Shoup Lake

Shoup Lake is an earth dam located in Powell County, Montana, built in 1925. It carries a Low hazard potential classification.

About Shoup Lake

The primary purpose of Shoup Lake is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Two Creek Ranch (private). It impounds the Offstream-dunham Creek near Bonner.

The dam stands 18 feet tall and stretches 90 feet across, and has a maximum storage capacity of 384 acre-feet. Completed in 1925, the structure is over a century 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.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateMontana
CountyPowell
Nearest CityBonner
River/StreamOffstream-dunham Creek
Coordinates47.09730, -113.17450

Physical Characteristics

Dam TypeEarth
NID Height18 ft
Dam Height18 ft
Dam Length90 ft
Year Completed1925 (101 years old)

Storage & Hydraulics

NID Storage384 acre-ft
Max Storage384 acre-ft
Normal Storage201 acre-ft

Ownership & Safety

PurposeIrrigation
OwnerTWO CREEK RANCH
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDMT01389
Federal IDMT01389
More InfoState Dam Safety Program

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