(AP) — A dedication ceremony today for the opening of the second span of the new Woodrow Wilson Bridge caused major backups because motorists traveling from Maryland into Virginia slowed to watch preparations.\ \ \ Project spokeswoman Michelle Holland apologized for the delays. Speaking on WTOP radio, she urged drivers not to take their eyes off the road. Motorists called the radio station to complain about officials scheduling such an event during rush-hour. \ \ \ The ceremony is a milestone in the eight-year, $2.5 billion project to alleviate a major traffic bottleneck. U.S. Sen. John Warner of Virginia will have the honor of tightening the final bolt on the new span.\ \ \ However, it will be at least two more weeks before motorists will be able to use some of the travel lanes.