Somersworth

Significant HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateNew Hampshire
CountyStrafford
Nearest CitySomersworth
River/StreamSalmon Falls River
Coordinates43.26480, -70.86370

Physical Characteristics

Dam TypeMasonry
NID Height17 ft
Dam Height17 ft
Dam Length400 ft
Year Completed1929 (97 years old)

Storage & Hydraulics

NID Storage377 acre-ft
Max Storage377 acre-ft
Normal Storage377 acre-ft
Surface Area55 acres
Drainage Area218 sq mi
Max Discharge8,000 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeHydroelectric
OwnerAclara Meters LLC
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection05/19/2022
Emergency Action PlanNot Required

Identifiers

NID IDNH00127
Federal IDNH00127
More InfoState Dam Safety Program

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