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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]
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 ...
The Tennessee Department of Transportation ... county, and state road maps, aeronautical charts, and airport directories; ... 2019–2021 [16] Joe Galbato, 2021–2022;
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. [2]
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.
A Tennessee transportation official says there is no date set for I-40 to reopen, despite a Google Maps notification saying September 2025.
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 ...
The U.S. Department of Transportation is providing nearly $400 million to build a new Interstate 55 bridge connecting Tennessee and Arkansas across the Mississippi River, replacing the existing 75 ...