Fairchild No 2 (Lower), also known as Lower Fairchild Dam, is a privately owned structure located in Midvale, Idaho. Completed in 1988, this earth dam stands at a height of 24.4 feet and serves primarily for irrigation purposes in the region. It impounds an unnamed stream and Sage Creek, providing a storage capacity of 108 acre-feet and covering a surface area of 10 acres.

With a spillway width of 17 feet and a maximum discharge capacity of 80 cubic feet per second, Fairchild No 2 (Lower) has been deemed to have a significant hazard potential. Despite this, the dam's condition assessment in 2017 rated it as fair, with a moderate risk level. Regular inspections are carried out every 4 years to ensure its structural integrity and safety, with the Idaho Department of Water Resources overseeing state regulation, permitting, inspection, and enforcement of this crucial water resource infrastructure.

For water resource and climate enthusiasts, Fairchild No 2 (Lower) offers a glimpse into the intricate network of dams that support agricultural irrigation in Idaho. Its location, design features, and regulatory oversight provide valuable insights into the management of water resources in the region, highlighting the importance of maintaining infrastructure like this for sustainable water use and management in a changing climate.