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In 1972, due to its expanding role in all modes of transportation, it was renamed the Tennessee Department of Transportation. In the 1980s, TDOT began the $3.3 billion Better Roads Program to clear a backlog of projects and improve aging roads. In 1989, the gas tax was set at 21.40 cents per gallon to help fund this project.
I-75 enters the East Tennessee region from Georgia, following the Tennessee Valley all the way through Knoxville to near Rocky Top, then climbs into the Cumberland Mountains before crossing over into Kentucky at Jellico. Of the six states that I-75 traverses, the segment in Tennessee is the shortest, at 161.86 miles (260.49 km).
The State Route System of Tennessee is maintained and developed by the Tennessee Department of Transportation (TDOT) in the U.S. state of Tennessee.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]
The Tennessee Department of Transportation (TDOT) maintains these routes under the "State Highways" title of state law, [1] but designates them as "state routes".
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 ...
County maps published by TDOT do not show the recent realignment of this highway, [6] however, the Official Transportation Map [4] and signs erected in the field reflect the change as stated above. For several years, SR 211 was detoured off its alignment using SR 105 , US 51, and SR 183 to avoid the closed section of roadway roughly from the ...
SR 79 from its western terminus (mile 0.00) to mile 6.66 has been repeatedly damaged by seasonal flooding and as a result TDOT uses gravel, crushed stone, sand and dirt to rebuild the road surface when it has been damaged from flooding. This section is unsigned in the field.
Maintained by TDOT: Length: 62.46 mi (100.52 km) Existed: October 1, 1923 [1] –present: Major junctions; South end: US 31 / US 41 / US 431 / US 41A in Nashville: I-65 in Nashville; SR 155 (Briley Parkway) in Nashville; SR 455 in Ashland City; SR 49 / SR 249 in Ashland City; SR 48 in Clarksville; US 41A Byp. / US 41A / US 79 in Clarksville