J. Smith, located in Washakie, Wyoming, along the Alkali Spring river, is a privately owned Earth dam completed in 1943 for irrigation purposes. Designed by George M. Donnell, this dam stands at 14 feet high with a hydraulic height of 9 feet and a length of 1075 feet. It has a storage capacity of 133 acre-feet, with a normal storage level of 53 acre-feet and a surface area of 15 acres.

With a low hazard potential and fair condition assessment, J. Smith is regulated by the state of Wyoming and undergoes regular inspections, the most recent being in June 2021. The dam features an uncontrolled spillway with a width of 75 feet and a single valve outlet gate. Despite being categorized as having a moderate risk level, there are no risk management measures or emergency action plans currently in place, indicating a potential area for improvement in ensuring the safety and resilience of this water resource structure. For water resource and climate enthusiasts, J. Smith presents an intriguing case study in the ongoing management and maintenance of critical infrastructure in the face of evolving environmental challenges.