Leland #1

Leland #1 is an earth dam located in Custer County, Montana, built in 1959. It carries a Low hazard potential classification.

About Leland #1

The primary purpose of Leland #1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Leland Ranch Inc (private). It impounds the Tr-whitney Creek near Fallon.

The dam stands 20 feet tall and stretches 200 feet across, has a maximum storage capacity of 57 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1959, 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
CountyCuster
Nearest CityFallon
River/StreamTr-whitney Creek
Coordinates46.49100, -105.01540

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Height20 ft
Dam Length200 ft
Year Completed1959 (67 years old)

Storage & Hydraulics

NID Storage57 acre-ft
Max Storage57 acre-ft
Normal Storage29 acre-ft
Drainage Area0 sq mi
Max Discharge1,000 cfs

Ownership & Safety

PurposeIrrigation
OwnerLELAND RANCH INC
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDMT01805
Federal IDMT01805
More InfoState Dam Safety Program

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