Union Pond Dam

Union Pond Dam is a masonry dam located in Fairfield County, Connecticut. It carries a Significant hazard potential classification and has a poor condition assessment.

About Union Pond Dam

The primary purpose of Union Pond Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Selkovits (private). It impounds the East Br Mianus River.

The dam stands 16 feet tall and stretches 98 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 6 acre-feet, and collects water from a drainage area of 2 square miles.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 03/31/2022.

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Significant HazardPoor ConditionEmergency Action Plan: No

Location

StateConnecticut
CountyFairfield
River/StreamEast Br Mianus River
Coordinates41.14930, -73.58831

Physical Characteristics

Dam TypeMasonry
NID Height16 ft
Dam Height16 ft
Dam Length98 ft

Storage & Hydraulics

NID Storage6 acre-ft
Max Storage6 acre-ft
Normal Storage6 acre-ft
Surface Area1 acres
Drainage Area2 sq mi

Ownership & Safety

PurposeWater Supply
OwnerSelkovits
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection03/31/2022
Emergency Action PlanNo

Identifiers

NID IDCT01321
Federal IDCT01321
More InfoState Dam Safety Program

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