Interstate 40 in Texas

Interstate 40
I-40 highlighted in red
Route information
Maintained by TxDOT
Length177.139 mi (285.078 km)
Existed1959–present
NHSEntire route
Major junctions
West end I-40 at the New Mexico state line in Glenrio
Major intersections
East end I-40 at the Oklahoma state line in Benonine
Location
CountryUnited States
StateTexas
CountiesDeaf Smith, Oldham, Potter, Carson, Gray, Donley, Wheeler
Highway system
SH 39 SH 40

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.