Apple River is a captivating hydroelectric dam located in St. Croix, Wisconsin, with a rich history dating back to its completion in 1954. Managed by the Federal Energy Regulatory Commission, this masonry dam stands at an impressive height of 47 feet and boasts a storage capacity of 668 acre-feet. With a primary purpose of hydroelectric power generation, Apple River also offers recreational opportunities for enthusiasts to enjoy.

This picturesque structure spans the Apple River, with a drainage area of 555 square miles and a maximum discharge of 9000 cubic feet per second. The dam features a controlled spillway with a width of 35 feet and is equipped with slide and tainter gates for efficient water flow management. Despite its high hazard potential, Apple River is regularly inspected to ensure its structural integrity and safety compliance.

With its unique design and significant role in power generation and water management, Apple River stands as a testament to sustainable resource utilization. As a popular destination for both energy enthusiasts and outdoor adventurers, this dam continues to play a vital role in the local ecosystem and economy while showcasing the harmonious blend of technology and nature.