Mule Creek No. 1

Mule Creek No. 1 is an earth dam located in Niobrara County, Wyoming, built in 1962. It carries a Low hazard potential classification and has a poor condition assessment.

About Mule Creek No. 1

The primary purpose of Mule Creek No. 1 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 Tetrad Corporation (private). It impounds the East Mule Creek near Edgemont, Sd.

The dam stands 30 feet tall and stretches 770 feet across, creates a reservoir covering 35 acres, and has a maximum storage capacity of 415 acre-feet. Completed in 1962, 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 10/19/2022.

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Low HazardPoor ConditionEmergency Action Plan: Not Required

Location

StateWyoming
CountyNiobrara
Nearest CityEdgemont, Sd
River/StreamEast Mule Creek
Coordinates43.26820, -104.14310

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Height27 ft
Dam Length770 ft
Year Completed1962 (64 years old)

Storage & Hydraulics

NID Storage415 acre-ft
Max Storage415 acre-ft
Normal Storage241 acre-ft
Surface Area35 acres
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerTETRAD CORPORATION
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentPoor
Last Inspection10/19/2022
Emergency Action PlanNot Required

Identifiers

NID IDWY00822
Federal IDWY00822
More InfoState Dam Safety Program

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