Peterson Dam #2, located in Winfield, Iowa, is a private earth dam completed in 2005 for grade stabilization purposes. The dam stands at a height of 27 feet and spans a length of 615 feet, with a storage capacity of 170 acre-feet. It is situated on a tributary to Phillips Creek in Henry County and is regulated by the Iowa Department of Natural Resources. The dam serves multiple purposes including fish and wildlife pond creation, grade stabilization, and recreation.

Despite being classified as low hazard potential and not yet rated for condition assessment, Peterson Dam #2 plays a crucial role in managing water resources in the area. With a drainage area of 0.63 square miles and a normal storage capacity of 45 acre-feet, the dam helps to control water flow and prevent erosion. While there are no outlet gates, the spillway width is 12 feet, allowing for controlled release of excess water during heavy rainfall events.

The dam, designed by USDA NRCS, is owned and maintained by a private entity, highlighting the collaborative efforts between public and private sectors in water resource management. With its strategic location and multiple benefits, Peterson Dam #2 stands as a vital infrastructure for enhancing environmental sustainability and promoting recreational activities in the region.