Wold Lake Dam, located in Bull Valley, Illinois, on Boone Creek, stands as a testament to the importance of water resources in the region. Completed in 1965, this private-owned Earth dam primarily serves the purpose of recreational activities, offering a serene retreat for locals and visitors alike. With a height of 11 feet and a length of 800 feet, the dam holds a storage capacity of 400 acre-feet, providing essential water management functions for the area.

Despite its age, Wold Lake Dam remains in good condition, with low hazard potential and a moderate risk assessment rating. The dam features an uncontrolled spillway with a width of 59 feet, ensuring safe discharge of excess water during peak flow events. Although the last inspection was conducted in August 2013, the dam is subject to regular state regulation, inspection, and enforcement to maintain its structural integrity and safety standards. While the exact volume of the dam is not provided, its critical role in water resource management for McHenry County is undeniable.

With its picturesque setting and vital role in water resource management, Wold Lake Dam stands as a symbol of the intersection between human engineering and natural ecosystems. As climate change continues to impact water resources, the importance of well-maintained dams like Wold Lake in preserving water quality and quantity for future generations cannot be understated. For water resource and climate enthusiasts, Wold Lake Dam serves as a case study in the ongoing efforts to balance human needs with environmental sustainability in a changing world.