Johnson Dam, located in Hopkins, Missouri, is a local government-owned structure designed by USDA SCS for fire protection, stock, or a small fish pond. Completed in 1961, this earth dam stands at a height of 31 feet and spans a length of 290 feet, providing a storage capacity of 48 acre-feet with a surface area of 3.2 acres. Situated on TR-Brushy Creek in Taylor County, Iowa, the dam is regulated by the Iowa Department of Natural Resources and has a low hazard potential with a moderate risk assessment rating.

Despite being last inspected in 1972 and not currently rated for condition assessment, Johnson Dam continues to serve its primary purposes effectively. With state permitting, inspection, and enforcement in place, the dam ensures fire protection and water supply for the local community. The dam's uncontrolled spillway and soil foundation contribute to its operational reliability, while the moderate risk assessment underscores the importance of ongoing monitoring and management to mitigate potential hazards. For water resource and climate enthusiasts, Johnson Dam offers a glimpse into the intersection of infrastructure, environmental protection, and community resilience in the heart of the Midwest.