Vos Dam, located in Plymouth County, Iowa, is a privately owned earth dam completed in 1979 with a primary purpose of fire protection, stock, or small fish pond. The dam stands at a height of 23 feet and stretches 390 feet in length, with a storage capacity of 51 acre-feet. It is regulated by the Iowa Department of Natural Resources and is situated along the Big Sioux River, serving as a crucial water resource for the surrounding area.

Despite being classified as having a low hazard potential, Vos Dam is considered to have a moderate risk level, with a risk assessment rating of 3. While the dam's condition is currently not rated, it undergoes state inspections, permitting, and enforcement to ensure its safety and functionality. The dam has an uncontrolled spillway type and is located on TR-Broken Kettle Creek, with a drainage area of 0.04 square miles, serving as a vital structure for water management in the region.

Water resource and climate enthusiasts will be intrigued by Vos Dam's role in providing fire protection, stock, and fish pond services, as well as its significance in managing water resources along the Big Sioux River. With its moderate risk level and state-regulated status, the dam showcases the importance of proper inspection and maintenance to ensure its continued functionality and safety for the surrounding community.