Iowa Noname11 is a state-regulated earth dam located in Decatur County, Iowa, serving multiple purposes including fire protection, stock, small fish pond, and recreation. Built in 1969, the dam stands at a height of 44 feet and has a length of 840 feet, with a storage capacity of 276 acre-feet. Situated on the TR-Dickerson Branch river, the dam's hazard potential is rated as low, with a moderate risk assessment score of 3.

Owned and regulated by the Iowa Department of Natural Resources, Iowa Noname11 is inspected, permitted, and enforced by state agencies, ensuring safety and compliance with regulations. Although the dam's condition assessment is not rated, its risk management measures are currently unspecified. The dam's location in Cainsville, MO, and its proximity to Rock Island District adds to its significance and interest for water resource and climate enthusiasts in the region.

Overall, Iowa Noname11 presents an intriguing case study for water resource and climate enthusiasts, showcasing the intersection of dam infrastructure, environmental management, and regulatory oversight. With its diverse purposes, low hazard potential, and moderate risk assessment, this earth dam in Decatur County, Iowa, offers a glimpse into the complexities of managing water resources for various needs while ensuring safety and compliance with state regulations.