Nabnasset Pond Dam

Significant HazardFair ConditionEmergency Action Plan: Yes

Location

StateMassachusetts
CountyMiddlesex
Nearest CityWestford
River/StreamBlue Brook to Stony Brook
Coordinates42.61993, -71.41744

Physical Characteristics

Dam TypeEarth
NID Height14 ft
Dam Length200 ft
Year Completed1926 (100 years old)

Storage & Hydraulics

NID Storage1,454 acre-ft
Max Storage1,454 acre-ft
Normal Storage961 acre-ft
Surface Area146 acres
Drainage Area1 sq mi
Max Discharge45 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerTown of Westford
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection10/13/2021
Emergency Action PlanYes

Identifiers

NID IDMA01182
Federal IDMA01182
More InfoState Dam Safety Program

Nearby Dams

Brookside Mill Dam 0.8 mi Significant Fletcher Pond Dam 1.0 mi Significant Freeman Lake Dam 1.8 mi Significant Westford Depot Dam 1.8 mi Significant Stony Brook Dam 3.0 mi Significant Upper Flint Pond Dam 3.8 mi Significant Lower Flint Pond Dam 3.9 mi Low Cow Pond Brook Dam 4.2 mi Significant Murray Printing Company Dam 4.5 mi Significant Massapoag Pond Dam 4.8 mi Significant