Thorne Dam

Significant HazardFair ConditionEmergency Action Plan: Yes

Location

CountyDutchess
Nearest CityWassaic
River/StreamWASSAIC CREEK
Coordinates41.81639, -73.58389

Physical Characteristics

Dam TypeMasonry
NID Height38 ft
Dam Height38 ft
Dam Length227 ft
Year Completed1905 (121 years old)

Storage & Hydraulics

NID Storage44 acre-ft
Max Storage44 acre-ft
Normal Storage35 acre-ft
Surface Area4 acres
Drainage Area21 sq mi
Max Discharge1,790 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerTHORNE'S DAM LLC
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection03/22/2023
Emergency Action PlanYes

Identifiers

NID IDNY00793
Federal IDNY00793
More InfoState Dam Safety Program

Nearby Dams