Crosby Tank Detention Dam, located in Mohave County, Arizona, was completed in 1959 by the Bureau of Land Management to serve as a flood risk reduction structure along Langs Run. The dam is a gravity type structure made of stone with a height of 31 feet and a hydraulic height of 26 feet. It has a storage capacity of 1691.6 acre-feet and a surface area of 139.3 acres, serving the primary purpose of flood risk reduction.

Despite being classified as having a low hazard potential, the dam's condition assessment is poor, with the last inspection conducted in July 2008. The risk assessment for the dam is moderate, indicating a need for careful monitoring and potential maintenance measures to ensure its continued functionality. With a history of federal ownership and funding by the Bureau of Land Management, Crosby Tank Detention Dam remains a crucial infrastructure in safeguarding the surrounding areas from flooding events, making it a significant asset for water resource and climate enthusiasts to monitor and support in the future.