Mountains to Sound Greenway - I-90
Visitor Services
Interstate 90 accommodates 20 million travelers each year with user facilities, including food, lodging, and automotive and tourist services available in Seattle and suburban cities along I-90.
Simple gas and quick-food services are also available at intervals no greater than 30 miles in the mountains. The Indian John Hill Rest Area on the eastern edge of the Greenway corridor serves both eastbound and westbound travelers.
NOTE: The America's Byways® website is federally funded and cannot promote commercial businesses. This data may not be complete or up to date. The National Scenic Byways Program is not responsible for the quality of your travel experience. See the right column on the Byway Overview page for local contact information.
Special Considerations
Interstate 90 provides a minimum of four lanes of high-speed, limited-access highway for the entire length of the Greenway corridor. All significant tourist stopping points can accommodate tour buses.
During the winter, the Department of Transportation is fully equipped for snow removal. The DOT has also designed I-90 to accommodate the need for vehicles to pull off the road and place chains on their tires. In 1997, the WSDOT installed a Vehicle Information System (VIS) that will monitor road conditions during winter months and transmit information to electronic signs at every highway interchange in order to provide travelers with up-to-the-minute road safety information.
Road conditions vary during the winter season, affecting travel time by lengthening the trip from a maximum of two hours to as many as four hours for the entire route.
Restrictions
Winter snow conditions on the I-90 Snoqualmie Pass regularly require the use of chains or other traction devices. However, the pass is rarely closed, and DOT winter crews are prepared for this contingency.
Seasons
- Best Time to Drive
Summer and Fall
- High Season
Summer and Winter (for sports)
Road Conditions
- To find up to date information about the road conditions along Mountains to Sound Greenway - I-90, please visit the FHWA listing of web sites for more information.
- Washington










