Stone No. 1

Stone No. 1 is an earth dam located in Campbell County, Wyoming, built in 1908. It carries a Low hazard potential classification.

About Stone No. 1

The primary purpose of Stone No. 1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Contura Wyoming Land Llc (private). It impounds the Bone Pile Creek near Hulett.

The dam stands 9 feet tall and stretches 1,525 feet across, creates a reservoir covering 18 acres, and has a maximum storage capacity of 73 acre-feet. Completed in 1908, the structure is over a century 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. The most recent inspection on record was 07/24/2020.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateWyoming
CountyCampbell
Nearest CityHulett
River/StreamBone Pile Creek
Coordinates44.12270, -105.49460

Physical Characteristics

Dam TypeEarth
NID Height9 ft
Dam Height9 ft
Dam Length1,525 ft
Year Completed1908 (118 years old)

Storage & Hydraulics

NID Storage73 acre-ft
Max Storage73 acre-ft
Normal Storage55 acre-ft
Surface Area18 acres
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerCONTURA WYOMING LAND LLC
Owner TypePrivate
Hazard ClassificationLow
Last Inspection07/24/2020
Emergency Action PlanNot Required

Identifiers

NID IDWY00973
Federal IDWY00973
More InfoState Dam Safety Program

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