John Lane

John Lane is an earth dam located in Teton County, Montana, built in 1952. It carries a Low hazard potential classification.

About John Lane

The primary purpose of John Lane is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Sophia Lane (private). It impounds the Tr-south Fork Willow Creek near Choteau.

The dam stands 20 feet tall and stretches 375 feet across, has a maximum storage capacity of 62 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1952, the structure is well into its service life at over 50 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.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateMontana
CountyTeton
Nearest CityChoteau
River/StreamTr-south Fork Willow Creek
Coordinates47.78140, -112.60800

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Height20 ft
Dam Length375 ft
Year Completed1952 (74 years old)

Storage & Hydraulics

NID Storage62 acre-ft
Max Storage62 acre-ft
Normal Storage32 acre-ft
Drainage Area1 sq mi
Max Discharge133 cfs

Ownership & Safety

PurposeIrrigation
OwnerSOPHIA LANE
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDMT00386
Federal IDMT00386
More InfoState Dam Safety Program

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