Colletti No. 2

Colletti No. 2 is an earth dam located in Lincoln County, Wyoming, built in 1927. It carries a Low hazard potential classification and has a poor condition assessment.

About Colletti No. 2

The primary purpose of Colletti 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 Joseph James & Louis Colletti (private). It impounds the Branch Of Willow Creek near Kemmerer.

The dam stands 26 feet tall and stretches 536 feet across, creates a reservoir covering 6 acres, and has a maximum storage capacity of 76 acre-feet. Completed in 1927, the structure is well-established, with more than 75 years of service.

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 08/17/2023.

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Low HazardPoor ConditionEmergency Action Plan: Not Required

Location

StateWyoming
CountyLincoln
Nearest CityKemmerer
River/StreamBranch Of Willow Creek
Coordinates41.93500, -110.50600

Physical Characteristics

Dam TypeEarth
NID Height26 ft
Dam Height26 ft
Dam Length536 ft
Year Completed1927 (99 years old)

Storage & Hydraulics

NID Storage76 acre-ft
Max Storage76 acre-ft
Normal Storage50 acre-ft
Surface Area6 acres
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerJOSEPH JAMES & LOUIS COLLETTI
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentPoor
Last Inspection08/17/2023
Emergency Action PlanNot Required

Identifiers

NID IDWY01284
Federal IDWY01284
More InfoState Dam Safety Program

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