Hitchcock Lake Dam Reservoir Report

Last Updated: December 5, 2025

Hitchcock Lake Dam, located in Waterbury, Connecticut, was completed in 1868 and serves primarily for recreational purposes.


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Summary

The dam, standing at a height of 13 feet and with a length of 155 feet, holds a storage capacity of 836 acre-feet of water in Hitchcock Lake Brook Lily. The dam has a surface area of 102 acres and drains an area of 0.49 square miles.

Despite being privately owned, the dam is regulated by the Connecticut Department of Energy and Environmental Protection (DEEP), with state permitting, inspection, and enforcement in place. The dam's hazard potential is classified as high, but its condition assessment was rated as fair during the last inspection in December 2019. With a moderate risk level, the dam is equipped with an uncontrolled spillway and a valve for outlet gates. While it has not undergone significant modifications in recent years, the dam remains a key structure for water resource management in the area.

Year Completed

1868

Dam Length

155

Dam Height

13

River Or Stream

HITCHCOCK LAKE BROOK LILY

Primary Dam Type

Masonry

Surface Area

102

Drainage Area

0.49

Nid Storage

836

Outlet Gates

Valve

Hazard Potential

High

Foundations

Rock

Nid Height

13
       
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.