U.S. Route 127
U.S. Route 127 (US 127) is a 758-mile-long (1,220 km) north–south U.S. Highway in the eastern half of the United States. The southern terminus of the route is at US 27 in Chattanooga, Tennessee. The northern terminus is at Interstate 75 (I-75) near Grayling, Michigan. Since 1987, it has been the core of the annual World's Longest Yard Sale, also known as the Highway 127 Corridor Sale (127 Yard Sale), which now stretches 690 miles (1,110 km) from Addison, Michigan, to Gadsden, Alabama. The sale, held every August, was created to demonstrate that the older U.S. Highway System has something to offer that the Interstate Highway System does not.
In Michigan, US 127 tripled in length in 2002 at the expense of its parent, US 27.
Route description
Tennessee
In Tennessee, US 127 traverses rural areas of the Cumberland Plateau in eastern Middle Tennessee and western East Tennessee, passing southward through the cities of Jamestown and Crossville, then follows the Sequatchie Valley, passing through the cities of Pikeville and Dunlap. Near Dunlap the route turns southeastward to cross Walden Ridge, passing Signal Mountain and ending at its junction with US 27 in the northern Chattanooga suburb of Red Bank. Before receiving a federal designation, the road was Tennessee State Highway 28 to Dunlap; that route still runs from Dunlap to I-24 at Jasper. Extension of Tenn. 111 as a four-lane highway across Walden Ridge east of Dunlap has taken most interstate traffic off 127 from Dunlap to Chattanooga.