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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] All of the U.S. Routes in Tennessee have a state route routed concurrently with them, though the state route is hidden and only signed along the green mile ...
SR 20 at the Alabama state line in Wayne County: KY 97 at the Kentucky state line in Henry County: 1924: current SR 69A: 27.1: 43.6 SR 191 in Camden: US 641/SR 69 in Paris: 1965: current SR 70: 63.34: 101.94 NC 208 at the North Carolina state line in Greene County: SR 70 at the Virginia state line in Hancock County: 1924: current SR 71: 83.31
The U.S. Highways in Tennessee are the segments of the United States Numbered Highway System that are maintained by the Tennessee Department of Transportation (TDOT) in the state of Tennessee. All of these highways in Tennessee have a state highway designation routed concurrently along them, though the state highway is hidden and only signed ...
Counties of Tennessee Location State of Tennessee Number 95 Populations 5,128 (Pickett) - 910,042 (Shelby) Areas 114 sq mi (300 km 2) (Trousdale) -755 sq mi (1,960 km 2) (Shelby) Government County government Subdivisions cities, towns, unincorporated communities, census designated place There are 95 counties in the U.S. State of Tennessee. As of 2023, Shelby County was both Tennessee's most ...
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.
State Route 52 (SR 52) is an east–west state highway that crosses nine counties in northern and northeastern Tennessee. The 141.4-mile-long (227.6 km) route originates in Orlinda along SR 49 and ends in Elgin along U.S. Route 27 (US 27). SR 52 is mostly a primary route, but becomes secondary west of I-65.
State Route 9 (SR 9) is a west-to-east state highway in the U.S. state of Tennessee that is 131.33 miles (211.36 km) long. [ citation needed ] It begins in Campbell County and ends in Cocke County .
State Route 15 (SR 15) is a west–east route from Memphis to Monteagle. For much of its route it has an unsigned concurrency with U.S. Route 64 . SR 15 does travel through the southern part of all three Grand Divisions of the state: West Tennessee , Middle Tennessee , and East Tennessee .