Driver Alert: Ongoing westbound closures through the summer
Crews will close one lane of westbound SR 520 two to three nights a week through the summer.
Crews will also close both lanes of westbound SR 520 on Thursday nights through May.
Visit the Orange Page for specific dates and times.
In February, crews completed repairs to Pontoon V from within an attached coffer cell. In early March, crews began repairs on Pontoon U. These repairs will be completed later this spring.
Crews continue to construct the cross beam on both cross pontoons: A and W. At the end of April, Cross Pontoon A will move to its permanent location at the west end of the floating bridge.
Construction of the segmental bridge, or balanced cantilever, near Lake Washington's Medina shoreline is well underway for the south (eastbound) section of roadway.
Pontoons are currently being stored in the lake's west side staging area. Crews have also begun adding rock to some of the pontoons to prepare them for joining.
West Connection Bridge construction is underway on Lake Washington near Madison Park. Crews have completed pile driving activities and have begun to install girders for this new bridge. Check out the progress graphic for more information on current construction activities.
Construction activities and project barges completely block the east navigation channel. These obstructions alter use of the east navigational channel and SR 520 drawspan. Read more information for boaters and SR 520 drivers.