Loon Lake Dike in Folsom, California, stands as a crucial structure for water resource management and climate resilience in the region. Built in 1963 by Bechtel, this earth dam serves primarily for hydroelectric power generation and recreation purposes, holding a storage capacity of 69,309 acre-feet. With a height of 20 feet and a length of 370 feet, the dam overlooks the picturesque Gerle Creek, offering a surface area of 1,450 acres for outdoor enthusiasts to enjoy.

Managed by the Federal Energy Regulatory Commission, the Loon Lake Dike is considered to have a low hazard potential, but a high risk assessment score of 2, indicating the need for stringent risk management measures. The dam's condition assessment is currently not available, but it undergoes regular inspections, with the last one conducted in August 2019. While the structure maintains its integrity, constant monitoring and maintenance are essential to ensure its long-term reliability and safety for the surrounding communities.

Despite its remote location in El Dorado County, the Loon Lake Dike plays a vital role in water supply management and flood control efforts in the area. With its state-regulated status and compliance with safety regulations, the dam stands as a testament to effective infrastructure planning and management, showcasing the importance of sustainable water resource practices in the face of a changing climate.