Will-O-B is a local government-owned dam located in Alexandria, Minnesota, along the Long Prairie-OS river. Completed in 1990, this Earth-type dam stands at a height of 13 feet and is primarily used for flood risk reduction. With a storage capacity of 340 acre-feet and a drainage area of 5 square miles, the dam plays a crucial role in managing water flow and reducing the risk of flooding in the surrounding area.

Despite its low hazard potential and satisfactory condition assessment, Will-O-B undergoes inspections every 8 years to ensure its continued safety and functionality. The dam features an uncontrolled spillway type and a length of 700 feet, with a maximum discharge capacity of 900 cubic feet per second. The risk assessment for Will-O-B is moderate, indicating a level of potential risk that is actively managed by regulatory agencies to maintain public safety and the integrity of the structure.

Overall, Will-O-B serves as a vital piece of infrastructure in the region, providing essential flood risk reduction measures and helping to protect the local community from potential water-related hazards. With its strategic location and effective design, this dam plays a significant role in water resource management and climate resilience efforts in Douglas County, Minnesota.