Alkali Dam

Alkali Dam is an earth dam located in Humboldt County, Nevada, built in 1941. It carries a Low hazard potential classification and has a poor condition assessment.

About Alkali Dam

The primary purpose of Alkali Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Us Fish And Wildlife Service (federal). It impounds the Virgin Creek.

The dam stands 16 feet tall and stretches 235 feet across, creates a reservoir covering 90 acres, has a maximum storage capacity of 1,233 acre-feet, and collects water from a drainage area of 126 square miles. Completed in 1941, the structure is well-established, with more than 75 years of service.

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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 07/28/2015. That was over 10 years ago.

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Low HazardPoor ConditionEmergency Action Plan: Not Required

Location

StateNevada
CountyHumboldt
River/StreamVirgin Creek
Coordinates41.64000, -119.14000

Physical Characteristics

Dam TypeEarth
NID Height16 ft
Dam Height16 ft
Dam Length235 ft
Year Completed1941 (85 years old)

Storage & Hydraulics

NID Storage1,233 acre-ft
Max Storage1,233 acre-ft
Normal Storage315 acre-ft
Surface Area90 acres
Drainage Area126 sq mi
Max Discharge746 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerUS FISH AND WILDLIFE SERVICE
Owner TypeFederal
Hazard ClassificationLow
Condition AssessmentPoor
Last Inspection07/28/2015
Emergency Action PlanNot Required

Identifiers

NID IDNV00001
Federal IDNV00001
More InfoState Dam Safety Program

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