Interstate 90 (I-90)

Seattle, WA to Boston, MA

Interstate 90

Seattle, WA to Boston, MA

I-90 is the longest US interstate at 3,020 miles, running from Seattle through Spokane, Billings, Rapid City, Sioux Falls, Chicago, Cleveland, Buffalo, Albany, and Springfield to Boston. It is the northern tier freight corridor connecting Pacific Northwest ports to the Northeast. Montana's open-range sections between Billings and Miles City can experience severe blizzard conditions with zero visibility, Cascade passes in Washington see heavy snow and chain requirements, and the Buffalo snow belt between Erie and Albany is among the most hazardous winter driving in the eastern US.

Length
3020 miles
Risk Rating
HIGH

Risk Factors

Montana blizzards (near-zero visibility) Cascade pass snow and ice (WA) Buffalo-Albany snow belt (NY) Great Plains ice storms (SD/ND) Homestake Pass grades (MT)

Notorious Segments

  • Homestake Pass, MT
  • Lookout Pass, MT/ID
  • Buffalo snow belt, NY

Connected Hubs

Seattle Chicago Boston

Regions

United States West Midwest Northeast