Cranberry Lake, also known as George Von Hoffmann, is a private dam located in Vilas, Wisconsin, near Eagle River. This gravity dam serves primarily for recreational purposes, with a storage capacity of 72 acre-feet and a low hazard potential. The dam stands at a structural height of 8.1 feet and has a hydraulic height of 6 feet, controlling the flow of the Inlet Cranberry Lake.

Despite its fair condition assessment, Cranberry Lake poses a very high risk due to its location and potential impact on the surrounding area. The dam has been inspected periodically, with the last assessment conducted in November 2012. While the dam is regulated, permitted, inspected, and enforced by the Wisconsin Department of Natural Resources, there have been no major modifications or risk management measures implemented to address the identified high risk level.

Enthusiasts of water resources and climate in Wisconsin may find Cranberry Lake an intriguing case study, with its unique design, recreational purpose, and high risk profile. As climate change continues to impact water resources and infrastructure, understanding the management and maintenance of dams like Cranberry Lake becomes increasingly important for ensuring public safety and environmental sustainability in the face of changing hydrological conditions.