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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 ...
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.
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 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.
SR 7 begins concurrent with Alabama State Route 53 at Lewter Chapel Drive on the Alabama–Tennessee state line in Lincoln County as a secondary highway. They then go west and intersect SR 110 before separating from (AL) SR 53, entering Giles Gounty and Ardmore, Tennessee, and continuing west to an interchange with I-65.
State Route 10A (SR 10A) was an alternate route of SR 10 that ran from the US 231/SR 10/SR 25 junction at Paynes Store, in western Trousdale County, to the US 31E/SR 6 junction in the northeastern Sumner County community of Bransford. [3] It was re-designated as SR 376 as part of the 1983 Tennessee state highway renumbering.
The highway then enters Lebanon and passes through an industrial area and has an intersection with Maddox-Simpson Parkway before crossing an overpass over I-40. SR 266 continues north through industrial areas before entering downtown at an intersection with Tennessee Boulevard, where it becomes S College Street .
US 411 south (Highway 411/SR 33) – Madisonville: Southern end of US 411/SR 33 concurrency: 31.7: 51.0: SR 360 south (Unicoi Turnpike) – Fort Loudoun State Historic Park, Tellico Plains: Northern terminus of SR 360: 34.3: 55.2: US 411 north (Highway 411/SR 33) – Maryville: Northern end of US 411/SR 33 concurrency: Blount: No major ...