Pine Cone No. 2

Pine Cone No. 2 is an earth dam located in Carbon County, Wyoming, built in 1977. It carries a Low hazard potential classification and has a poor condition assessment.

About Pine Cone No. 2

The primary purpose of Pine Cone No. 2 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Les & Shelly Dunmire (private). It impounds the Jack Daniels Draw near Rock River.

The dam stands 39 feet tall and stretches 1,650 feet across, creates a reservoir covering 13 acres, and has a maximum storage capacity of 186 acre-feet. Completed in 1977, the structure is 49 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 08/22/2023.

At 39 feet, this dam is taller than 86% of dams nationwide.

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Low HazardPoor ConditionEmergency Action Plan: Not Required

Location

StateWyoming
CountyCarbon
Nearest CityRock River
River/StreamJack Daniels Draw
Coordinates41.65833, -106.16667

Physical Characteristics

Dam TypeEarth
NID Height39 ft
Dam Height39 ft
Dam Length1,650 ft
Year Completed1977 (49 years old)

Storage & Hydraulics

NID Storage186 acre-ft
Max Storage186 acre-ft
Normal Storage121 acre-ft
Surface Area13 acres
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerLES & SHELLY DUNMIRE
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentPoor
Last Inspection08/22/2023
Emergency Action PlanNot Required

Identifiers

NID IDWY00462
Federal IDWY00462
More InfoState Dam Safety Program

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