Great Pond Upper Reservoir Dam

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateMassachusetts
CountyNorfolk
Nearest CityBraintree
River/StreamNorroway Brook
Coordinates42.19603, -71.04135

Physical Characteristics

Dam TypeEarth
NID Height18 ft
Dam Length2,775 ft
Year Completed1942 (84 years old)

Storage & Hydraulics

NID Storage2,283 acre-ft
Max Storage2,283 acre-ft
Normal Storage1,855 acre-ft
Surface Area200 acres
Drainage Area5 sq mi
Max Discharge631 cfs
Spillway TypeUncontrolled

Ownership & Safety

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

Identifiers

NID IDMA00823
Federal IDMA00823
More InfoState Dam Safety Program

Nearby Dams

Great Pond Dam 0.7 mi High Braintree Dam 2.1 mi High Blue Hills Reservoir Dam 2.3 mi High Ponkapoag Pond Dam 3.3 mi Significant Smelt Brook Dam 3.5 mi High Lake Holbrook Dam 3.6 mi Significant Pine Tree Brook Pl-566 Flood Control Dam 3.7 mi Significant Weymouth Great Pond Dam 4.2 mi Significant Reservoir Pond Dam 5.1 mi Significant Neponset River Dam - Lower Mills 5.3 mi Significant