Mississippi River Lock and Dam 3, also known as Pool 3, is a federal structure located in Red Wing, Minnesota. Completed in 1938, this concrete dam serves primarily for navigation purposes on the Mississippi River. With a dam height of 26 feet and a hydraulic height of 38 feet, it helps maintain a constant pool level for river traffic, with a spillway width of 320 feet. The dam has a significant hazard potential and is classified as high-risk, but ongoing risk assessment measures are expected to reduce this to low-risk status.

US Army Corps of Engineers (USACE) continuously monitors and manages the dam-related flood risks by conducting regular inspections, maintenance, and repairs to ensure its proper functioning. The dam's risk management measures also include public engagement to raise awareness of potential hazards, particularly during river flood events. Recent modifications to the dam have focused on navigation improvements and rehabilitation of spot dikes to reduce accidents and potential overtopping during flood conditions. By prioritizing activities that address the most critical risks, USACE is working to enhance the safety and efficiency of Lock and Dam 3 for water resource and climate enthusiasts.

Overall, Lock and Dam 3 plays a crucial role in maintaining navigation on the Mississippi River while managing flood risks and ensuring public safety. With ongoing risk assessment and management measures in place, USACE is dedicated to reducing the dam's hazard potential and enhancing its resilience to potential threats. For water resource and climate enthusiasts, Mississippi River Lock and Dam 3 serves as a fascinating example of infrastructure designed to balance navigation needs with environmental and safety considerations in a dynamic riverine ecosystem.