Izzenhood Dam

Izzenhood Dam is an earth dam located in Lander County, Nevada. It carries a Significant hazard potential classification and has a fair condition assessment.

About Izzenhood Dam

The primary purpose of Izzenhood Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by 25 Ranch Inc. (private). It impounds the Humboldt River-os near Red House.

The dam stands 16 feet tall and stretches 100 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 600 acre-feet, and collects water from a drainage area of 18 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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 10/07/2021.

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Significant HazardFair ConditionEmergency Action Plan: Yes

Location

StateNevada
CountyLander
Nearest CityRed House
River/StreamHumboldt River-os
Coordinates40.92078, -116.90272

Physical Characteristics

Dam TypeEarth
NID Height16 ft
Dam Height15 ft
Dam Length100 ft

Storage & Hydraulics

NID Storage600 acre-ft
Max Storage600 acre-ft
Normal Storage100 acre-ft
Surface Area10 acres
Drainage Area18 sq mi
Max Discharge80 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
Owner25 RANCH INC.
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection10/07/2021
Emergency Action PlanYes

Identifiers

NID IDNV00058
Federal IDNV00058
More InfoState Dam Safety Program

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