New Pond Dam

New Pond Dam is an earth dam located in Bristol County, Massachusetts, built in 1810. It carries a Significant hazard potential classification and has a fair condition assessment.

About New Pond Dam

The primary purpose of New Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Town Of Easton (local government). It impounds the U/s: Poquoanticut Brook; D/s: Mulberry Brook near Easton.

The dam stands 16 feet tall and stretches 860 feet across, creates a reservoir covering 17 acres, has a maximum storage capacity of 343 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1810, the structure is one of the older dams in the region, with over a century and a half of service.

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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 11/17/2022.

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Significant HazardFair ConditionEmergency Action Plan: Yes

Location

StateMassachusetts
CountyBristol
Nearest CityEaston
River/StreamU/s: Poquoanticut Brook; D/s: Mulberry Brook
Coordinates42.02428, -71.13714

Physical Characteristics

Dam TypeEarth
NID Height16 ft
Dam Length860 ft
Year Completed1810 (216 years old)

Storage & Hydraulics

NID Storage343 acre-ft
Max Storage343 acre-ft
Normal Storage119 acre-ft
Surface Area17 acres
Drainage Area5 sq mi
Max Discharge720 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerTown of Easton
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection11/17/2022
Emergency Action PlanYes

Identifiers

NID IDMA00779
Federal IDMA00779
More InfoState Dam Safety Program

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