Speltz Detention No. 2, located in Rollingstone, Minnesota, along Speltz Creek, was designed by the USDA NRCS and serves as a crucial flood risk reduction structure in the area. Completed in 1961, this earth dam stands at a height of 31 feet, with a dam length of 442 feet and a storage capacity of 52 acre-feet. The dam's primary purpose is flood risk reduction, and it is regulated by the Minnesota Department of Natural Resources.

With a low hazard potential and fair condition assessment, Speltz Detention No. 2 plays a vital role in mitigating flood risks in the region. The dam has not undergone any modifications in recent years and is equipped with uncontrolled spillways and outlet gates. Despite being privately owned, the structure is subject to state regulation, inspection, and enforcement, ensuring its continued functionality and safety for the community.

Overall, Speltz Detention No. 2 stands as a testament to effective water resource management and climate adaptation measures in Minnesota. As climate change continues to pose challenges in terms of water management and flood control, structures like this earth dam play a crucial role in safeguarding communities and infrastructure from the impacts of extreme weather events. With its moderate risk assessment and ongoing monitoring, Speltz Detention No. 2 exemplifies the importance of proactive infrastructure investment in building resilience against a changing climate.