Somerset Reservoir Dam Reservoir Report
Last Updated: December 20, 2025
Somerset Reservoir Dam, located in Somerset, Massachusetts, stands as a vital structure for water supply purposes, serving as a barrier on Labor in Vain Brook.
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Summary
Completed in 1965, this concrete dam boasts a height of 48 feet and a hydraulic height of 45 feet, with a storage capacity of 3,032 acre-feet. The dam's primary purpose is to ensure a reliable water source for the surrounding area, with a normal storage capacity of 2,324 acre-feet and a surface area of 0.26 square miles.
Managed by the local government and regulated by the Department of Conservation and Recreation, Somerset Reservoir Dam is subject to regular inspections and enforcement measures to maintain its structural integrity. Despite being classified as having a high hazard potential, the dam's condition assessment in 2016 rated it as fair. Additionally, the dam is equipped with an uncontrolled spillway type and has a moderate risk assessment level. With its critical role in water resource management and climate resilience, Somerset Reservoir Dam remains a key infrastructure for the community it serves.
In the event of emergencies, the dam's Emergency Action Plan (EAP) is periodically reviewed and updated to meet guidelines, ensuring that appropriate risk management measures are in place. With a hazard potential of high and a risk assessment of moderate, the authorities are committed to safeguarding the dam and the surrounding area from potential threats. As a notable feature in the water resource landscape, Somerset Reservoir Dam exemplifies the importance of proactive maintenance and risk mitigation strategies in safeguarding vital infrastructure amidst changing climate conditions.
Year Completed |
1965 |
Dam Length |
6700 |
Dam Height |
48 |
River Or Stream |
LABOR IN VAIN BROOK |
Primary Dam Type |
Concrete |
Surface Area |
0.26 |
Hydraulic Height |
45 |
Drainage Area |
1.6 |
Nid Storage |
3032 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
48 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Somerset Reservoir Dam
Boat Ramp Road Dighton