Lake Miami Sediment Basin - Middle Site is a Grade Stabilization structure located in Eddyville, Iowa, along Tr-Bluff Creek. Built in 2000 by the USDA NRCS, this Earth dam stands at 33 feet high and spans 300 feet in length, with a storage capacity of 27 acre-feet. Serving as a key control point for sediment runoff, the basin covers a surface area of 2 acres and drains a small watershed of 0.09 square miles.

Despite its low hazard potential and moderate risk assessment, Lake Miami Sediment Basin has not been rated for its condition. The uncontrolled spillway design suggests a minimal risk of overflow, with no outlet gates or locks reported. While the structure is not under state regulation or inspection, its primary purpose of Grade Stabilization remains crucial for maintaining water quality in the area. For water resource and climate enthusiasts, this site offers a fascinating case study in sediment management and erosion control within the context of agricultural landscapes in Iowa.

With its strategic location and significant impact on local water quality, Lake Miami Sediment Basin - Middle Site represents a vital piece of infrastructure in Monroe County, Iowa. As a State-owned facility, it plays a crucial role in preventing soil erosion and protecting downstream water resources. The absence of a designated Emergency Action Plan and lack of recent inspections raise questions about the long-term management and maintenance of this structure, highlighting the need for continued monitoring and oversight to ensure its continued effectiveness in sediment and erosion control efforts.