May 8, 2025
Starting May 15, SR 18 near Echo Glen will be closed through May 21. Staff, contractors, and visitors should expect delays and additional travel time when making plans to go to Echo Glen during the closure.
During this time, the Department of Transportation (WSDOT) will have alternate routes marked by detour signs.
Eastbound and westbound I-90 traffic will not be affected during the closure, but people traveling through the area should be aware that:
- Vehicles will not be permitted on either direction of SR 18 beneath the I-90 bridges.
- Traffic on the eastbound I-90 off-ramp will only be able to turn south onto westbound SR 18. No left turns onto eastbound SR 18/Snoqualmie Parkway will be allowed.
- Traffic on the westbound I-90 off-ramp will only be able to turn north onto Snoqualmie Parkway or continue onto the westbound I-90 on-ramp. No left turns onto westbound SR 18 will be allowed.
- Eastbound SR 18 traffic must use the eastbound I-90 on-ramp and follow a detour.
- Southbound traffic on Snoqualmie Parkway must use the westbound I-90 on-ramp and follow a detour.
For real-time traffic information, use the WSDOT app, WSDOT’s statewide travel map or follow WSDOT’s social media channels.