Donna, located in Campbell County, Wyoming, is a privately owned earth dam constructed in 1956 for irrigation purposes on Trail Creek. With a height of 31 feet and a hydraulic height of 23 feet, Donna has a storage capacity of 308 acre-feet and a normal storage of 177 acre-feet. The dam spans 325 feet in length and covers a surface area of 22 acres, serving the surrounding area with water for agricultural needs.

Despite being classified as having a low hazard potential, Donna is currently assessed as being in poor condition as of the last inspection in July 2019. The dam features an uncontrolled spillway with a width of 100 feet and is equipped with one valve for outlet gates. The risk assessment for Donna is moderate (3), indicating the need for continued monitoring and potential risk management measures to ensure the safety and functionality of the dam.

Water resource and climate enthusiasts interested in the infrastructure and management of dams like Donna will find this information valuable for understanding the role of this structure in providing irrigation water to the region. As a key component of water resource management in the area, Donna's condition and risk assessment highlight the importance of ongoing maintenance and inspection to ensure the safety and effectiveness of the dam in serving the community's water needs.