Frog

Frog is an earth dam located in Blaine County, Montana, built in 1960. It carries a Low hazard potential classification.

About Frog

The primary purpose of Frog is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by North Harlem Colony (private). It impounds the Tr-west Fogey Creek near Dodson.

The dam stands 46 feet tall and stretches 300 feet across, and has a maximum storage capacity of 539 acre-feet. Completed in 1960, 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 46 feet, this dam is taller than 91% of dams nationwide.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateMontana
CountyBlaine
Nearest CityDodson
River/StreamTr-west Fogey Creek
Coordinates48.58720, -108.75770

Physical Characteristics

Dam TypeEarth
NID Height46 ft
Dam Height46 ft
Dam Length300 ft
Year Completed1960 (66 years old)

Storage & Hydraulics

NID Storage539 acre-ft
Max Storage539 acre-ft
Normal Storage281 acre-ft

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerNORTH HARLEM COLONY
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDMT02975
Federal IDMT02975
More InfoState Dam Safety Program

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