Paper Mill

Paper Mill is a concrete dam located in Hillsborough, New Hampshire, built in 1922. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Paper Mill

The primary purpose of Paper Mill is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Monadnock Paper Mills, Inc. (private). It impounds the Contoocook River near Bennington.

The dam stands 9 feet tall and stretches 280 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 50 acre-feet, and collects water from a drainage area of 191 square miles. Completed in 1922, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 06/15/2017.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateNew Hampshire
CountyHillsborough
Nearest CityBennington
River/StreamContoocook River
Coordinates43.00570, -71.92670

Physical Characteristics

Dam TypeConcrete
NID Height9 ft
Dam Height9 ft
Dam Length280 ft
Year Completed1922 (104 years old)

Storage & Hydraulics

NID Storage50 acre-ft
Max Storage50 acre-ft
Normal Storage25 acre-ft
Surface Area5 acres
Drainage Area191 sq mi
Max Discharge13,400 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 IDNH00251
Federal IDNH00251
More InfoState Dam Safety Program

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