Located in Sheridan, Wyoming, Dome Lake No. 1 is an earth dam built in 1969 for irrigation purposes along the West Fork Big Goose Creek. The dam is 30 feet in height and stretches 1110 feet in length, with a capacity of 2030 acre-feet of water. Despite its critical role in water resource management, Dome Lake No. 1 has been deemed to have a high hazard potential and poor condition assessment.

The dam features a slide gate outlet and an uncontrolled spillway with a width of 40 feet. The structure is regulated and inspected by the Wyoming State Engineer's Office, with the last inspection conducted in September 2020. Dome Lake No. 1 poses a moderate risk level, prompting the need for ongoing risk management measures and potential emergency action planning to safeguard against any potential failures that could impact the surrounding area.

Climate and water resource enthusiasts will find Dome Lake No. 1 to be a significant piece of infrastructure in the region, playing a crucial role in irrigation and water storage. With its unique design and historical significance dating back to the late 1960s, the dam serves as a reminder of the importance of effective dam maintenance and risk management in ensuring the safety and sustainability of water resources in the area.