Lake Mattawa South Dam

Significant HazardPoor ConditionEmergency Action Plan: Yes

Location

StateMassachusetts
CountyFranklin
Nearest CityOrange
River/StreamMiddle Branch of Swift River
Coordinates42.56281, -72.31671

Physical Characteristics

Dam TypeEarth
NID Height10 ft
Dam Length287 ft
Year Completed1893 (133 years old)

Storage & Hydraulics

NID Storage928 acre-ft
Max Storage928 acre-ft
Normal Storage438 acre-ft
Surface Area130 acres
Drainage Area1 sq mi
Max Discharge419 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerTown of Orange
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection11/19/2021
Emergency Action PlanYes

Identifiers

NID IDMA00502
Federal IDMA00502
More InfoState Dam Safety Program

Nearby Dams

Lake Mattawa North Dam 0.8 mi Significant Vorces Pond Dam 0.9 mi Significant Mahar Regional School Dam 1.1 mi Significant New Home 1.9 mi Low Lake Rohunta Dam 2.3 mi Low White Pond Dam 2.8 mi Low Haskins Pond Dam 2.9 mi Significant Horse Shoe Regulating Dam 3.2 mi Low South Athol Pond Dam 3.6 mi Significant Bowen's Pond Dam 3.6 mi Low