Harmony Creek Watershed Site 6, located in Missouri Valley, Iowa, is a key water resource managed by the local government. This site, designed by the USDA NRCS, serves multiple purposes including fire protection, stock, and small fish pond maintenance, as well as flood risk reduction. The earth dam, completed in 1958, stands at a height of 45 feet and spans 660 feet, with a maximum storage capacity of 210 acre-feet.

The dam, regulated by the Iowa DNR, has a low hazard potential and a moderate risk assessment rating of 3. While the condition assessment is not rated, the last inspection conducted in 1965 showed no significant issues. The site covers a surface area of 5 acres and drains a 0.34 square mile watershed area, making it a crucial component in managing water resources in the region.

With its strategic location along Harmony Creek and its role in mitigating flood risks, Harmony Creek Watershed Site 6 is a vital infrastructure for water resource and climate enthusiasts. Its efficient design, low hazard potential, and moderate risk assessment demonstrate its importance in safeguarding the surrounding environment and communities. As efforts continue to maintain and monitor the site, it serves as a model for sustainable water resource management practices in Iowa.