Hollingsworth & Vose Company Dam

Hollingsworth & Vose Company Dam is an earth dam located in Middlesex County, Massachusetts, built in 1900. It carries a Low hazard potential classification and has a fair condition assessment.

About Hollingsworth & Vose Company Dam

Hollingsworth & Vose Company Dam is a dam in Middlesex, Massachusetts. The dam is owned by Hollingsworth & Vose Company (private). It impounds the Squannacook River near Groton.

The dam stands 17 feet tall and stretches 150 feet across, creates a reservoir covering 21 acres, has a maximum storage capacity of 350 acre-feet, and collects water from a drainage area of 68 square miles. Completed in 1900, the structure is over a century old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected 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 11/07/2014. That was over 11 years ago.

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Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StateMassachusetts
CountyMiddlesex
Nearest CityGroton
River/StreamSquannacook River
Coordinates42.61245, -71.63517

Physical Characteristics

Dam TypeEarth
NID Height17 ft
Dam Length150 ft
Year Completed1900 (126 years old)

Storage & Hydraulics

NID Storage350 acre-ft
Max Storage350 acre-ft
Normal Storage156 acre-ft
Surface Area21 acres
Drainage Area68 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeOther
OwnerHollingsworth & Vose Company
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection11/07/2014
Emergency Action PlanNot Required

Identifiers

NID IDMA00443
Federal IDMA00443
More InfoState Dam Safety Program

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