Hamburg Flood Control (Pa-477) is a vital infrastructure project located in Windsor Township, Berks County, Pennsylvania, designed by the USDA NRCS to mitigate flood risks along the TR Mill Creek. Completed in 1965, this earth dam stands at a height of 52 feet and spans 1550 feet, providing a significant storage capacity of 371 acre-feet. Owned and regulated by the local government, this structure is subject to state permitting, inspection, and enforcement by the Pennsylvania Department of Environmental Protection.

The primary purpose of Hamburg Flood Control is flood risk reduction, serving as a critical defense against high hazard potential in the area. Despite being assessed as in fair condition, with a relatively small surface area of 3 acres and drainage area of 1.6 square miles, this dam plays a crucial role in protecting the surrounding community from potential inundation. With a last inspection date in November 2020 and an emergency action plan status unknown, ongoing maintenance and risk management measures are essential to ensure the continued effectiveness of this flood control structure in safeguarding the region against water-related disasters.