Hemlock Gorge Spillway Dike

Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateMassachusetts
CountyMiddlesex
Nearest CityWellesley
River/StreamCharles River
Coordinates42.31644, -71.22748

Physical Characteristics

Dam TypeConcrete
NID Height15 ft
Dam Length62 ft

Storage & Hydraulics

NID Storage29 acre-ft
Max Storage29 acre-ft
Normal Storage18 acre-ft
Surface Area2 acres
Drainage Area211 sq mi
Max Discharge450 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerMA Department of Conservation & Recreation
Owner TypeState
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection11/10/2022
Emergency Action PlanYes

Identifiers

NID IDMA02979
Federal IDMA02979
More InfoState Dam Safety Program

Nearby Dams

Metropolitan Circular Dam 0.0 mi Significant Silk Mill Dam 0.2 mi Low Wellesley Avenue Dam 1.5 mi Low Cordingly Dam 1.5 mi Significant Newton Lower Falls Dam 1.7 mi Significant Rosemary Lake Dam 2.0 mi High Bulloughs Pond Dam 2.1 mi Significant Waban Hill Reservoir Dam 3.0 mi Low Stony Brook Reservoir Dam 3.3 mi High Norumbega Reservoir East Dike 3.5 mi High