From Portland Afoot

Interstate 84, sometimes known as the Banfield Expressway after former Oregon Transportation Commission chair Thomas H. Banfield, is an Interstate highway that terminates at a junction with Interstate 5 on Portland's Inner Eastside. It runs east past Gresham, The Dalles, Hood River, eventually reaching Boise and ending in Echo, Utah.

Though Burnside Street is technically the dividing line between Northeast Portland and Southeast Portland, I-84 is a more effective barrier to north-south movement and development.

The freeway was the Portland metro area's first. Near the city center, it runs through Sullivan's Gulch, also home to Portland's first MAX light rail line and to a major Union Pacific railroad line.

There's another Interstate 84 on the east coast, running between the Scranton, Pennsylvania area and Sturbridge, Massachusetts.