Smith Dam, located in Maxwell, Iowa, is a privately owned structure designed by USDA NRCS with a primary purpose of fire protection, stock, or small fish pond. Completed in 1969, this earth dam stands at a height of 33 feet and has a length of 278 feet, creating a reservoir with a storage capacity of 72 acre-feet. The dam is regulated by the Iowa DNR and is used for flood control on TR-East Indian Creek.

With a low hazard potential and a moderate risk assessment rating, Smith Dam has not been rated for its condition assessment. While it does not have any outlet gates or spillways, it serves as a vital resource for water storage and management in the region. The dam's location within Story County, Iowa, makes it a significant structure for water resource and climate enthusiasts to monitor and study for its impact on the surrounding environment and community.