Big Sky Lake Dam (missoula)

Big Sky Lake Dam (missoula) is an earth dam located in Missoula County, Montana. It carries a Significant hazard potential classification.

About Big Sky Lake Dam (missoula)

The primary purpose of Big Sky Lake Dam (missoula) is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Big Sky Lake Home Owners Association (private). It impounds the Fish Creek near Bonner.

The dam stands 7 feet tall and stretches 180 feet across, creates a reservoir covering 94 acres, has a maximum storage capacity of 446 acre-feet, and collects water from a drainage area of 3 square miles.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life.

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Significant Hazard ConditionEmergency Action Plan: Not Required

Location

StateMontana
CountyMissoula
Nearest CityBonner
River/StreamFish Creek
Coordinates47.11176, -113.38242

Physical Characteristics

Dam TypeEarth
NID Height7 ft
Dam Height7 ft
Dam Length180 ft

Storage & Hydraulics

NID Storage446 acre-ft
Max Storage446 acre-ft
Normal Storage446 acre-ft
Surface Area94 acres
Drainage Area3 sq mi

Ownership & Safety

PurposeRecreation
OwnerBIG SKY LAKE HOME OWNERS ASSOCIATION
Owner TypePrivate
Hazard ClassificationSignificant
Emergency Action PlanNot Required

Identifiers

NID IDMT03838
Federal IDMT03838
More InfoState Dam Safety Program

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