Flat is a privately owned irrigation dam located in Campbell County, Wyoming, along Flat Creek. Built in 1914, this earth dam stands at 10 feet tall and spans 1200 feet in length, with a maximum storage capacity of 149 acre-feet. The dam is regulated by the Wyoming State Engineer's Office and undergoes regular inspections to ensure its fair condition and low hazard potential.

Despite its age, the dam's risk assessment is moderate, indicating a level 3 risk. It features an uncontrolled spillway with a width of 300 feet and a single valve outlet gate. While the dam has not been modified or updated in recent years, its emergency action plan status and inundation maps are unknown. Overall, Flat serves an essential purpose for irrigation in the region and remains a key structure in the local water resource management system.