Johnson Pool is a private dam located in Freeborn County, Minnesota, designed by the USDA NRCS and completed in 1970. The primary purpose of this rockfill dam is flood risk reduction along Turtle Creek-TR. With a structural height of 20 feet and a length of 500 feet, Johnson Pool provides a storage capacity of 1454 acre-feet and covers a surface area of 77 acres.

Managed by the MNDNR EWR, Johnson Pool has a low hazard potential and a fair condition assessment as of the last inspection in 2013. The dam features uncontrolled spillways and outlet gates, with a maximum discharge capacity of 25 cubic feet per second. Even though the risk assessment is moderate, the dam meets regulatory standards with state permitting, inspection, and enforcement in place to ensure its safety and functionality for water resource management in the region.

Overall, Johnson Pool serves as a vital infrastructure for flood risk reduction in the area, providing storage capacity, discharge control, and regulatory compliance to protect the surrounding communities from potential water-related hazards. As climate enthusiasts and water resource stakeholders, understanding the design, purpose, and management of dams like Johnson Pool is essential for sustainable water management practices and climate resilience initiatives in the region.