Located in Braddyville, Iowa, the Sump Dam is a private earth dam that was completed in 2013 for the primary purpose of grade stabilization. Designed by the USDA NRCS, this dam stands at 29 feet high and spans 414 feet in length, with a storage capacity of 33 acre-feet. Situated on a tributary to the Nodaway River, it serves multiple purposes including fire protection, stock watering, and small fish pond management.

With a low hazard potential and a condition assessment of "Not Rated," the Sump Dam is not regulated by the state of Iowa and does not require regular inspections or permitting. The dam has no outlet gates and is primarily constructed of stone on a soil foundation. Despite its relatively small surface area of 3 acres, this dam plays a crucial role in managing water resources in the area and contributes to the overall ecosystem health of the region.

While the Sump Dam may not be as prominent as larger dams in the region, its significance lies in its role in grade stabilization and water management. As a key structure designed by the Natural Resources Conservation Service, it serves as a testament to the importance of local initiatives in preserving water resources and adapting to the changing climate. For water resource and climate enthusiasts, the Sump Dam represents a valuable asset in the sustainable management of water resources in Iowa.