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This initial system consisted of 3,122.2 miles (5,024.7 km) of federal aid routes, and 1,522.2 miles (2,449.7 km) of state aid highways. [1] When the United States Numbered Highway System was created in 1926, most of the federal aid state routes were assigned a U.S. Route designation as part of this system, but retained their state designations.
Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes US 11: 124.86: 200.94 US 11 (Georgia state line) – Chattanooga: US 11E / US 11W / US 70 – Knoxville: 1926: current US 11W: 109.16: 175.68 US 11 / US 11E / US 70 – Knoxville: US 11W / US 421 (Virginia state line) – Bristol: 1929
Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes SR 1: 538.8: 867.1 I-55/US 61/US 64/US 70/US 79 (Memphis & Arkansas Bridge) in Memphis: US 11E/US 19/SR 34 in Bristol: 1915: current SR 2: 197.0: 317.0 US 41/US 70S/SR 1 in Murfreesboro: US 11/US 70/SR 1 in Farragut: 1923: current
The longest auxiliary Interstate Highway in Tennessee is I-840, an outer southern bypass around Nashville, at a length of 77.28 miles (124.37 km). The shortest Interstate Highway in Tennessee is the 1.97 miles (3.17 km) I-124 in Chattanooga, which is unsigned; the shortest signed Interstate Highway is I-275 in Knoxville, at 2.98 miles (4.80 km ...
US 31, US 431 and US 41 and US 41A then go around the Tennessee State Capitol Building and lose US 41A, the Rosa L. Parks name and the Tennessee Parkway designation. US 31, US 431 and US 41 then go over the Cumberland River on the Victory Memorial Bridge. US 31, US 431 and US 41 then have an interchange with I-24.
For the next two weeks the Tennessee Department of Transportation will be repairing the I-75 bridge over the Tennessee River near mile marker 74 in Loudon County.
The route begins with a 70-mile-per-hour (110 km/h) speed limit in Davidson County, which reduces to 65 mph (105 km/h) upon entering Sumner County less than a mile (1.6 km) later. About two miles (3.2 km) later the route has a trumpet interchange with a connector to US 31E , signed as US 31E.
The southernmost 1.8 miles (2.9 km) of I-65 was the first section of Interstate Highway in Tennessee to begin construction and open to traffic after the passage of the Federal-Aid Highway Act. [ 21 ] [ a ] Work began on this stretch on May 23, 1957, [ 22 ] and it was dedicated and opened to traffic on November 15, 1958. [ 23 ]