Archer #2

Archer #2 is an earth dam located in Fergus County, Montana, built in 1964. It carries a Low hazard potential classification.

About Archer #2

The primary purpose of Archer #2 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by William C. & Fay L. Haynie (private). It impounds the Tr-north Fork Elk Creek near Mosby.

The dam stands 33 feet tall and stretches 150 feet across, has a maximum storage capacity of 65 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1964, 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.

At 33 feet, this dam is taller than 78% of dams nationwide.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateMontana
CountyFergus
Nearest CityMosby
River/StreamTr-north Fork Elk Creek
Coordinates46.99790, -108.66920

Physical Characteristics

Dam TypeEarth
NID Height33 ft
Dam Height33 ft
Dam Length150 ft
Year Completed1964 (62 years old)

Storage & Hydraulics

NID Storage65 acre-ft
Max Storage65 acre-ft
Normal Storage39 acre-ft
Drainage Area0 sq mi
Max Discharge100 cfs

Ownership & Safety

PurposeIrrigation
OwnerWILLIAM C. & FAY L. HAYNIE
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDMT00148
Federal IDMT00148
More InfoState Dam Safety Program

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