Ollie Stock

Ollie Stock is an earth dam located in Sheridan County, Wyoming, built in 1963. It carries a Low hazard potential classification and has a poor condition assessment.

About Ollie Stock

The primary purpose of Ollie Stock is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Auzqui Ranch Llc (private). It impounds the No. Three Draw near Powderville, Mt.

The dam stands 25 feet tall and stretches 341 feet across, creates a reservoir covering 6 acres, and has a maximum storage capacity of 91 acre-feet. Completed in 1963, the structure is well into its service life at over 50 years 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 06/22/2022.

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Low HazardPoor ConditionEmergency Action Plan: Not Required

Location

StateWyoming
CountySheridan
Nearest CityPowderville, Mt
River/StreamNo. Three Draw
Coordinates44.66810, -106.30670

Physical Characteristics

Dam TypeEarth
NID Height25 ft
Dam Height25 ft
Dam Length341 ft
Year Completed1963 (63 years old)

Storage & Hydraulics

NID Storage91 acre-ft
Max Storage91 acre-ft
Normal Storage55 acre-ft
Surface Area6 acres
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerAUZQUI RANCH LLC
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentPoor
Last Inspection06/22/2022
Emergency Action PlanNot Required

Identifiers

NID IDWY00475
Federal IDWY00475
More InfoState Dam Safety Program

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