171 Ac Mcgill Dam

171 Ac Mcgill Dam is an earth dam located in White Pine County, Nevada. It carries a Low hazard potential classification and has a fair condition assessment.

About 171 Ac Mcgill Dam

The primary purpose of 171 Ac Mcgill Dam is tailings. Tailings dams contain waste material from mining operations — typically a slurry of finely ground rock left over after valuable minerals have been extracted. These structures require ongoing monitoring because tailings can contain heavy metals and other contaminants. The dam is owned by Kennecott Corporation (private). It impounds the Steptoe Creek-os near Warm Springs.

The dam stands 25 feet tall and stretches 100 feet across, creates a reservoir covering 171 acres, has a maximum storage capacity of 400 acre-feet, and collects water from a drainage area of 0 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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 05/01/2019.

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Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StateNevada
CountyWhite Pine
Nearest CityWarm Springs
River/StreamSteptoe Creek-os
Coordinates39.42960, -114.82280

Physical Characteristics

Dam TypeEarth
NID Height25 ft
Dam Height25 ft
Dam Length100 ft

Storage & Hydraulics

NID Storage400 acre-ft
Max Storage400 acre-ft
Normal Storage400 acre-ft
Surface Area171 acres
Drainage Area0 sq mi
Max Discharge1 cfs
Spillway TypeNone

Ownership & Safety

PurposeTailings
OwnerKENNECOTT CORPORATION
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection05/01/2019
Emergency Action PlanNot Required

Identifiers

NID IDNV00196
Federal IDNV00196
More InfoState Dam Safety Program

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