Minidoka South Dike, located in Heyburn, Idaho, along the Snake River, is a crucial structure with a primary purpose of hydroelectric power generation. Built in 1906 by the Bureau of Reclamation, this rockfill dam stands at a height of 21 feet and stretches 788 feet in length, with a storage capacity of 210,200 acre-feet for irrigation, recreation, and power generation. The dam is regulated by the Bureau of Reclamation and inspected regularly to ensure its structural integrity and safety.

With a high hazard potential due to its location and function, Minidoka South Dike is closely monitored for any risks or issues that may arise. Despite its age, the dam continues to play a vital role in water resource management in the region, serving as a critical infrastructure for the surrounding communities. The dam has no spillway and a hydraulic height of 10 feet, making it essential for flood control and water management in the area.

As part of the Bureau of Reclamation's operations, Minidoka South Dike contributes to the overall water management strategy in Cassia County, Idaho. With its impressive history and ongoing maintenance, this dam stands as a testament to the importance of water resources and climate resilience in the region. Its continued presence ensures a reliable water supply for irrigation, recreation, and power generation for years to come.