Interstate 40 in Texas

Interstate 40
Interstate 40
	I-40 highlighted in red
Route information
	Maintained by TxDOT
Length	177.139 mi (285.078 km)
Existed	1959–present
NHS	Entire route
Major junctions
West end	I-40 at New Mexico state line
	US 385 in Vega; I-27 / US 60 / US 87 / US 287 in Amarillo; US 83 in Shamrock;
East end	I-40 at Oklahoma state line
Location
Country	United States
State	Texas
Counties	Deaf Smith, Oldham, Potter, Carson, Gray, Donley, Wheeler
Highway system
	Interstate Highway System; Main; Auxiliary; Suffixed; Business; Future; Highways in Texas; Interstate; US; State Former; ; Toll; Loops; Spurs; FM/RM; Park; Rec;

In the US state of Texas, Interstate 40 (I-40) runs west–east through the panhandle in the northwest part of the state. The only large city it passes through is Amarillo, where it meets the north end of I-27. The entire section of I-40 in Texas is designated as a Purple Heart Trail route.