Grist Mill Pond Dam

High HazardPoor ConditionEmergency Action Plan: Yes

Location

StateNew Hampshire
CountyGrafton
Nearest CityASHLAND
River/StreamSQUAM RIVER
Coordinates43.69500, -71.62900

Physical Characteristics

Dam TypeConcrete
NID Height16 ft
Dam Height16 ft
Dam Length135 ft
Year Completed1924 (102 years old)

Storage & Hydraulics

NID Storage175 acre-ft
Max Storage175 acre-ft
Normal Storage125 acre-ft
Surface Area25 acres
Drainage Area58 sq mi
Max Discharge1,755 cfs

Ownership & Safety

PurposeHydroelectric
OwnerSQUAM RIVER HYDRO LLC
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentPoor
Last Inspection06/16/2021
Emergency Action PlanYes

Identifiers

NID IDNH00060
Federal IDNH00060
More InfoState Dam Safety Program

Nearby Dams

Squam Lake 0.7 mi High Ashland Sewage Lagoon Dam 1.0 mi Significant Jackson Pond Dam 2.1 mi Significant Hawkins Pond Dam 3.3 mi Significant White Oak Pond Dam 4.0 mi Low Wildlife Pond Dam 5.6 mi Low Dickerman Pond Dam 6.2 mi Significant New Hampton Village Prct Ww Lagoon 6.5 mi Significant Gordon Hill Water Supply Dam 6.7 mi Significant Lake Waukewan Dam 7.0 mi High