The CANAMEX Trade Corridor, as defined by Congress in the 1995 National Highway Systems Designation Act, is a High Priority Corridor.
(from Public Law 104-59, November 28, 1995)
(26) The CANAMEX Corridor from Nogales, Arizona, through Las Vegas, Nevada, to Salt Lake City, Utah, to Idaho Falls, Idaho, to Montana, to the Canadian Border as follows:
(A) In the State of Arizona, the CANAMEX Corridor shall generally follow– (i) I-19 from Nogales to Tucson; (ii) I-10 from Tucson to Phoenix; and (iii) United States Route 93 in the vicinity of Phoenix to the Nevada Border.
(B) In the State of Nevada, the CANAMEX Corridor shall follow– (i) United States Route 93 from the Arizona Border to Las Vegas; and (ii) I-15 from Las Vegas to the Utah Border.
(C) From the Utah Border through Montana to the Canadian Border, the CANAMEX Corridor shall follow I-15.