Lake Mahopac Dam

Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

CountyPutnam
Nearest CityMahopac Falls
River/StreamMUSCOOT RIVER
Coordinates41.37417, -73.75417

Physical Characteristics

Dam TypeEarth
NID Height9 ft
Dam Height9 ft
Dam Length190 ft
Year Completed1940 (86 years old)

Storage & Hydraulics

NID Storage17,850 acre-ft
Max Storage17,850 acre-ft
Normal Storage16,684 acre-ft
Surface Area583 acres
Drainage Area1 sq mi
Max Discharge109 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerTOWN OF CARMEL
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection03/17/2025
Emergency Action PlanYes

Identifiers

NID IDNY01329
Federal IDNY01329
More InfoState Dam Safety Program

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