John Job

John Job is an earth dam located in Wibaux County, Montana, built in 1964. It carries a Low hazard potential classification.

About John Job

The primary purpose of John Job is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by John Job (private). It impounds the Tr-box Elder Creek near Savage.

The dam stands 18 feet tall and stretches 392 feet across, has a maximum storage capacity of 57 acre-feet, and collects water from a drainage area of 2 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
CountyWibaux
Nearest CitySavage
River/StreamTr-box Elder Creek
Coordinates47.08199, -104.28043

Physical Characteristics

Dam TypeEarth
NID Height18 ft
Dam Height18 ft
Dam Length392 ft
Year Completed1964 (62 years old)

Storage & Hydraulics

NID Storage57 acre-ft
Max Storage57 acre-ft
Normal Storage21 acre-ft
Drainage Area2 sq mi
Max Discharge740 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerJOHN JOB
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDMT01145
Federal IDMT01145
More InfoState Dam Safety Program

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