I-90 Ramp Project

A new on-ramp lane from Snoqualmie Parkway to westbound I-90 is complete. 

  • The new right-only on-ramp lane runs adjacent to the lane previously used by vehicles from Snoqualmie Parkway and State Route 18 (SR 18).
  • The original lane will now be dedicated to traffic turning left from SR 18 to westbound I-90.
  • Ramp meters were installed to evenly distribute vehicles merging onto westbound I-90. The meters will operate only when road sensors detect traffic back-ups.  

These modifications will provide congestion relief and improve traffic flow on Snoqualmie Parkway before the I-90/SR 18 Interchange Improvement Project is complete in 2023.


The overall investment is approximately $1.2 million, divided by a 50/50 match between the City of Snoqualmie and WSDOT. Contributions:

This is an aerial illustration of the Interstate 90 Ramp Project