Expect Week of Overnight Delays Along Dulles Metro Corridor

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    Silver Line a longtime coming

    Construction of the aerial bridges that will carry tracks for the Dulles Corridor Metrorail Project over I-495 at Route 123 will begin Sunday night and continue through Friday, May 20.
    Crews will be using a large horizontal crane to build the bridges over I-495.

    Two lanes of northbound I-495 will be closed overnights from 11 p.m. to 5 a.m. Monday through Thursday and from 10:30 p.m. Friday night to 7 a.m. Saturday morning.
    Drivers should expect significant delays each night.