Mountain Pond South Dam

Mountain Pond South Dam is an earth dam located in Belknap County, New Hampshire, built in 1913. It carries a Low hazard potential classification and has a fair condition assessment.

About Mountain Pond South Dam

The primary purpose of Mountain Pond South 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 New Hampton Village Precinct (local government). It impounds the Tr Pemigewasset River near Sanbornton.

The dam stands 7 feet tall and stretches 87 feet across, creates a reservoir covering 24 acres, has a maximum storage capacity of 137 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1913, 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 09/13/2019.

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Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StateNew Hampshire
CountyBelknap
Nearest CitySanbornton
River/StreamTr Pemigewasset River
Coordinates43.57470, -71.63800

Physical Characteristics

Dam TypeEarth
NID Height7 ft
Dam Height7 ft
Dam Length87 ft
Year Completed1913 (113 years old)

Storage & Hydraulics

NID Storage137 acre-ft
Max Storage137 acre-ft
Normal Storage100 acre-ft
Surface Area24 acres
Drainage Area0 sq mi
Max Discharge168 cfs

Ownership & Safety

PurposeWater Supply
OwnerNEW HAMPTON VILLAGE PRECINCT
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection09/13/2019
Emergency Action PlanNot Required

Identifiers

NID IDNH00861
Federal IDNH00861
More InfoState Dam Safety Program

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