Vistron Dam

Vistron Dam is a stone dam located in Hampshire County, Massachusetts. It carries a Significant hazard potential classification and has a fair condition assessment.

About Vistron Dam

Vistron Dam is a dam in Hampshire, Massachusetts. The dam is owned by Nonotuck Mill, Llc (private). It impounds the Mill River near Northampton.

The dam stands 25 feet tall and stretches 195 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 38 acre-feet, and collects water from a drainage area of 51 square miles.

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. An emergency action plan is in place for this dam. The most recent inspection on record was 08/17/2022.

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Significant HazardFair ConditionEmergency Action Plan: Yes

Location

StateMassachusetts
CountyHampshire
Nearest CityNorthampton
River/StreamMill River
Coordinates42.33007, -72.67768

Physical Characteristics

Dam TypeStone
NID Height25 ft
Dam Length195 ft

Storage & Hydraulics

NID Storage38 acre-ft
Max Storage38 acre-ft
Normal Storage11 acre-ft
Surface Area5 acres
Drainage Area51 sq mi
Max Discharge10,500 cfs
Spillway TypeUncontrolled

Ownership & Safety

OwnerNonotuck Mill, LLC
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection08/17/2022
Emergency Action PlanYes

Identifiers

NID IDMA00759
Federal IDMA00759
More InfoState Dam Safety Program

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