U.S. Route 31 in Tennessee

U.S. Route 31
U.S. Route 31
	US 31 in Tennessee highlighted in red
Route information
	Maintained by TDOT
Length	93.01 mi (149.69 km)
Existed	November 11, 1926–present
Major junctions
South end	I-65 / US 31 at Alabama state line
	I-65 near Elkton; US 31A at Pulaski; US 412 / US 43 at Columbia; US 431 at Franklin; US 41 / US 41A / US 70S / US 431 at Nashville; I-24 at Nashville;
North end	US 31E / US 31W / US 41 / US 431 at Nashville
Location
Country	United States
State	Tennessee
Counties	Giles, Maury, Williamson, Davidson
Highway system
	United States Numbered Highway System; List; Special; Divided; Tennessee State Routes; Interstate; US; State;

U.S. Route 31 (US 31) is a part of the United States Numbered Highway System that runs from Spanish Fort, Alabama, to Mackinaw City, Michigan. In the U.S. state of Tennessee, it runs concurrently with Interstate 65 (I-65) for the first mile northward from the Tennessee state line. There US 31 parallels I-65 to downtown Nashville. At Pulaski US 31 meets the southern terminus of US 31A in Tennessee. US 31 continues due north through Lynnville, Columbia, Spring Hill, Franklin and Brentwood to Nashville. The route splits into US 31E and US 31W in Nashville and go into Kentucky.

^ McNichol, Dan (2006). The Roads that Built America. New York: Sterling. p. 74. ISBN 1-4027-3468-9. OCLC 63377558.