Abbott's Pond Dam Reservoir Report

Last Updated: December 5, 2025

Abbott's Pond Dam, located in Pomfret, Connecticut, is a private recreational dam constructed in 1960 by the USDA NRCS.


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Summary

With a significant hazard potential and a satisfactory condition assessment, this earth dam stands at a height of 33.5 feet and spans a length of 440 feet. The dam's primary purpose is for recreation, offering a serene surface area of 26 acres with a maximum storage capacity of 382 acre-feet.

Managed by the Connecticut Department of Energy and Environmental Protection (DEEP), Abbott's Pond Dam is state-regulated and regularly inspected to ensure its safety and compliance with regulations. Despite its uncontrolled spillway and outlet gates, the dam's risk assessment is moderate, indicating potential hazards that require ongoing monitoring and management. The surrounding area, part of the Mashamoquet Brook Tributary, benefits from this dam's presence, providing opportunities for outdoor activities and enhancing the local ecosystem.

Abbott's Pond Dam's historical significance and natural beauty make it a valuable asset for water resource and climate enthusiasts. As a focal point for recreation and conservation efforts in Windham County, this dam serves as a reminder of the delicate balance between human enjoyment and environmental preservation. With proper maintenance and risk management measures in place, Abbott's Pond Dam continues to be a cherished resource for the community and a symbol of sustainable water management practices.

Year Completed

1960

Dam Length

440

Dam Height

33.5

River Or Stream

MASHAMOQUET BR TRIB

Primary Dam Type

Earth

Surface Area

26

Drainage Area

0.57

Nid Storage

382

Outlet Gates

Uncontrolled

Hazard Potential

Significant

Foundations

Soil

Nid Height

34
       
Seasonal Comparison

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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.