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The western Interstate 84 runs from an intersection with Interstate 5 at Portland, Oregon to an intersection with Interstate 80 at Echo, Utah -- roughly the same route as the Oregon Trail. Starting in Portland, the interstate runs through the Columbia River Gorge and alongside the Columbia River Highway to The Dalles, then continues along the Columbia River to Boardman at which point it veers off in a southeasterly direction toward Ontario at the Idaho border.
The eastern Interstate 84 runs from Scranton, Pennsylvania at an intersection with Interstate 81 to Sturbridge, Massachusetts at an intersection with Interstate 90.
The Western Interstate 84
Number of miles
Major cities along the route
Intersections with other Interstates
Spur routes
The Eastern Interstate 84
Number of miles
Major cities along the route
Intersections with other Interstates
Spur routes
Notes