Antelope

Antelope is an earth dam located in Carbon County, Wyoming, built in 1945. It carries a Low hazard potential classification and has a fair condition assessment.

About Antelope

The primary purpose of Antelope is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Usdi Blm (private). It impounds the Antelope Draw near Alcova.

The dam stands 18 feet tall and stretches 450 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 74 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1945, the structure is well-established, with more than 75 years of service.

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. The most recent inspection on record was 06/09/2022.

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Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StateWyoming
CountyCarbon
Nearest CityAlcova
River/StreamAntelope Draw
Coordinates42.24590, -106.26000

Physical Characteristics

Dam TypeEarth
NID Height18 ft
Dam Height18 ft
Dam Length450 ft
Year Completed1945 (81 years old)

Storage & Hydraulics

NID Storage74 acre-ft
Max Storage74 acre-ft
Normal Storage61 acre-ft
Surface Area11 acres
Drainage Area4 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeWater Supply
OwnerUSDI BLM
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection06/09/2022
Emergency Action PlanNot Required

Identifiers

NID IDWY00335
Federal IDWY00335
More InfoState Dam Safety Program

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