Washington’s Top News » Maryland is proposing the addition of $7.6 billion in toll lanes along the entire Maryland portion of the Capital Beltway and the length of Interstate 270 by 2025. In response, Virginia now plans to extend both of its existing 495 Express Lanes to the Legion Bridge to provide a continuous trip around the Beltway. The Virginia extension is estimated to cost about $500 million that could be split between the private toll operators and state funding.