Iowa Noname58, located in Wayne County, Iowa, is a local government-owned earth dam completed in 1972 by USDA NRCS for fire protection, stock, and small fish pond purposes. The dam has a height of 22 feet, a length of 850 feet, and a storage capacity of 91 acre-feet. Situated on the South Fork Chariton River, this dam plays a crucial role in managing water resources in the area, with a surface area of 6.5 acres and a drainage area of 0.39 square miles.

Managed by the Iowa Department of Natural Resources, Iowa Noname58 is a state-regulated structure with designated state jurisdiction for permitting, inspection, and enforcement. Despite being rated with a low hazard potential and not yet assessed for condition, the dam is considered to have a moderate risk level. The Rock Island District of the US Army Corps of Engineers oversees this structure, ensuring its safety and compliance with regulatory standards. With its strategic location and purpose, Iowa Noname58 serves as a vital component in water resource management and climate resilience efforts in the region.

With its historical significance and essential role in water management, Iowa Noname58 is a notable structure in the Rathbun Reservoir area. While its condition assessment is yet to be rated, the dam continues to serve its primary purposes effectively. As climate change impacts water resources, structures like Iowa Noname58 become increasingly crucial for flood control, water supply, and ecosystem protection. By understanding and monitoring the risks associated with dams like Iowa Noname58, stakeholders can ensure the sustainable management of water resources and enhance climate resilience in the region.