Pony Creek Watershed Site 17 in Mills County, Iowa, is a water resource site owned by the local government and regulated by the Iowa Department of Natural Resources. Designed by the USDA NRCS, this site serves multiple purposes including fire protection, stock watering, and small fish pond maintenance. Completed in 1965, the earth dam at this site stands at a height of 62 feet, with a storage capacity of 203 acre-feet and a drainage area of 0.18 square miles.

With a low hazard potential and satisfactory condition assessment, Pony Creek Watershed Site 17 is considered to have moderate risk (3) and is regularly inspected by state authorities. The dam's spillway is uncontrolled, and it has a surface area of 6.8 acres. Located in Pacific Junction, this site plays a crucial role in flood risk reduction and water management in the region. Despite its age, Pony Creek Watershed Site 17 continues to serve its intended purposes effectively, showcasing the importance of sustainable water resource infrastructure in climate-resilient communities.