Q-P, also known as Quealy-Peterson, is a privately owned Earth dam located in Cokeville, Wyoming, along Birch Creek. Completed in 1914, this irrigation structure stands at 26 feet tall and has a storage capacity of 139 acre-feet. Despite its age, Q-P is regulated and inspected by the Wyoming State Engineer's Office, ensuring its functionality and safety for agricultural water needs in the region.

With a spillway width of 10 feet and a low hazard potential, Q-P presents a moderate risk, rated at 3 on the risk assessment scale. The dam's condition is assessed as poor, indicating a need for maintenance and potential improvements to its infrastructure. Although it has a valve outlet gate for water control, the dam lacks drainage area and maximum discharge capacity, highlighting areas for potential enhancement to optimize its operational efficiency.

As a key component of the irrigation system in the area, Q-P plays a crucial role in water resource management and agricultural productivity. With proper maintenance and risk management measures, this historic dam can continue to support the needs of the community while adapting to the changing climate and water resource challenges in the region.