A 1950 Washington bridge carrying about 90,000 vehicles a day is getting a $114 million overhaul; engineers will replace its movable span with a fixed one floated into place during a single 56-hour closure

• As per the report, engineers will use accelerated bridge construction methods to limit disruption to one of the region's busiest transportation corridors.
• A bridge that has carried Washington traffic for more than seven decades is headed for a major transformation, but commuters may barely notice the most dramatic part of the work.