U.S. Route 80 in Texas

U.S. Highway 80
U.S. Highway 80
	US 80 highlighted in red
Route information
	Maintained by TxDOT
Length	155.251 mi (249.852 km)
Existed	1927–present
History	Continued into New Mexico prior to 1991.
Major junctions
West end	I-30 / US 67 at Dallas-Mesquite border; I-635 in Mesquite; Spur 557 near Terrell; US 69 in Mineola; US 271 in Gladewater; US 259 in Longview; ; Future I-369 / US 59 in Marshall; I-20 near Waskom
East end	US 80 at Louisiana state line
Location
Country	United States
State	Texas
Counties	Dallas, Kaufman, Van Zandt, Smith, Wood, Upshur, Gregg, Harrison
Highway system
	United States Numbered Highway System; List; Special; Divided; Highways in Texas; Interstate; US; State Former; ; Toll; Loops; Spurs; FM/RM; Park; Rec;

U.S. Route 80 (also known as U.S. Highway 80 and US 80) is a U.S. highway that begins in the state of Texas in Dallas at an interchange with I-30. US 80 runs in an east–west direction for most of its length from Dallas to Louisiana. Before the advent of the Interstate Highway System, US 80 through Texas was once a vital link in a major transcontinental highway with the national western terminus being in San Diego, California rather than Dallas. Since 1991, most of US 80 in Texas has been decommissioned in favor of I-10, I-20 and I-30 between the New Mexico state line and its current western terminus.