Weymouth Great Pond Dam

Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateMassachusetts
CountyNorfolk
Nearest CityWeymouth
River/StreamTributary to Mill River
Coordinates42.16964, -70.96677

Physical Characteristics

Dam TypeEarth
NID Height10 ft
Dam Length200 ft
Year Completed1884 (142 years old)

Storage & Hydraulics

NID Storage1,420 acre-ft
Max Storage1,420 acre-ft
Normal Storage493 acre-ft
Surface Area358 acres
Drainage Area2 sq mi
Max Discharge132 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeWater Supply
OwnerTown of Weymouth
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection05/13/2021
Emergency Action PlanYes

Identifiers

NID IDMA00777
Federal IDMA00777
More InfoState Dam Safety Program

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