Mcconnell No. 1

Mcconnell No. 1 is an earth dam located in Campbell County, Wyoming, built in 1954. It carries a Low hazard potential classification and has a poor condition assessment.

Hazard potentialLowFailure would cause limited damage
ConditionPoor3rd of 4 · remedial action needed
Emergency action planNot reported
Last inspection05/24/2022
Height34 ft
Built195472 years ago

Dam profile

NID height · 34 ft
34 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

34 ft tall and 200 ft long, taller than 78% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.

About Mcconnell No. 1

The primary purpose of Mcconnell No. 1 is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Shippy Land LLC (private). It impounds the Pine Creek near Powderville, Mt.

The dam stands 34 feet tall and stretches 200 feet across, creates a reservoir covering 5 acres, and has a maximum storage capacity of 93 acre-feet. Completed in 1954, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 05/24/2022.

At 34 feet, this dam is taller than 78% of dams nationwide.

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Location

StateWyoming
CountyCampbell
Nearest CityPowderville, Mt
River/StreamPine Creek
Coordinates44.84180, -105.18920

Physical Characteristics

Dam TypeEarth
NID Height34 ft
Dam Height34 ft
Dam Length200 ft
Year Completed1954 (72 years old)

Storage & Hydraulics

NID Storage93 acre-ft
Max Storage93 acre-ft
Normal Storage64 acre-ft
Surface Area5 acres
Spillway TypeUncontrolled

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerShippy Land LLC
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentPoor
Last Inspection05/24/2022
Emergency Action PlanNot Required

Identifiers

NID IDWY00987
Federal IDWY00987
More InfoState Dam Safety Program