Timber Lake Dam, located in Daggett, Illinois, along the tributary East Johnson Creek, was completed in 1960 by the USDA NRCS and serves as a recreational reservoir with a storage capacity of 155 acre-feet. This earth dam, with a height of 25 feet and length of 466 feet, is regulated by the Illinois Department of Natural Resources and undergoes regular inspections to ensure compliance with state regulations. The dam has an uncontrolled spillway and outlet gates, contributing to its significant hazard potential.

Despite its moderate risk assessment rating, Timber Lake Dam still poses a potential threat to the surrounding area in Carroll County, Illinois. The dam's structural height and hydraulic features, along with its buttress core design, necessitate careful monitoring and maintenance to mitigate risks associated with its significant hazard potential. With a primary purpose of recreation, the dam provides a serene setting for visitors to enjoy various water-based activities while also serving as a critical infrastructure element for the region.