Saint Croix, located in Riverside, Wisconsin, is a gravity dam primarily used for recreation purposes. Completed in 1854, this structure stands at 15 feet tall with a hydraulic height of 8 feet and a structural height of 15 feet. It has a length of 2940 feet and a maximum storage capacity of 18,000 acre-feet. The dam sits on the Saint Croix River and has a drainage area of 282 square miles, with a maximum discharge of 8175 cubic feet per second.

Despite being classified as having a low hazard potential and fair condition assessment, Saint Croix poses a very high risk due to its age and the potential consequences in the event of a failure. The dam underwent modifications in 1936 and is regulated by the Wisconsin Department of Natural Resources (WIDNR). The last inspection was conducted in September 2013, with a recommended inspection frequency of 10 years. Emergency action plans are in place, but there is room for improvement in terms of risk management measures and adherence to guidelines.

Water resource and climate enthusiasts will be intrigued by Saint Croix's historical significance, structural characteristics, and risk profile. The dam's location, design, and management provide valuable insights into the challenges and opportunities associated with maintaining aging infrastructure in the face of evolving climate conditions. As a key recreational asset in the area, Saint Croix serves as a reminder of the importance of proactive monitoring, maintenance, and emergency preparedness to ensure the safety and sustainability of water resources in Wisconsin.