Holly Twp 16, located in Walnut Grove, Minnesota, is a privately-owned earth dam designed by Duane Hansel for flood risk reduction along Plum Creek. The dam stands at a height of 25.4 feet with a length of 210 feet, providing a maximum storage capacity of 18 acre-feet and a normal storage of 8 acre-feet. Despite its low hazard potential, the dam is currently in poor condition as of the last inspection in May 2018.

Managed by the Minnesota Department of Natural Resources, this structure plays a vital role in protecting the surrounding area from potential flooding events. With a drainage area of 0.1 square miles, Holly Twp 16 serves as a crucial asset in water resource management in Murray County. Although the dam may require further maintenance to improve its condition assessment, its operational capabilities and state-regulated status ensure ongoing flood risk reduction measures.

For water resource and climate enthusiasts, Holly Twp 16 presents an intriguing case study in dam infrastructure and flood management. The collaboration between private ownership and state regulatory agencies highlights the importance of maintaining and inspecting critical structures to mitigate potential hazards. As discussions around climate change and its impact on water resources continue to evolve, understanding the role of dams like Holly Twp 16 becomes increasingly significant in safeguarding communities and natural ecosystems from the challenges of a changing climate.