the I-495 interchange east to the Georgetown Branch railroad crossing in 1963, the same year the highway's interchange with I-495 opened. The Capital Crescent Trail's bridge across MD 190 was completed in 1996. Major intersections Auxiliary route MD 190A is the designation for the unnamed connector between MD 190 and the River Road Service Drive between Orkney Parkway and Braeburn Parkway in Bethesda. See also References External links MDRoads: MD 190 190 Maryland Route 190 Bethesda, Maryland Potomac, Maryland