United New Milford Reservoir #2 Dam Reservoir Report

Last Updated: December 5, 2025

United New Milford Reservoir #2 Dam, located in New Milford, Connecticut, serves as a crucial water supply infrastructure managed by a public utility.


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Summary

This masonry dam, standing at a height of 46 feet and spanning a length of 210 feet, holds a storage capacity of 43 acre-feet and is primarily designed for water supply purposes, drawing water from the Cross Brook. Despite being categorized as a low hazard potential structure, the dam's condition assessment is currently listed as "Not Rated," suggesting a need for further evaluation.

This historic dam, situated in Litchfield County, Connecticut, falls under the regulatory oversight of the state's Department of Energy and Environmental Protection (DEEP), ensuring that it meets state permitting, inspection, and enforcement requirements. While the last recorded inspection dates back to 1990, the dam's emergency action plan (EAP) and risk management measures are currently not available, prompting the need for updated guidelines and assessments to enhance its resilience and preparedness for potential hazards. With a spillway width of 40 feet and a drainage area of 0.84 square miles, the United New Milford Reservoir #2 Dam stands as a vital component of the region's water resource infrastructure.

As climate change and extreme weather events continue to pose challenges to water resources, the United New Milford Reservoir #2 Dam represents a critical piece of infrastructure in safeguarding water supply for the community. With its strategic location and historical significance, ensuring the dam's structural integrity and emergency preparedness is essential in mitigating potential risks and maintaining a resilient water supply system for the future. As efforts are made to update and assess the dam's condition, its role in water resource management and climate adaptation remains paramount for sustainable development and resilience in the face of changing environmental conditions.

Dam Length

210

Dam Height

46

River Or Stream

CROSS BROOK

Primary Dam Type

Masonry

Surface Area

2

Drainage Area

0.84

Nid Storage

43

Hazard Potential

Low

Nid Height

46
       
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.