Bates Creek

Bates Creek is an earth dam located in Natrona County, Wyoming, built in 1910. It carries a Significant hazard potential classification and has a poor condition assessment.

About Bates Creek

The primary purpose of Bates Creek is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Bates Creek Res. Co. - Andy Anderson (private). It impounds the Dry Fork Bates Creek near Casper.

The dam stands 23 feet tall and stretches 4,393 feet across, creates a reservoir covering 786 acres, has a maximum storage capacity of 8,885 acre-feet, and collects water from a drainage area of 33 square miles. Completed in 1910, the structure is over a century old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 06/03/2024.

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Significant HazardPoor ConditionEmergency Action Plan: Yes

Location

StateWyoming
CountyNatrona
Nearest CityCasper
River/StreamDry Fork Bates Creek
Coordinates42.48944, -106.21806

Physical Characteristics

Dam TypeEarth
NID Height23 ft
Dam Height23 ft
Dam Length4,393 ft
Year Completed1910 (116 years old)

Storage & Hydraulics

NID Storage8,885 acre-ft
Max Storage8,885 acre-ft
Normal Storage3,112 acre-ft
Surface Area786 acres
Drainage Area33 sq mi
Max Discharge4,000 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerBATES CREEK RES. CO. - ANDY ANDERSON
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection06/03/2024
Emergency Action PlanYes

Identifiers

NID IDWY00238
Federal IDWY00238
More InfoState Dam Safety Program

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