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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 ...
The triangle marker design was the only design until November 1983, when Tennessee divided its routes into primary routes and secondary or "arterial" routes with the adoption of a functional classification system, creating a primary marker and making the triangle marker the secondary marker; primary marker signs were posted in 1984.
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.
Tennessee State Route 94; Tennessee State Route 95; Tennessee State Route 96; Tennessee State Route 97; Tennessee State Route 98; Tennessee State Route 99; Tennessee State Route 100; Tennessee State Route 101; Tennessee State Route 102; Tennessee State Route 103; Tennessee State Route 104; Tennessee State Route 105; Tennessee State Route 106 ...
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 .
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.