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Currently the state has 14,150 miles (22,770 km) of state-maintained roadways, including 1,233 miles (1,984 km) of Interstate Highways and 13,077 miles (21,045 km) of State Highways. [2] All of the U.S. Routes in Tennessee have a state route routed concurrently with them, though the state route is hidden and only signed along the green mile ...
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 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 ...
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.
State Route 347 (SR 347) is a state-maintained, secondary highway in eastern Tennessee, beginning at I-26 in the Rock Springs community of Kingsport and ending at the intersection of US 11W and SR 70 in Rogersville. The highway travels through a gap in Bays Mountain at the border between Sullivan and Hawkins counties.
State Route 44 (SR 44) is a state highway in the U.S. state of Tennessee. It runs from US 11E/US 19W/SR 34 in Bluff City, just south of the split of US 19W and US 19E, northeast via Hickory Tree and Holston Valley to the Virginia state line, where it becomes Virginia State Route 75. The entire highway is located within Sullivan County.
U.S. Route 31 (US 31) is a part of the United States Numbered Highway System that runs from Spanish Fort, Alabama, to Mackinaw City, Michigan.In the U.S. state of Tennessee, it runs concurrently with Interstate 65 (I-65) for the first mile northward from the Tennessee state line.
State Route 91 (SR 91) is a state highway in the northeastern portion of the U.S. state of Tennessee, in the area known as the Tri-Cities region. The route connects Johnson City with Damascus, Virginia via Elizabethton , Hunter , and Mountain City .