Iowa Noname73, located in Churchville, Iowa, is a privately owned earth dam constructed in 1975 by the USDA NRCS for multiple purposes including fire protection, stock, small fish pond, recreation, and water supply. The dam measures 18 feet in height and 540 feet in length, with a storage capacity of 96 acre-feet and a surface area of 6.7 acres. Situated on TR-North River in Madison County, Iowa, this dam is regulated by the Iowa Department of Natural Resources and is inspected, permitted, and enforced by state authorities.

Despite its low hazard potential and moderate risk assessment, the condition of Iowa Noname73 is currently rated as "Not Rated" due to the absence of recent inspection data. The dam has an uncontrolled spillway type with no outlet gates, and its primary purpose is to provide essential services while serving as a recreational amenity for the local community. With a drainage area of 0.31 square miles, this dam plays a crucial role in managing water resources in the region and demonstrates the collaborative effort between private owners and state agencies in ensuring the safety and functionality of water infrastructure in Iowa.