Lone Tree

Lone Tree is a dam located in Owyhee County, Idaho, built in 1918. It carries a Low hazard potential classification and has a fair condition assessment.

About Lone Tree

Lone Tree is a dam in Owyhee, Idaho. The dam is private-owned. It impounds the Unnamed Stream Lone Tree Creek near Remote.

The dam stands 12 feet tall and stretches 1,150 feet across, creates a reservoir covering 140 acres, has a storage capacity of 415 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1918, the structure is over a century 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. 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 07/30/2019.

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Low HazardFair ConditionEmergency Action Plan: Yes

Location

StateIdaho
CountyOwyhee
Nearest CityRemote
River/StreamUnnamed Stream Lone Tree Creek
Coordinates42.90520, -117.01920

Physical Characteristics

NID Height12 ft
Dam Height12 ft
Dam Length1,150 ft
Year Completed1918 (108 years old)

Storage & Hydraulics

NID Storage415 acre-ft
Normal Storage415 acre-ft
Surface Area140 acres
Drainage Area1 sq mi
Max Discharge5 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeOther
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection07/30/2019
Emergency Action PlanYes

Identifiers

NID IDID00196
Federal IDID00196
More InfoState Dam Safety Program

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