Streeter

Streeter is an earth dam located in Johnson County, Wyoming, built in 1951. It carries a Low hazard potential classification and has a fair condition assessment.

About Streeter

The primary purpose of Streeter is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Es Land & Livestock, Llc (private). It impounds the Little Willow Creek near Arvada.

The dam stands 32 feet tall and stretches 700 feet across, creates a reservoir covering 36 acres, and has a maximum storage capacity of 536 acre-feet. Completed in 1951, 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 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 05/05/2021.

At 32 feet, this dam is taller than 76% of dams nationwide.

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Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StateWyoming
CountyJohnson
Nearest CityArvada
River/StreamLittle Willow Creek
Coordinates43.79730, -106.13140

Physical Characteristics

Dam TypeEarth
NID Height32 ft
Dam Height32 ft
Dam Length700 ft
Year Completed1951 (75 years old)

Storage & Hydraulics

NID Storage536 acre-ft
Max Storage536 acre-ft
Normal Storage323 acre-ft
Surface Area36 acres

Ownership & Safety

PurposeIrrigation
OwnerES LAND & LIVESTOCK, LLC
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection05/05/2021
Emergency Action PlanNot Required

Identifiers

NID IDWY00996
Federal IDWY00996
More InfoState Dam Safety Program

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