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The U.S. Highways in Tennessee are the segments of the United States Numbered Highway System that are maintained by the Tennessee Department of Transportation (TDOT) in the state of Tennessee. All of these highways in Tennessee have a state highway designation routed concurrently along them, though the state highway is hidden and only signed ...
Many of the routes are hidden in that they are overlaid on U.S. Routes and not signed. The mile markers throughout Tennessee, however, show the state route number for these hidden routes. The Tennessee Department of Transportation (TDOT) maintains these routes under the "State Highways" title of state law, [1] but
The Tennessee Department of Highways and Public Works was established by the Tennessee General Assembly in 1915 and tasked with constructing, maintaining, and improving roads throughout the state. That year, the 538-mile (866 km) Memphis to Bristol Highway, later State Route 1 , was designated as the first state highway in Tennessee.
The longest Interstate Highway in Tennessee is Interstate 40, at a length of 454.81 miles (731.95 km). The segment of I-40 in Tennessee is also the longest segment of all of the states the route traverses. The shortest mainline Interstate Highway in Tennessee is I-55, at a length of 12.28 miles (19.
At 455.28 miles (732.70 km), the Tennessee segment of I-40 is the longest of the eight states through which it passes and the state's longest Interstate Highway. [5] I-40 passes through Tennessee's three largest cities—Memphis, Nashville, and Knoxville—and serves the Great Smoky Mountains National Park, the most-visited national park in the ...
I-65 is maintained by the Tennessee Department of Transportation (TDOT), along with all other Interstate, US, and state highways in Tennessee. In 2022, annual average daily traffic (AADT) counts ranged from 18,886 vehicles per day at the Alabama state line (which is one of the lowest traffic volumes on any mainline Interstate Highway in Tennessee) to 177,202 vehicles per day on the concurrent ...
This section is the most heavily traveled section of highway in Tennessee, with an annual average daily traffic (AADT) volume of more than 210,000 vehicles. About five miles (8.0 km) later, at an interchange with the western terminus of I-640 , the northern bypass around Downtown Knoxville , I-75 splits north off of I-40 and onto a concurrency ...
U.S. Route 70 (US 70) enters the state of Tennessee from Arkansas via the Memphis & Arkansas Bridge in Memphis, and runs west to east across 21 counties in all three Grand Divisions of Tennessee, with a total length of 478.48 miles (770.04 km), to end at the North Carolina state line in eastern Cocke County.