Visit the SR 520 Orange Page for specific dates and times.
West Connection Bridge construction is underway on Lake Washington near Madison Park. During the weekend of June 6 through 9, crews removed a section of barrier west of the existing floating bridge and installed a new, temporary barrier. Crews will work on the two-foot section of roadway deck behind the barrier to chip concrete from the rebar in preparation for connecting the new bridge to the old highway. Check out the progress graphic for more information on current construction activities. This bridge is planned for completion by fall 2014.
In May, crews began joining the larger pontoons. Pontoons V and W were joined in mid-May. In early June, pontoons U and V will be joined. Soon, drivers will notice the new floating bridge beginning to take shape!
Construction of the segmental bridge, or balanced cantilever, near Lake Washington's Medina shoreline is nearly complete for the south (eastbound) section of roadway. In late June, crews will install a nearly 200- foot-long, steel transition span, connecting the fixed portion of the bridge to the floating bridge.
Pontoons are currently being stored in the lake's west side staging area. Crews have also begun adding rock ballast to some of the pontoons to prepare them for joining.
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.