Mississippi River Lock and Dam 5a, also known as Winona Levee, is a vital infrastructure located in Winona, Minnesota, along the Mississippi River. Built in 1936 by the US Army Corps of Engineers, this concrete dam serves the primary purpose of navigation, with additional functions for recreation. Standing at a height of 46 feet and stretching over 21,520 feet in length, the dam plays a crucial role in managing water levels and ensuring the safety of the surrounding areas.

With a significant hazard potential and a very high risk assessment rating, the US Army Corps of Engineers diligently monitors and manages flood risks associated with the dam. By conducting regular inspections, maintaining emergency action plans, and engaging with local stakeholders, the Corps strives to enhance public safety and preparedness in the event of a dam-related emergency. Despite the challenges of severe weather events and limited water storage capacity, the Corps remains committed to safeguarding the structural integrity of the dam and mitigating potential risks to the community.

As a key asset in the region, Mississippi River Lock and Dam 5a underscores the importance of proactive risk management and collaboration between federal agencies, local authorities, and the public. By implementing strategic measures and ongoing maintenance practices, the US Army Corps of Engineers aims to uphold the resilience and functionality of this critical infrastructure while ensuring the safety and well-being of all those who depend on its operations along the Mississippi River.