Pony Creek Watershed Site 6u is a dam located in Mills County, Iowa, owned by the local government and regulated by the Iowa Department of Natural Resources. Built in 1965 by the USDA NRCS, this earth dam serves multiple purposes including fire protection, stock watering, and small fish pond management. With a height of 24 feet and a length of 901 feet, the dam has a storage capacity of 152 acre-feet and covers a surface area of 7.1 acres.

Despite being classified as low hazard potential, Pony Creek Watershed Site 6u is considered to have a moderate risk level, with a drainage area of 0.4 square miles. The dam has not been inspected since 2003 and is currently rated as "Not Rated" in terms of its condition assessment. While there are no associated locks or spillways, the dam serves a vital role in flood risk reduction for the area. The site is located in Pacific Junction and falls under the jurisdiction of the Iowa DNR.

Water resource and climate enthusiasts will appreciate the ecological significance of Pony Creek Watershed Site 6u, as it plays a crucial role in managing water resources for fire protection and wildlife habitat. The dam's construction by the USDA NRCS showcases the importance of sustainable water management practices in the region. As the dam continues to serve its purpose, it underscores the need for regular inspections and maintenance to ensure its long-term safety and effectiveness in mitigating flood risks along the Pony Creek.