Lake Wickaboag Dam Reservoir Report

Last Updated: December 12, 2025

Lake Wickaboag Dam, located in Worcester County, Massachusetts, was completed in 1900 and stands at a height of 7.2 feet.


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Summary

This earth dam, primarily used for recreational purposes, impounds Sucker Brook to create a reservoir with a storage capacity of 1126 acre-feet. The dam is under the jurisdiction of the Department of Conservation and Recreation in Massachusetts, ensuring regular inspections and enforcement of regulations to maintain its satisfactory condition.

With a low hazard potential and moderate risk assessment rating, Lake Wickaboag Dam poses minimal danger to the surrounding area. Despite its age, the dam has been deemed structurally sound and meets safety guidelines. While the spillway type is uncontrolled, the risk management measures in place help mitigate any potential issues. The dam's location in W. Brookfield makes it a crucial resource for the community, providing both recreational opportunities and essential water storage.

As a vital component of the local water resource infrastructure, Lake Wickaboag Dam plays a significant role in managing the water supply in the region. Its association with Sucker Brook and the New England District highlights its importance in regulating water flow and ensuring water security. Climate and water resource enthusiasts will appreciate the efforts taken by the state regulatory agency to maintain the dam's integrity and safeguard its functionality for both recreational and environmental purposes.

Year Completed

1900

Dam Length

130

Dam Height

7.2

River Or Stream

SUCKER BROOK

Primary Dam Type

Earth

Hydraulic Height

4.2

Drainage Area

17.4

Nid Storage

1126

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.