Re-regulating

Re-regulating is an earth dam located in Stillwater County, Montana, built in 1979. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Re-regulating

The primary purpose of Re-regulating is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Northwestern Energy (private). It impounds the West Rosebud Creek near Fishtail, Mt.

The dam stands 15 feet tall and stretches 410 feet across, creates a reservoir covering 49 acres, has a maximum storage capacity of 475 acre-feet, and collects water from a drainage area of 52 square miles. Completed in 1979, the structure is 47 years old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 08/29/2019.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateMontana
CountyStillwater
Nearest CityFishtail, Mt
River/StreamWest Rosebud Creek
Coordinates45.25208, -109.70758

Physical Characteristics

Dam TypeEarth
NID Height15 ft
Dam Height15 ft
Dam Length410 ft
Year Completed1979 (47 years old)

Storage & Hydraulics

NID Storage475 acre-ft
Max Storage475 acre-ft
Normal Storage470 acre-ft
Surface Area49 acres
Drainage Area52 sq mi
Max Discharge4,800 cfs
Spillway TypeControlled

Ownership & Safety

PurposeHydroelectric
OwnerNorthWestern Energy
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection08/29/2019
Emergency Action PlanNot Required

Identifiers

NID IDMT83001
Federal IDMT83001
More InfoState Dam Safety Program

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