Chandler Dam, located in Rathbun Reservoir, Iowa, is a private dam primarily designed for fire protection, stock, and small fish ponds. Built in 1958 by the USDA NRCS, this earth dam stands at 30 feet tall and spans 574 feet in length. With a storage capacity of 140 acre-feet and a surface area of 10.3 acres, Chandler Dam plays a crucial role in providing water supply and recreational opportunities while also serving as a protective measure against potential hazards.

Managed by the Iowa DNR, Chandler Dam is regulated and inspected regularly to ensure its structural integrity and functionality. Despite its low hazard potential, the dam is considered to have a moderate risk level (3) and is subject to risk management measures. The dam's uncontrolled spillway type and soil foundation further emphasize the importance of ongoing monitoring and maintenance efforts to mitigate any potential risks associated with the structure.

As part of the Rock Island District, Chandler Dam contributes to the overall water resource management in the region and serves as a vital component of the Chariton River system. Its presence not only supports local water needs but also enhances the surrounding ecosystem, making it a significant landmark for water resource and climate enthusiasts to appreciate and protect for years to come.