Assawompset Pond Dam

Assawompset Pond Dam is an earth dam located in Plymouth County, Massachusetts, built in 1894. It carries a Low hazard potential classification and has a poor condition assessment.

About Assawompset Pond Dam

The primary purpose of Assawompset 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 City Of Taunton (local government). It impounds the Nemasket River near Lakeville.

The dam stands 7 feet tall and stretches 2,850 feet across, creates a reservoir covering 5,600 acres, has a maximum storage capacity of 62,000 acre-feet, and collects water from a drainage area of 38 square miles. Completed in 1894, the structure is over a century old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected 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 10/06/2021.

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Low HazardPoor ConditionEmergency Action Plan: Not Required

Location

StateMassachusetts
CountyPlymouth
Nearest CityLakeville
River/StreamNemasket River
Coordinates41.85223, -70.91879

Physical Characteristics

Dam TypeEarth
NID Height7 ft
Dam Length2,850 ft
Year Completed1894 (132 years old)

Storage & Hydraulics

NID Storage62,000 acre-ft
Max Storage62,000 acre-ft
Normal Storage56,000 acre-ft
Surface Area5,600 acres
Drainage Area38 sq mi
Max Discharge510 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeWater Supply
OwnerCity of Taunton
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentPoor
Last Inspection10/06/2021
Emergency Action PlanNot Required

Identifiers

NID IDMA03154
Federal IDMA03154
More InfoState Dam Safety Program

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