Castle Rock Reservoir Dam

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateMontana
CountyRosebud
Nearest CityFORSYTH
River/StreamTR-EAST FORK ARMELLS CREEK
Coordinates45.89500, -106.63640

Physical Characteristics

Dam TypeEarth
NID Height67 ft
Dam Height67 ft
Dam Length1,095 ft
Year Completed1976 (50 years old)

Storage & Hydraulics

NID Storage3,540 acre-ft
Max Storage3,540 acre-ft
Normal Storage2,930 acre-ft
Surface Area140 acres
Drainage Area0 sq mi
Max Discharge2,820 cfs

Ownership & Safety

PurposeOther
OwnerTALEN ENERGY
Owner TypePublic Utility
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection07/15/2015
Emergency Action PlanYes

Identifiers

NID IDMT01982
Federal IDMT01982
More InfoState Dam Safety Program

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