Located in Savanna, Illinois, Leroy Hinkle Dam, also known as Lake Carroll, is a private-owned structure that serves primarily for recreational purposes. The dam, designed by Robert Kimball Engineers, stands at a height of 74 feet and has a length of 1820 feet. Completed in 1974, it holds a normal storage capacity of 14,711 acre-feet and has a maximum discharge of 14,016 cubic feet per second.

Managed by the Illinois Department of Natural Resources, Leroy Hinkle Dam is regulated, permitted, inspected, and enforced by state authorities. The dam's spillway, with a width of 250 feet, is uncontrolled, and its hazard potential is categorized as high. Despite its moderate risk assessment, the dam's condition assessment is currently not available, indicating a need for further evaluation and potential risk management measures.

Situated along the East Fork Plum Creek, Leroy Hinkle Dam offers a picturesque setting with a surface area of 648 acres for water and climate enthusiasts to enjoy. Its strategic location, just 25 miles from the city, makes it a popular destination for outdoor activities and water recreation. As efforts continue to ensure the dam's safety and functionality, it remains a vital resource for the community and a focal point for environmental conservation and sustainable water management practices.