Gregg Lake Dam

High HazardPoor ConditionEmergency Action Plan: Yes

Location

StateNew Hampshire
CountyHillsborough
Nearest CityANTRIM
River/StreamGREAT BROOK
Coordinates43.03910, -71.97860

Physical Characteristics

Dam TypeConcrete
NID Height12 ft
Dam Height12 ft
Dam Length210 ft
Year Completed1908 (118 years old)

Storage & Hydraulics

NID Storage1,370 acre-ft
Max Storage1,370 acre-ft
Normal Storage1,000 acre-ft
Surface Area201 acres
Drainage Area4 sq mi
Max Discharge1,566 cfs

Ownership & Safety

PurposeRecreation
OwnerTOWN OF ANTRIM
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentPoor
Last Inspection09/01/2021
Emergency Action PlanYes

Identifiers

NID IDNH00056
Federal IDNH00056
More InfoState Dam Safety Program

Nearby Dams

Antrim Sewage Lagoons Dam 2.4 mi Significant Willard Pond Dam 2.5 mi Low Steels Pond 2.9 mi Significant Evas Marsh Dam 3.0 mi Low Moose Brook Dam 3.1 mi Low Monadnock Paper Indust Lag Dam 3.2 mi Significant Paper Mill 3.5 mi Low Pierce 3.7 mi Low Wildlife Pond Dam 3.7 mi Undetermined Monadnock 3.8 mi Low