Located in Shelby County, Iowa, the Iowa Noname48 dam is a local government-owned structure designed by the USDA NRCS. Completed in 1960, this earth dam serves multiple purposes including fire protection, stock, and small fish pond management. With a height of 40 feet and a length of 937 feet, the dam has a storage capacity of 143 acre-feet and covers a surface area of 7.3 acres.

Managed by the Iowa Department of Natural Resources, the dam is regulated, permitted, inspected, and enforced by state authorities. Despite having a low hazard potential, the dam is considered to have a moderate risk level. The spillway type is uncontrolled, and the dam is situated on TR-Mill Creek, a tributary of the Rock Island District. Congressman Steve King represents the area where the dam is located.

Water resource and climate enthusiasts will find Iowa Noname48 an interesting structure for its multifunctional use and its management under state jurisdiction. The dam's historical significance, design, and purpose add to the rich environmental landscape of the region. The dam's risk assessment and regulatory framework provide insights into the challenges and opportunities for sustainable water management in Iowa.