Trail No. 1 is a privately owned irrigation structure located in Guernsey, Wyoming, along Trail Creek. Constructed in 1955, this earth dam stands at 30 feet high and has a storage capacity of 145 acre-feet. Despite its low hazard potential, recent inspections have revealed poor structural conditions, indicating a need for maintenance and potential upgrades to ensure its continued functionality.

With a spillway width of 15 feet and a hydraulic height of 25 feet, Trail No. 1 serves as a crucial water resource for the surrounding area. However, its current condition assessment raises concerns about its long-term reliability. The dam's primary purpose is irrigation, supporting the agricultural needs of the region. Although the risk assessment categorizes it as moderate, the structure's deteriorating state underscores the importance of regular inspections and maintenance to mitigate potential hazards.

As a vital component of the local water infrastructure, Trail No. 1 requires ongoing attention to address its poor condition and ensure its continued effectiveness in water management. With its location in Congressional District 00 of Wyoming, under the jurisdiction of the State Regulatory Agency, the dam's state-permitted, inspected, and enforced status highlights the need for proactive measures to safeguard this essential resource for irrigation and environmental sustainability in the region.