Mississippi River Lock and Dam 11, also known as Pool 11, is a vital federal infrastructure located in Dubuque, Iowa. Completed in 1937, this concrete dam plays a crucial role in navigation along the Mississippi River, with a hydraulic height of 11 feet and a structural height of 43 feet. The dam's spillway type is controlled, with a spillway width of 1278 feet, and it features a single lock that is 600 feet long and 110 feet wide.

Despite being classified with a significant hazard potential, a risk assessment conducted by the US Army Corps of Engineers (USACE) in April 2019 deemed the risks associated with Lock and Dam 11 as normal. The assessment focused on potential issues such as a dam failure or a lock shutdown, with measures in place to mitigate these risks. Continuous inspections, maintenance activities, and an updated Emergency Action Plan contribute to the dam's well-maintained state and preparedness for any emergencies.

USACE is dedicated to reducing risks and ensuring the safety of the community surrounding Lock and Dam 11. With a focus on regular monitoring, updated emergency plans, and communication strategies, USACE works closely with state and local agencies to enhance emergency response capabilities and increase awareness among stakeholders and the public. This commitment to risk management and safety underscores the importance of Mississippi River Lock and Dam 11 in maintaining navigation and protecting the surrounding area from potential hazards.