Wyre - Wynd Reservoir Report

Last Updated: December 5, 2025

Wyre - Wynd, also known as Aspinook Pond Dam, is a private masonry dam located in Jewett City, Connecticut.


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Summary

Built in 1913 for hydroelectric and recreational purposes, this dam stands at a height of 20.7 feet and has a length of 483 feet. With a storage capacity of 2900 acre-feet and a drainage area of 650 square miles, Wyre - Wynd plays a crucial role in managing water resources and generating clean energy in the region.

Operated under the jurisdiction of the Federal Energy Regulatory Commission (FERC), Wyre - Wynd has a low hazard potential and is considered to have a moderate risk level. Despite its age, the dam's condition assessment is not available, and it has not been inspected since July 2018. While it does not have a state regulatory agency overseeing it, the dam's primary purpose remains intact, serving as a key infrastructure for water management and recreation along the Quinebaug River.

With a spillway width of 483 feet and a maximum discharge capacity of 36,400 cubic feet per second, Wyre - Wynd is equipped to handle fluctuations in water levels and mitigate potential risks. As water resource and climate enthusiasts, understanding the significance of dams like Wyre - Wynd in balancing environmental conservation and energy production is vital for sustainable water management practices in the region.

Year Completed

1913

Dam Length

483

Dam Height

20.7

River Or Stream

Quinebaug River

Primary Dam Type

Masonry

Surface Area

333

Drainage Area

650

Nid Storage

2900

Hazard Potential

Low

Nid Height

21
       
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.