Big Survey Lake Dam, also known as the Elgebar Corporation Dam, is a privately owned structure located in Colleton, South Carolina. Built in 1959, this earth dam stands at a height of 24 feet and spans a length of 1075 feet, creating a reservoir with a storage capacity of 874 acre-feet. The primary purpose of the dam is for recreation, offering a surface area of 95 acres for water enthusiasts to enjoy.

Despite its low hazard potential, the dam's condition assessment in 2017 revealed it to be in poor condition. With a history of state regulation and inspection, including enforcement mechanisms in place, the South Carolina Department of Health and Environmental Control (SC DHEC) oversees the dam's safety and compliance with regulations. Although the dam may require maintenance and possible improvements, it continues to serve as a recreational haven for visitors to Big Survey Lake. For water resource and climate enthusiasts, this dam presents an opportunity to explore the intersection of human infrastructure with natural ecosystems.