Ipswich Mills Dam

Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StateMassachusetts
CountyEssex
Nearest CityIpswich
River/StreamIpswich River
Coordinates42.67767, -70.83777

Physical Characteristics

NID Height11 ft
Dam Length180 ft
Year Completed1637 (389 years old)

Storage & Hydraulics

NID Storage300 acre-ft
Max Storage300 acre-ft
Normal Storage200 acre-ft
Surface Area20 acres
Drainage Area149 sq mi
Max Discharge3,900 cfs
Spillway TypeUncontrolled

Ownership & Safety

OwnerTown of Ipswich
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection09/04/2020
Emergency Action PlanNot Required

Identifiers

NID IDMA00231
Federal IDMA00231
More InfoState Dam Safety Program

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