Thornton Lake Dam

Significant Hazard ConditionEmergency Action Plan: Not Required

Location

StateMontana
CountyDeer Lodge
Nearest CityDEER LODGE
River/StreamTHORTON CREEK
Coordinates46.26016, -113.03469

Physical Characteristics

Dam TypeRockfill
NID Height11 ft
Dam Height11 ft
Dam Length315 ft
Year Completed1904 (122 years old)

Storage & Hydraulics

NID Storage243 acre-ft
Normal Storage243 acre-ft
Surface Area31 acres
Drainage Area11 sq mi
Spillway TypeControlled

Ownership & Safety

PurposeIrrigation
OwnerDONALD W BECK
Owner TypePrivate
Hazard ClassificationSignificant
Last Inspection08/11/2014
Emergency Action PlanNot Required

Identifiers

NID IDMT01143
Federal IDMT01143
More InfoState Dam Safety Program

Nearby Dams

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