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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 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.
In 1918, Wisconsin became the first state to number its highways in the field followed by Michigan the following year. [1] In 1926 the American Association of State Highway Officials (AASHO) established and numbered interstate routes (United States Numbered Highways), selecting the best roads in each state that could be connected to provide a national network of federal highways.
Albert Gore Sr. was a three-term United States Senator from Tennessee who co-sponsored the Federal Aid Highway Act of 1956, also known as the Interstate Highway Act. [3] 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 ...
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 ...
I-81 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) volumes ranged from 61,299 vehicles per day at the southern terminus to 34,896 vehicles per day between US 25E and SR 160 .
The Tennessee Department of Highways, predecessor to the Tennessee Department of Transportation (TDOT), was founded in 1915, and gradually assumed control of major routes throughout the state. The first 78 state routes were designated on October 1, 1923, [1] and additional routes were added over the course of the succeeding decades. By the time ...