Rhead Ranch, located in Elmore, Idaho, is a privately owned irrigation structure regulated by the Idaho Department of Water Resources. Completed in 1974, this earth dam on the Little Camas Creek South Fork Boise River stands at a height of 33.7 feet and has a storage capacity of 380 acre-feet. With a surface area of 32 acres and a drainage area of 41 square miles, the dam serves the primary purpose of irrigation for the surrounding agricultural lands.

Despite being classified as a low hazard potential structure with a satisfactory condition assessment, Rhead Ranch faces a moderate risk due to its location and design. The spillway, which is uncontrolled with a width of 10 feet, allows for a maximum discharge of 650 cubic feet per second. Regular inspections are conducted every 5 years to ensure the safety and functionality of the dam, with the last assessment taking place in October 2017. The emergency action plan and risk management measures for the structure are currently under review, highlighting the importance of maintaining preparedness in the face of potential climate-related challenges.

Overall, Rhead Ranch serves as a crucial water resource for agricultural activities in the area, while also facing moderate risks associated with its design and location. As water resource and climate enthusiasts, it is important to monitor and support the ongoing maintenance and regulatory efforts to ensure the safety and sustainability of this vital irrigation structure in Idaho.