Thurston Pond Dam

Thurston Pond Dam is an earth dam located in New Haven County, Connecticut, built in 1890. It carries a High hazard potential classification and has a satisfactory condition assessment.

About Thurston Pond Dam

The primary purpose of Thurston Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Borough Of Naugatuck (local government). It impounds the Long Meadow Pond Brook near Naugatuck.

The dam stands 20 feet tall and stretches 510 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 45 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1890, the structure is over a century old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 11/20/2023.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Connecticut dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateConnecticut
CountyNew Haven
Nearest CityNaugatuck
River/StreamLong Meadow Pond Brook
Coordinates41.48855, -73.06846

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Height20 ft
Dam Length510 ft
Year Completed1890 (136 years old)

Storage & Hydraulics

NID Storage45 acre-ft
Max Storage45 acre-ft
Normal Storage29 acre-ft
Surface Area3 acres
Drainage Area7 sq mi
Max Discharge2,400 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerBorough of Naugatuck
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection11/20/2023
Emergency Action PlanYes

Identifiers

NID IDCT00129
Federal IDCT00129
More InfoState Dam Safety Program

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