Brockton Reservoir Dam

Brockton Reservoir Dam is an earth dam located in Norfolk County, Massachusetts, built in 1885. It carries a Significant hazard potential classification and has a fair condition assessment.

About Brockton Reservoir Dam

The primary purpose of Brockton Reservoir 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 Brockton (local government). It impounds the Beaver Brook near Avon.

The dam stands 17 feet tall and stretches 1,800 feet across, creates a reservoir covering 93 acres, has a maximum storage capacity of 1,150 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1885, the structure is over a century old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 02/28/2017.

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Significant HazardFair ConditionEmergency Action Plan: No

Location

StateMassachusetts
CountyNorfolk
Nearest CityAvon
River/StreamBeaver Brook
Coordinates42.11352, -71.05111

Physical Characteristics

Dam TypeEarth
NID Height17 ft
Dam Length1,800 ft
Year Completed1885 (141 years old)

Storage & Hydraulics

NID Storage1,150 acre-ft
Max Storage1,150 acre-ft
Normal Storage890 acre-ft
Surface Area93 acres
Drainage Area3 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeWater Supply
OwnerCity of Brockton
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection02/28/2017
Emergency Action PlanNo

Identifiers

NID IDMA00786
Federal IDMA00786
More InfoState Dam Safety Program

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