Experiment Station

Experiment Station is an earth dam located in Laramie County, Wyoming, built in 1932. It carries a Low hazard potential classification and has a fair condition assessment.

About Experiment Station

The primary purpose of Experiment Station is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by City Of Cheyenne-bopu (local government). It impounds the Crow Creek Offstream near Cheyenne.

The dam stands 23 feet tall and stretches 711 feet across, creates a reservoir covering 17 acres, has a maximum storage capacity of 320 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1932, 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 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 07/15/2025.

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Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StateWyoming
CountyLaramie
Nearest CityCheyenne
River/StreamCrow Creek Offstream
Coordinates41.19000, -104.89667

Physical Characteristics

Dam TypeEarth
NID Height23 ft
Dam Height23 ft
Dam Length711 ft
Year Completed1932 (94 years old)

Storage & Hydraulics

NID Storage320 acre-ft
Max Storage320 acre-ft
Normal Storage103 acre-ft
Surface Area17 acres
Drainage Area0 sq mi
Max Discharge400 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerCITY OF CHEYENNE-BOPU
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection07/15/2025
Emergency Action PlanNot Required

Identifiers

NID IDWY00013
Federal IDWY00013
More InfoState Dam Safety Program

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