Radigan is a gravity dam located on the Upper Tamarack River in Douglas, Wisconsin. Completed in 1938, the dam serves primarily for recreational purposes, providing a storage capacity of 420 acre-feet and a surface area of 150 acres. With a structural height of 12 feet and a hydraulic height of 7 feet, Radigan also has a spillway width that allows for controlled discharge of up to 3595 cubic feet per second.

Despite its historical significance, Radigan has been classified as having a high hazard potential due to its poor condition assessment. The dam underwent modifications in 1964 and is currently regulated, permitted, inspected, and enforced by the Wisconsin Department of Natural Resources. With a risk assessment rating of "Very High (1)", there is a pressing need for risk management measures to be implemented to ensure the safety and integrity of the structure for both water resource management and climate-related concerns.

Overall, Radigan presents both a valuable recreational resource and a significant engineering challenge in terms of maintenance and risk management. As water resource and climate enthusiasts, it is essential to recognize the importance of proactive measures in safeguarding dams like Radigan to mitigate potential hazards and ensure the sustainability of water infrastructure in the face of changing environmental conditions.