Iowa Noname47 is a state-regulated dam located in Shelby County, Iowa, specifically in Panama, along the Mosquito Creek. Built in 1965 by the Iowa Department of Transportation, this dam stands at a height of 23 feet and has a storage capacity of 120 acre-feet. With a surface area of 14.6 acres and a drainage area of 33 square miles, this dam serves a primary purpose that is classified as "Other", making it a unique water resource structure in the area.

Managed by the Iowa Department of Natural Resources, Iowa Noname47 has a low hazard potential and a moderate risk assessment rating. Although its condition has not been officially assessed, this dam is equipped with uncontrolled spillways and soil foundation. Its emergency action plan status and risk management measures remain unspecified, indicating a need for further evaluation and documentation. With its location in a picturesque rural setting and the potential impact on the surrounding environment, Iowa Noname47 is an intriguing structure for water resource and climate enthusiasts to explore and study.