Atlas Dam

Atlas Dam is a gravity dam located in Valley County, Montana, built in 1984. It carries a Low hazard potential classification.

About Atlas Dam

The primary purpose of Atlas Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Doi Blm (federal). It impounds the Milk River near Tampico.

The dam stands 18 feet tall and stretches 409 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 51 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1984, the structure is 42 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. The most recent inspection on record was 07/14/2011. That was over 14 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMontana
CountyValley
Nearest CityTampico
River/StreamMilk River
Coordinates48.51216, -106.72118

Physical Characteristics

Dam TypeGravity
NID Height18 ft
Dam Length409 ft
Year Completed1984 (42 years old)

Storage & Hydraulics

NID Storage51 acre-ft
Max Storage51 acre-ft
Normal Storage51 acre-ft
Surface Area9 acres
Drainage Area2 sq mi

Ownership & Safety

PurposeFish and Wildlife Pond
OwnerDOI BLM
Owner TypeFederal
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection07/14/2011
Emergency Action PlanNot Required

Identifiers

NID IDMT03885
Federal IDMT03885
More InfoState Dam Safety Program

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