Alkali Creek

Alkali Creek is an earth dam located in Park County, Wyoming, built in 1950. It carries a Low hazard potential classification and has a poor condition assessment.

About Alkali Creek

The primary purpose of Alkali Creek is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by F S Ranch Corporation (private). It impounds the Alkali Creek near Byron.

The dam stands 36 feet tall and stretches 685 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 114 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1950, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 08/27/2024.

At 36 feet, this dam is taller than 83% of dams nationwide.

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Low HazardPoor ConditionEmergency Action Plan: Not Required

Location

StateWyoming
CountyPark
Nearest CityByron
River/StreamAlkali Creek
Coordinates44.71611, -109.11750

Physical Characteristics

Dam TypeEarth
NID Height36 ft
Dam Height36 ft
Dam Length685 ft
Year Completed1950 (76 years old)

Storage & Hydraulics

NID Storage114 acre-ft
Max Storage114 acre-ft
Normal Storage66 acre-ft
Surface Area8 acres
Drainage Area5 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerF S RANCH CORPORATION
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentPoor
Last Inspection08/27/2024
Emergency Action PlanNot Required

Identifiers

NID IDWY01148
Federal IDWY01148
More InfoState Dam Safety Program

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