Mill Pond Dam Reservoir Report

Last Updated: December 10, 2025

Mill Pond Dam, located in Worcester, Massachusetts, is a privately-owned structure regulated by the Department of Conservation and Recreation.


°F

°F

mph

Wind

%

Humidity

Summary

This dam, standing at a height of 12 feet and with a hydraulic height of 10 feet, serves the primary purpose of water resource management on the Quinebaug River Reservoir. With a storage capacity of 72 acre-feet, the dam's spillway type is uncontrolled, presenting a significant hazard potential.

Despite its fair condition assessment as of December 2014, Mill Pond Dam has a moderate risk assessment rating. The dam has not undergone any modifications in recent years and is subject to inspections every 5 years. The surrounding area, with a drainage area of 67 square miles, may be at risk in the event of a breach or failure of the dam. It is crucial for water resource and climate enthusiasts to stay informed about the maintenance and management of Mill Pond Dam to ensure the safety and sustainability of the local ecosystem and community.

Dam Length

30

Dam Height

12

River Or Stream

QUINEBAUG RIVER RESERVOIR

Primary Dam Type

Earth

Surface Area

1.7

Hydraulic Height

10

Drainage Area

67

Nid Storage

72

Hazard Potential

Significant

Foundations

Unlisted/Unknown

Nid Height

12
       
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.