East Fork Grand River Watershed Site D-56 is a key structure in Ringgold County, Iowa, designed by the USDA NRCS for flood risk reduction along Tr-Lotts Creek. Completed in 2007, this earth dam stands at a height of 23 feet and spans a length of 610 feet, with a storage capacity of 130 acre-feet. The dam, owned by the local government, is regulated by the Iowa DNR and is inspected and enforced by state authorities to ensure its integrity and functionality.

Located in the State of Missouri, the East Fork Grand River Watershed Site D-56 serves a primary purpose of flood risk reduction and is considered to have a low hazard potential with a moderate risk assessment rating of 3. Although the condition of the dam is currently not rated, it has not required any modifications since its completion. The dam's spillway type is uncontrolled, with a width of 30 feet, and it has a surface area of 8 acres within its drainage area of 0.39 square miles.

Overall, East Fork Grand River Watershed Site D-56 is a vital infrastructure in the region, contributing to the management of water resources and climate resilience in the area. With its strategic design and state regulation, the dam plays a crucial role in mitigating flood risks and protecting the surrounding community from potential disasters. As a part of the broader water management system, this structure demonstrates the importance of proactive measures in safeguarding our natural environment and local infrastructure.