Interstate 84

The western Interstate 84 runs from an intersection with Interstate 5 at Portland, Oregon to an intersection with Interstate 80 at Echo, Utah[?].

Number of Miles 771

• Oregon - 377 miles
• Idaho - 275 miles
• Utah - 119 miles

Major Cities Along the Route

• Portland, Oregon
• Boise, Idaho

Intersections with other Interstates

• Interstate 5 in Portland, Oregon
• Interstate 82 in Hermiston, Oregon
• The western Interstate 86 in Heyburn, Idaho
• Interstate 15 in Tremonton, Utah. They stay joined until Odgen, Utah[?].
• Interstate 80 in Echo, Utah[?]

Spur Routes

• Boise, Idaho - I-184

The eastern Interstate 84 runs from Scranton, Pennsylvania at an intersection with Interstate 81 to Sturbridge, Massachusetts[?] at an intersection with Interstate 90.

Number of Miles 243

• Pennsylvania - 55 miles
• New York - 70 miles
• Connecticut - 107 miles
• Massachusetts - 11 miles

Major Cities Along the Route

• Scranton, Pennsylvania
• Hartford, Connecticut

Intersections with other Interstates

• Interstate 81 in Scranton, Pennsylvania
• Interstate 87 in Newburgh, New York[?]
• Interstate 91 in Hartford, Connecticut
• Interstate 90 in Sturbridge, Massachusetts[?]

Spur Routes

• Spur to White Plains, New York - I-684
• Spur to Quarryvile, Connecticut[?] - I-384

Notes Connecting these routes is easy, I-84 "joins" I-80 in Utah, and then joins I-81 in Pennsylvania.

Orginally the part of I-84 east of Hartford was numbered I-86 and I-84 was going to go to Providence. Only I-384 (and some memories of cryptic roadsigns saying first that I-84 was to become I-86 for no apparent reason, and then they said I-86 is now I-84) remains of this project.

The western Interstate 84 was originally numbered Interstate 80N. It was given its new designation in 1980.