Harmony Creek Watershed Site 4, located in Harrison County, Iowa, is a vital water resource managed by the local government with oversight from the Iowa Department of Natural Resources. This site, designed by the USDA NRCS, serves multiple purposes including fire protection, stock, and small fish pond management, as well as flood risk reduction. The dam at this site, completed in 1958, is an earth dam standing at 46 feet tall and stretching 1000 feet in length, with a storage capacity of 608 acre-feet and a drainage area of 1.63 square miles.

Despite its low hazard potential and moderate risk assessment, Harmony Creek Watershed Site 4 has not been rated for its condition, indicating the need for further evaluation. The site does not have an emergency action plan in place or updated contact information, raising concerns about preparedness in case of an emergency. Overall, this site presents an opportunity for water resource and climate enthusiasts to engage in monitoring and assessment efforts to ensure the continued safety and effectiveness of this crucial infrastructure in the Harmony Creek watershed.