Big Bearhole Pond Dam

Big Bearhole Pond Dam is an earth dam located in Bristol County, Massachusetts, built in 1920. It carries a High hazard potential classification and has a satisfactory condition assessment.

About Big Bearhole Pond Dam

The primary purpose of Big Bearhole Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Ma Department Of Conservation & Recreation (state). It impounds the Thompson Brook near Taunton.

The dam stands 20 feet tall and stretches 250 feet across, creates a reservoir covering 41 acres, has a maximum storage capacity of 522 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1920, 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 04/08/2024.

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 Massachusetts 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

StateMassachusetts
CountyBristol
Nearest CityTaunton
River/StreamThompson Brook
Coordinates41.86542, -70.98807

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Length250 ft
Year Completed1920 (106 years old)

Storage & Hydraulics

NID Storage522 acre-ft
Max Storage522 acre-ft
Normal Storage264 acre-ft
Surface Area41 acres
Drainage Area1 sq mi
Max Discharge623 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerMA Department of Conservation & Recreation
Owner TypeState
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection04/08/2024
Emergency Action PlanYes

Identifiers

NID IDMA00764
Federal IDMA00764
More InfoState Dam Safety Program

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