U.S. Route 109 is a north-south highway located in the state of Tennessee. It spans approximately 30 miles, connecting the cities of Gallatin and Portland. The route serves as a vital link for local traffic and provides access to various communities along its path. Established in the 1920s, U.S. Route 109 is part of the larger U.S. Highway System. It intersects with several major roads, enhancing connectivity in the region. The highway is primarily a two-lane road, offering scenic views of the surrounding countryside as it traverses through Sumner County.