Southington Reservoir #3 Dam Reservoir Report

Last Updated: December 5, 2025

Located in Southington, Connecticut, Southington Reservoir #3 Dam is a vital water resource managed by local government authorities.


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Summary

This earth dam stands at 26 feet tall and stretches 550 feet in length, providing a storage capacity of 250 acre-feet for water supply purposes. The dam is situated on a tributary to Judd Brook and is regulated by the Connecticut Department of Energy and Environmental Protection (DEEP), ensuring regular inspections and enforcement of safety measures.

With a significant hazard potential but a satisfactory condition assessment as of October 2018, Southington Reservoir #3 Dam plays a crucial role in maintaining a stable water supply for the surrounding area. The dam's spillway, with a width of 20 feet, helps manage water flow during times of excess discharge. Regular inspections every five years help ensure the dam's integrity and safety, highlighting the importance of proper maintenance and oversight for critical infrastructure like Southington Reservoir #3 Dam.

As a key component of the local water supply system, Southington Reservoir #3 Dam serves as a lifeline for the community, providing essential water resources for residential, agricultural, and industrial needs. Its location in Hartford County, Connecticut, underscores the dam's strategic importance in sustaining a reliable water source for the region. Continued monitoring and adherence to regulatory guidelines will be crucial in safeguarding the dam's functionality and ensuring the long-term resilience of Southington's water infrastructure.

Dam Length

550

Dam Height

26

River Or Stream

TRIBUTARY TO JUDD BROOK

Primary Dam Type

Earth

Surface Area

17

Drainage Area

0.18

Nid Storage

250

Hazard Potential

Significant

Nid Height

26
       
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.