Pony Creek Watershed Site 15 in Iowa, managed by the local government and designed by USDA NRCS, serves multiple purposes including fire protection, stock, and small fish pond, as well as flood risk reduction. The earth dam, completed in 1965, stands at a height of 48 feet with a length of 453 feet, storing a maximum of 170 acre-feet of water. Located in Mills County near Pacific Junction, the dam regulates the flow of TR-Pony Creek, with a drainage area of 0.5 square miles and a surface area of 8 acres.

Despite being classified as having a low hazard potential and a moderate risk assessment, the condition of Pony Creek Watershed Site 15 is currently not rated. The dam's inspection frequency and emergency action plan status are unknown, but it is regulated, permitted, and inspected by the Iowa DNR. The structure, built on soil foundations, is primarily state-regulated and serves as a vital resource for water management in the area. With its strategic location and multifaceted purposes, Pony Creek Watershed Site 15 plays a crucial role in sustaining the local ecosystem and mitigating flood risks for the community.