Golden Gate Dam

Golden Gate Dam is a gravity dam located in Blaine County, Montana. It carries a Low hazard potential classification.

About Golden Gate Dam

The primary purpose of Golden Gate Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Doi Blm (federal). It impounds the Unnamed Drainage.

The dam stands 16 feet tall and stretches 517 feet across, creates a reservoir covering 14 acres, has a maximum storage capacity of 73 acre-feet, and collects water from a drainage area of 10 square miles.

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 09/05/2018.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMontana
CountyBlaine
River/StreamUnnamed Drainage
Coordinates48.92365, -109.37562

Physical Characteristics

Dam TypeGravity
NID Height16 ft
Dam Length517 ft

Storage & Hydraulics

NID Storage73 acre-ft
Max Storage73 acre-ft
Normal Storage8 acre-ft
Surface Area14 acres
Drainage Area10 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerDOI BLM
Owner TypeFederal
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection09/05/2018
Emergency Action PlanNot Required

Identifiers

NID IDMT03412
Federal IDMT03412
More InfoState Dam Safety Program

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