Gleason Reservoir No. 2

Gleason Reservoir No. 2 is an earth dam located in Laramie County, Wyoming, built in 1909. It carries a Low hazard potential classification and has a poor condition assessment.

About Gleason Reservoir No. 2

The primary purpose of Gleason Reservoir No. 2 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Lars0n Vallry Ranch, Llc (private). It impounds the Lone Tree Creek Offstream near Timnath, Colorado.

The dam stands 21 feet tall and stretches 400 feet across, creates a reservoir covering 30 acres, and has a maximum storage capacity of 230 acre-feet. Completed in 1909, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 05/10/2022.

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Low HazardPoor ConditionEmergency Action Plan: Not Required

Location

StateWyoming
CountyLaramie
Nearest CityTimnath, Colorado
River/StreamLone Tree Creek Offstream
Coordinates41.03370, -104.90230

Physical Characteristics

Dam TypeEarth
NID Height21 ft
Dam Height20 ft
Dam Length400 ft
Year Completed1909 (117 years old)

Storage & Hydraulics

NID Storage230 acre-ft
Max Storage230 acre-ft
Normal Storage160 acre-ft
Surface Area30 acres
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerLARS0N VALLRY RANCH, LLC
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentPoor
Last Inspection05/10/2022
Emergency Action PlanNot Required

Identifiers

NID IDWY00014
Federal IDWY00014
More InfoState Dam Safety Program

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