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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]
Highway markers for U.S. Highway 70 and U.S. Highway 321 U.S Highways in Tennessee highlighted in yellow System information Maintained by TDOT Highway names Interstates Interstate XX (I-XX) US Highways U.S. Route XX (US XX) State State Route XX (SR XX) System links Tennessee State Routes Interstate US State The U.S. Highways in Tennessee are the segments of the United States Numbered Highway ...
Tennessee State Routes. Interstate. US. State. The Tennessee state routesdo not follow a systematic numbering system unlike the U.S. Highway Systemand some other states' highwaysystems. The routes are separated into primary and secondary routes though. Many of the routes are hidden in that they are overlaid on U.S. Routes and not signed.
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 (19.76 km) in Memphis.
U.S. Route 70. U.S. Route 70 ( US 70) enters the state of Tennessee from Arkansas via the Memphis & Arkansas Bridge in Memphis, and runs west to east across 21 counties in all three Grand Divisions of Tennessee, with a total length of 478.48 miles (770.04 km), to end at the North Carolina state line in eastern Cocke County.
In Tennessee, U.S. Route 412 ( US 412) stretches for 181.93 miles (292.79 km) through the farmland of West Tennessee and the hills of Middle Tennessee, starting at the Missouri state line (on I-155 at the Mississippi River) near Dyersburg and running to an interchange between I-65 and SR 99 in Columbia. [ 1][ 2]
Rec. Texas state highways are a network of highways owned and maintained by the U.S. state of Texas. The Texas Department of Transportation (TxDOT) is the state agency responsible for the day-to-day operations and maintenance of the system. Texas has the largest state highway system, followed closely by North Carolina's state highway system.
There are 95 counties in the U.S. State of Tennessee. As of 2023, Shelby County was both Tennessee's most populous county, with 910,042 residents, and the largest county in area, covering an area of 755 sq mi (1,955 km 2 ). The least populous county was Pickett County (5,128) and the smallest in area was Trousdale County, covering 114 sq mi ...