Located in Honey Brook Township, Pennsylvania, R G Struble Lake (Pa-431) is a local government-owned reservoir designed by the USDA NRCS and regulated by the Pennsylvania Department of Environmental Protection. Completed in 1971, this earth dam stands at 31 feet high and spans a length of 1500 feet, with a storage capacity of 2880 acre-feet for flood risk reduction. The dam also serves recreational purposes, offering a surface area of 146 acres for outdoor enthusiasts to enjoy.

Managed by the Natural Resources Conservation Service, R G Struble Lake boasts a satisfactory condition assessment and a high hazard potential, prompting regular inspections every year to ensure its structural integrity. The reservoir is situated along the East Branch Brandywine Creek, within the Chester County region, and serves as a vital water resource for the surrounding community. Despite its age, the dam has undergone modifications in 2005 and 2008 to meet modern safety standards, reflecting a commitment to safeguarding both the environment and public safety.

With its strategic location and crucial role in flood risk reduction, R G Struble Lake (Pa-431) stands as a testament to effective water resource management in Pennsylvania. As a popular destination for both recreational activities and environmental conservation, this earth dam continues to play a key role in preserving the watershed and enhancing the quality of life for local residents. Its blend of functionality and beauty makes it a must-visit site for water resource and climate enthusiasts seeking to witness sustainable infrastructure in action.