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Route description. I-81 northbound at the SR 394 exit in Blountville. 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 ...
Interstate 81 (I-81) is a north–south (physically northeast–southwest) Interstate Highway in the eastern part of the United States.Its southern terminus is at I-40 in Dandridge, Tennessee; its northern terminus is on Wellesley Island, New York at the Canadian border, where the Thousand Islands Bridge connects it to Highway 137 and ultimately to Highway 401, the main Ontario freeway ...
State Route 81 (SR 81) is a 25.7-mile-long (41.4 km) state highway in northeastern Tennessee. It travels in Unicoi and Washington counties. It connects Fall Branch with Erwin. [1]
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.
01995-01-01. 1995. 02010-01-01. 2010. Proposed I-75 bypass of Knoxville, also proposed to be extended to I-40 at exit 407 (SR 66) to provide a complete northern beltway of Knoxville and provide a more direct route to Sevier County/Great Smoky Mountains National Park. SR 476. 11.8. 19.0. SR 50 in Broadview.
81.08 US 31 / US 31W / US 41 / US 431 – Nashville: US 31E / US 231 (Kentucky state line) near Westmoreland: 1926: current US 41: 194.58: 313.15 US 41 / US 76 (Georgia state line) – East Ridge: US 41 (Kentucky state line) near Adams: 1926: current US 43: 58.2: 93.7 US 43 (Alabama state line) – Saint Joseph
Interstate 81 in Virginia. Interstate 81 (I-81) is an 855.02-mile-long (1,376.02 km) Interstate Highway. In the US state of Virginia, I-81 runs for 324.92 miles (522.91 km), making the portion in Virginia longer than any other state's portion of the route. It is also the longest Interstate Highway within the borders of Virginia.
Interstate 81 in New York. Interstate 81 (I-81) is a part of the Interstate Highway System that runs from I-40 at Dandridge, Tennessee, to the Thousand Islands Bridge at Wellesley Island in New York, beyond which the short 2.7-mile (4.3 km) Ontario Highway 137 (Highway 137) links it to Highway 401. In the US state of New York, I-81 extends 183. ...