Waubonsie Creek Watershed Site 3, located in Mills County, Iowa, is a crucial water resource managed by the local government for fire protection, livestock use, and small fish pond purposes. This Earth dam structure, completed in 1994 with a height of 43 feet and a length of 583 feet, serves to reduce flood risks in the area while providing a storage capacity of 1605 acre-feet for water management. The dam is regulated by the Iowa Department of Natural Resources and undergoes regular inspections to ensure its satisfactory condition.

This site, situated along McPherron Creek, covers a drainage area of 5.64 square miles and has a surface area of 55.5 acres. With a low hazard potential and a moderate risk assessment rating, the dam at Waubonsie Creek Watershed Site 3 plays a significant role in water resource management in the region. The structure is designed by the USDA NRCS and maintained by the local government, contributing to the overall environmental sustainability and resilience of the area.

Under the oversight of the Omaha District, this dam exemplifies the collaborative efforts between federal and state agencies for effective water resource management. With a focus on flood risk reduction and sustainable water use, Waubonsie Creek Watershed Site 3 stands as a vital component of the region's infrastructure, ensuring the protection of local communities and ecosystems from potential water-related hazards.