Powder Mill

Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateNew Hampshire
CountyHillsborough
Nearest CityBennington
River/StreamContoocook River
Coordinates42.99270, -71.92420

Physical Characteristics

Dam TypeConcrete
NID Height21 ft
Dam Height21 ft
Dam Length366 ft
Year Completed1924 (102 years old)

Storage & Hydraulics

NID Storage8,600 acre-ft
Max Storage8,600 acre-ft
Normal Storage2,400 acre-ft
Surface Area435 acres
Drainage Area184 sq mi
Max Discharge18,200 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeHydroelectric
OwnerMonadnock Paper Mills, Inc.
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection06/15/2017
Emergency Action PlanNot Required

Identifiers

NID IDNH00248
Federal IDNH00248
More InfoState Dam Safety Program

Nearby Dams