What interstate highway connects the cities of Boston and Seattle?
Interstate 82 Interstate 82 Interstate 82 (I-82) is an Interstate Highway in the Pacific Northwest region of the United States that travels through parts of Washington and Oregon. It runs from Ellensburg, Washington, to Hermiston, Oregon, passing through Yakima and the Tri-Cities area. The highway also connects I-90 and I-84, which continue to Seattle and Boise, Idaho, respectively. I-82 travels concurrently with U.S. Route 97 (US 97) between Ellensburg and Union Gap, and US 12 from Yakima to the Tri-Cities. Its only auxiliary route, I-182, connects the highway to Richland and Pasco in the Tri-Cities. I-82 primarily serves the Yakima Valley region,
Interstate 84 (Oregon–Utah) Interstate 84 (Oregon–Utah) Interstate 84 (I-84) is an Interstate Highway in the northwestern United States. The highway runs from Portland, Oregon, to a junction with I-80 near Echo, Utah. The sections running through Oregon and Idaho are also known as the Vietnam Veterans Memorial Highway. The highway originally served as a fork of I-80 to serve the Pacific Northwest, and was originally numbered Interstate 80N. The highway serves and connects Portland, Boise, and Salt Lake City. Seattle, Washington is indirectly served by I-84 via a connection with I-82. With the connection to I-80, I-84 connects these cities to points east.