Long Lake, located in Washburn, Wisconsin, is a gravity dam completed in 1913 for recreational purposes, offering a surface area of 3290 acres and a maximum storage capacity of 35,000 acre-feet. This picturesque lake is regulated by the Wisconsin Department of Natural Resources and boasts a controlled spillway type with a hydraulic height of 7 feet and a structural height of 15 feet. With a drainage area of 82 square miles and a maximum discharge of 2660 cubic feet per second, Long Lake provides a serene setting for water resource and climate enthusiasts to explore and enjoy.

Despite its fair condition assessment and high hazard potential, Long Lake remains a popular destination for outdoor recreation, attracting visitors with its scenic beauty and abundant water activities. The dam's emergency action plan, last revised in 2012, helps mitigate risks associated with its very high hazard potential rating. With a history of modification in 1992 and regular inspections every two years, Long Lake is closely monitored to ensure public safety and environmental sustainability. As a vital part of the Detroit District, Long Lake stands as a testament to the importance of responsible water resource management in the face of changing climate patterns.

Long Lake's rich history and enduring appeal as a recreational haven underscore the critical role it plays in balancing human enjoyment with the need for effective dam management. As a gravity dam with a significant storage capacity and controlled spillway, Long Lake represents a harmonious blend of natural beauty and engineered infrastructure. With its high hazard potential and very high risk rating, Long Lake serves as a reminder of the challenges and responsibilities inherent in safeguarding water resources in an era of climate uncertainty. For water resource and climate enthusiasts, Long Lake offers a compelling case study in the intersection of human recreation, environmental stewardship, and infrastructure resilience.