Runway to Be Converted to Taxiway as Part of Major Airfield Program Glen Burnie, Maryland, 2014-8-8 — /Travel PR News/ — Today (August 6, 2014), Runway 4-22 at Baltimore/Washington International Thurgood Marshall Airport was closed permanently. As part of a multi-year, comprehensive series of airfield improvements, Runway 4-22 will be converted to a taxiway. BWI Marshall’s has… Read the full press release