Sylvestri Pond Dam Reservoir Report

Last Updated: December 10, 2025

Sylvestri Pond Dam, located in Dudley, Massachusetts, is a private dam with a primary purpose of recreation.


°F

°F

mph

Wind

%

Humidity

Summary

This Earth-type dam has a height of 6.5 feet and is situated on an unnamed tributary of the Quinebaug River. The dam has a storage capacity of 145 acre-feet and a surface area of 30 acres, making it a significant water resource for the area.

The dam is regulated by the Department of Conservation and Recreation in Massachusetts and is inspected regularly to ensure its safety and compliance with state regulations. The hazard potential of the dam is rated as significant, although its condition assessment is currently fair. Despite these moderate risks, the dam continues to provide recreational opportunities for the local community and remains an important feature in the water resource and climate landscape of Worcester County.

Overall, Sylvestri Pond Dam serves as a vital water source for the area while also offering recreational benefits to residents and visitors. Its management and maintenance are closely monitored to ensure the safety of the surrounding area and to mitigate any potential risks. As a private dam with state jurisdiction, it plays a crucial role in water resource management and climate resilience efforts in the region.

Dam Length

200

Dam Height

6.5

River Or Stream

UNNAMED TRIBUTARY OF QUINEBAUG RIVER

Primary Dam Type

Earth

Surface Area

30

Hydraulic Height

4

Drainage Area

0.82

Nid Storage

145

Hazard Potential

Significant

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.