Massabesic Lake Dam

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateNew Hampshire
CountyHillsborough
Nearest CityMANCHESTER
River/StreamCOHAS BROOK
Coordinates42.96300, -71.39550

Physical Characteristics

Dam TypeConcrete
NID Height30 ft
Dam Height30 ft
Dam Length500 ft
Year Completed1873 (153 years old)

Storage & Hydraulics

NID Storage46,375 acre-ft
Max Storage46,375 acre-ft
Normal Storage2,694 acre-ft
Surface Area2,658 acres
Drainage Area46 sq mi
Max Discharge4,820 cfs

Ownership & Safety

PurposeWater Supply
OwnerMANCHESTER WATER WORKS
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection07/21/2022
Emergency Action PlanYes

Identifiers

NID IDNH00103
Federal IDNH00103
More InfoState Dam Safety Program

Nearby Dams

Cohas Avenue Dam 1.5 mi Low Little Cohas Brook Dam 3.3 mi Low Pine Island Pond Dam 3.6 mi Low Manchester Airport Det Pond Dam 3.7 mi Low Calef Lake Dam 4.0 mi Low Woodbury Estate Pond Dam 4.2 mi Significant Clark Pond East Dam 4.6 mi Low Dorrs Pond Dam 4.6 mi High Goldfish Pond Dam 4.7 mi Low Amoskeag 4.7 mi High