The Upper Appleton Locks and Dam, also known as Little Lake Butte Des Morts, is a Federal-owned structure in Outagamie, Wisconsin, managed by the US Army Corps of Engineers. Completed in 1940, this concrete dam serves multiple purposes including flood risk reduction, hydroelectric power generation, navigation, recreation, and water supply. With a controlled spillway and four locks, the dam plays a crucial role in managing water levels and flow in the Fox River.

A recent risk assessment conducted by the USACE identified potential structural risks, including masonry wall failures and downstream scour that could impact the dam's integrity. To mitigate these risks, ongoing monitoring, regular inspections, and maintenance efforts are in place. In response to identified concerns, USACE has implemented various risk management measures, such as replacing tainter gates, repairing piers, and addressing scour holes to enhance the dam's reliability and long-term resilience. With proactive measures and collaborative efforts, the Upper Appleton Locks and Dam continues to operate effectively while ensuring public safety and environmental protection in the region.

For water resource and climate enthusiasts, the Upper Appleton Locks and Dam stands as a vital infrastructure for managing water resources in Wisconsin. Through its multi-purpose functions and risk management strategies, the dam exemplifies the importance of proactive maintenance and collaboration among stakeholders to ensure the safety and sustainability of critical water infrastructure. As a key component of the Fox River system, the Upper Appleton Locks and Dam plays a crucial role in flood control, power generation, and maintaining navigable waterways, highlighting the intersection of water resource management, climate resilience, and infrastructure maintenance in the region.