Texas State Highway 31

State Highway 31
State Highway 31
Route information
	Maintained by TxDOT
Length	149.813 mi (241.101 km)
Existed	1919–present
Major junctions
West end	US 84 near Waco
	I-45 / US 287 in Corsicana; US 175 in Athens; US 69 in Tyler; US 271 in Tyler; US 259 in Kilgore; I-20 near Kilgore;
East end	US 80 / Spur 63 at Longview
Location
Country	United States
State	Texas
Counties	McLennan, Hill, Navarro, Henderson, Smith, Gregg
Highway system
	Highways in Texas; Interstate; US; State Former; ; Toll; Loops; Spurs; FM/RM; Park; Rec;

State Highway 31 (SH 31) runs from U.S. 84 northeast of Waco via Corsicana, Athens, Tyler, Kilgore to U.S. 80 in Longview.