Great Pond Dam

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateMassachusetts
CountyNorfolk
Nearest CityBraintree
River/StreamNorroway Brook
Coordinates42.20576, -71.04434

Physical Characteristics

Dam TypeEarth
NID Height10 ft
Dam Length2,000 ft
Year Completed1945 (81 years old)

Storage & Hydraulics

NID Storage2,227 acre-ft
Max Storage2,227 acre-ft
Normal Storage1,650 acre-ft
Surface Area206 acres
Drainage Area6 sq mi
Max Discharge467 cfs
Spillway TypeControlled

Ownership & Safety

PurposeWater Supply
OwnerTri-Town Water Board
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection08/18/2020
Emergency Action PlanYes

Identifiers

NID IDMA00828
Federal IDMA00828
More InfoState Dam Safety Program

Nearby Dams

Great Pond Upper Reservoir Dam 0.7 mi High Blue Hills Reservoir Dam 1.6 mi High Braintree Dam 1.8 mi High Pine Tree Brook Pl-566 Flood Control Dam 3.1 mi Significant Ponkapoag Pond Dam 3.3 mi Significant Smelt Brook Dam 3.5 mi High Lake Holbrook Dam 4.2 mi Significant Neponset River Dam - Lower Mills 4.7 mi Significant Weymouth Great Pond Dam 4.7 mi Significant Neponset River Dam - Hyde Park 5.1 mi Significant