The Ammons Roadgrade Structure in Monroe County, Iowa, was designed by John Goode, the county engineer, and serves as a local grade stabilization project along TR-Moffatt Creek. Completed in 2004, this earth dam stands at a height of 30 feet and stretches 850 feet in length, with a storage capacity of 120 acre-feet and a surface area of 4.8 acres. The dam is regulated by the Iowa Department of Natural Resources and is used for grade stabilization purposes in the region.

Despite being categorized as having a low hazard potential and a moderate risk assessment, the Ammons Roadgrade Structure has not been rated for its condition assessment. As of now, it has not undergone any formal inspection, and there is no emergency action plan in place. However, with state jurisdiction, permitting, and enforcement in place, this structure plays a crucial role in managing water resources and climate considerations in the area. As a focal point for water resource and climate enthusiasts, the Ammons Roadgrade Structure serves as a prime example of local government efforts to ensure environmental sustainability and safety in the face of potential risks.