treasured landmark for both residents and visitors alike, highlighting the importance of responsible stewardship and maintenance of our water resources for future generations to enjoy.

Year Completed

1938

Dam Length

222

Dam Height

20

River Or Stream

ASNEBUMSKIT BROOK

Primary Dam Type

Masonry

Surface Area

80

Hydraulic Height

12

Drainage Area

10.6

Nid Storage

800

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

20
       
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.