Rachou is a privately owned dam located in Fremont, Wyoming, along Holland Creek. Built in 1940 for irrigation purposes, this earth dam stands at a height of 22 feet and has a structural height of 25 feet. With a storage capacity of 19 acre-feet and a surface area of 4 acres, Rachou plays a crucial role in water resource management in the region.

Despite its low hazard potential, Rachou is currently assessed as being in poor condition as of June 2020. The dam's spillway type is uncontrolled with a width of 12 feet, and it has one valve outlet gate. With a moderate risk assessment rating, there are no emergency action plans prepared or updated for the dam, indicating a potential area for improvement in risk management measures.

With its location within the Omaha District and under the jurisdiction of the State of Wyoming, Rachou serves as a significant water infrastructure for irrigation in the area. Climate and water resource enthusiasts may find interest in the dam's historical significance, its current condition assessment, and potential risk management strategies that could be implemented to ensure its long-term sustainability and safety.