Upper Stoneville Reservoir Dam Reservoir Report

Last Updated: December 12, 2025

Located in Auburn, Worcester County, Massachusetts, the Upper Stoneville Reservoir Dam is a rockfill structure with a height of 27.3 feet and a hydraulic height of 22.5 feet.


°F

°F

mph

Wind

%

Humidity

Summary

The dam, associated with the Lower Stoneville Pond tributary to Kettle Brook, serves primarily for recreational purposes, providing a surface area of 64 acres and a normal storage capacity of 430 acre-feet.

Managed by the Department of Conservation and Recreation, the dam is regulated, permitted, inspected, and enforced by the state of Massachusetts. With a hazard potential rated as high, the dam's condition was assessed as satisfactory during the last inspection in October 2016. Despite the moderate risk assessment, emergency action plans and risk management measures were not readily available for the dam as of the last update in 2007.

Enthusiasts of water resources and climate in the region will find the Upper Stoneville Reservoir Dam to be an essential component of the local landscape, providing both recreational opportunities and potential risks that require careful monitoring and management to ensure the safety and integrity of the surrounding communities and environment.

Dam Length

525

Dam Height

27.3

River Or Stream

LOWER STONEVILLE POND TRIBUTARY TO KETTLE BROOK

Primary Dam Type

Rockfill

Surface Area

64

Hydraulic Height

22.5

Drainage Area

2.8

Nid Storage

1050

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

27
       
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.