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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]
I-640 westbound at SR 62 (Western Avenue). I-640 has three lanes in each direction for its entire length, in addition to auxiliary lanes between some interchanges. In 2022, annual average daily traffic (AADT) counts ranged from 70,244 vehicles per day at the highway's eastern terminus to 104,064 vehicles on the western leg.
I-65 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) counts ranged from 18,886 vehicles per day at the Alabama state line (which is one of the lowest traffic volumes on any mainline Interstate Highway in Tennessee) to 177,202 vehicles per day on the concurrent ...
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. [4]
Reassurance shield incorrectly showing SR 25 as a secondary highway in Cross Plains (Image taken February 2021) SR 25 begins as a secondary highway in Robertson County in Barren Plains at an intersection with SR 161, and goes east to an intersection with US 431/SR 65 just north of Springfield.
The project was completed on August 19, 2021, at a cost of $133.5 million, making it the second-most expensive individual contract in state history at the time. [59] The second phase will widen the adjacent segment of I-24 west of the interchange and lengthen auxiliary lanes on I-75 about 1.5 miles (2.4 km) north of the interchange.
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Until the 2000s, SR 461 was signed as SR 49. [4] Although the road south of the LBL boundary became designated as SR 461 after the USDA Forest Service took over ownership of LBL, some road maps still identify the entire Tennessee section of the trace as SR 49.