Grap Dam, located in Missouri Valley, Iowa, is a privately owned structure designed by the USDA NRCS for the primary purpose of flood risk reduction. Completed in 2011, this earth dam stands at a height of 29 feet and has a length of 340 feet, providing a storage capacity of 48 acre-feet. The dam also serves multiple purposes including grade stabilization, recreation, and creating a fish and wildlife pond.

With a low hazard potential and a condition assessment of "Not Rated," Grap Dam has not been inspected recently but is still considered to meet safety guidelines. The dam's spillway width is 16 feet, and it has no outlet gates. The structure is not owned or funded by any federal agency, making it a unique example of private ownership for water resource management in the region. Despite not being state regulated, the dam plays a crucial role in managing water flow and mitigating flood risks in the area.

Overall, Grap Dam stands as a testament to effective private ownership and design in water resource management. Its construction and multiple purposes make it a valuable asset for the community, providing not only flood protection but also opportunities for recreation and wildlife habitat enhancement. As climate enthusiasts and water resource advocates, we can appreciate the careful planning and engineering that went into creating this essential infrastructure for the region.