Foss

Foss is an earth dam located in Richland County, Montana, built in 1964. It carries a Low hazard potential classification.

About Foss

The primary purpose of Foss is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Kenneth G Foss (private). It impounds the South Charlie Creek near Blair.

The dam stands 16 feet tall and stretches 465 feet across, has a maximum storage capacity of 59 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.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateMontana
CountyRichland
Nearest CityBlair
River/StreamSouth Charlie Creek
Coordinates48.02260, -104.78160

Physical Characteristics

Dam TypeEarth
NID Height16 ft
Dam Height16 ft
Dam Length465 ft
Year Completed1964 (62 years old)

Storage & Hydraulics

NID Storage59 acre-ft
Max Storage59 acre-ft
Normal Storage42 acre-ft
Drainage Area0 sq mi
Max Discharge3,000 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerKENNETH G FOSS
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDMT01511
Federal IDMT01511
More InfoState Dam Safety Program

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