Mattapoisett River Dam

Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateMassachusetts
CountyPlymouth
Nearest CityMattapoisett
River/StreamMattapoisett River
Coordinates41.65702, -70.83429

Physical Characteristics

Dam TypeEarth
NID Height10 ft
Dam Length250 ft
Year Completed1898 (128 years old)

Storage & Hydraulics

NID Storage35 acre-ft
Max Storage35 acre-ft
Normal Storage20 acre-ft
Surface Area2 acres
Drainage Area24 sq mi
Spillway TypeUncontrolled

Ownership & Safety

OwnerTown of Mattapoisett
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection04/22/2021
Emergency Action PlanYes

Identifiers

NID IDMA02447
Federal IDMA02447
More InfoState Dam Safety Program

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