Iowa Noname86 is a state-regulated dam located in Fremont County, Iowa, near the city of Hamburg. Built in 1976, this earth dam serves multiple purposes including fire protection, stock, and small fish pond management. With a height of 63 feet and a storage capacity of 110 acre-feet, the dam spans a surface area of 4.1 acres and covers a drainage area of 0.09 square miles along the TR-West Nishnabotna River.

Managed by the Iowa Department of Natural Resources, Iowa Noname86 has a low hazard potential and a moderate risk assessment rating. Despite its age, the dam's condition is currently listed as not rated, and it has not undergone recent inspections or condition assessments. The dam's spillway type is uncontrolled, and it does not have any associated locks or outlets. While the dam meets state regulatory requirements for permitting, inspection, and enforcement, there is limited information available on emergency action plans and risk management measures.

For water resource and climate enthusiasts, Iowa Noname86 presents an intriguing case study of a relatively small but multifunctional dam in the heart of the Midwest. Its location along a tributary of the Nishnabotna River and its role in providing essential services to the local community underscore the importance of maintaining and monitoring such infrastructure in the face of changing environmental conditions. As climate impacts continue to influence water availability and quality, understanding the resilience and vulnerabilities of dams like Iowa Noname86 is crucial for ensuring sustainable water management practices in the region.