Reagan Lake

Reagan Lake is an earth dam located in Glacier County, Montana, built in 1967. It carries a Low hazard potential classification.

About Reagan Lake

The primary purpose of Reagan Lake is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Macdonald/mcclure Reagan (private). It impounds the Tr-rocky Coulee near Cut Bank.

The dam stands 37 feet tall and stretches 290 feet across, has a maximum storage capacity of 74 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1967, 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 37 feet, this dam is taller than 84% of dams nationwide.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateMontana
CountyGlacier
Nearest CityCut Bank
River/StreamTr-rocky Coulee
Coordinates48.92930, -112.52483

Physical Characteristics

Dam TypeEarth
NID Height37 ft
Dam Height37 ft
Dam Length290 ft
Year Completed1967 (59 years old)

Storage & Hydraulics

NID Storage74 acre-ft
Max Storage74 acre-ft
Normal Storage60 acre-ft
Drainage Area1 sq mi

Ownership & Safety

PurposeIrrigation
OwnerMACDONALD/MCCLURE REAGAN
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDMT01265
Federal IDMT01265
More InfoState Dam Safety Program

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