Boulder Lane

Boulder Lane is an earth dam located in Johnson County, Wyoming, built in 2007. It carries a Low hazard potential classification and has a fair condition assessment.

About Boulder Lane

The primary purpose of Boulder Lane is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Aht Land, Llc (lessee) (private). It impounds the Looney Draw near Ranch In Section 30.

The dam stands 34 feet tall and stretches 324 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 77 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 2007, the structure is relatively new.

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 08/31/2022.

At 34 feet, this dam is taller than 80% of dams nationwide.

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Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StateWyoming
CountyJohnson
Nearest CityRanch In Section 30
River/StreamLooney Draw
Coordinates44.43980, -106.30940

Physical Characteristics

Dam TypeEarth
NID Height34 ft
Dam Height34 ft
Dam Length324 ft
Year Completed2007 (19 years old)

Storage & Hydraulics

NID Storage77 acre-ft
Max Storage77 acre-ft
Normal Storage50 acre-ft
Surface Area5 acres
Drainage Area1 sq mi
Max Discharge1,850 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerAHT LAND, LLC (LESSEE)
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection08/31/2022
Emergency Action PlanNot Required

Identifiers

NID IDWY02409
Federal IDWY02409
More InfoState Dam Safety Program

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