Stroyan Lake Dam, located in Lee County, Illinois, was completed in 1966 and is owned by a private entity. The dam, with a height of 14 feet and a length of 360 feet, primarily serves the purpose of recreation, providing a storage capacity of 62 acre-feet. Managed by the USDA NRCS, the dam is regulated by the Illinois Department of Natural Resources and undergoes regular inspections to ensure its safety.

With a low hazard potential and moderate risk assessment, Stroyan Lake Dam is equipped with an uncontrolled spillway and outlet gates. Despite its condition assessment not being available, the dam has a history of meeting regulatory guidelines and maintaining a safe operational status. Its location in the Willow Creek-offstream area offers recreational opportunities for visitors while also contributing to the local water resource management in the region. Overall, Stroyan Lake Dam stands as a significant structure in the water infrastructure of Illinois, serving both practical and leisure purposes for the community.