The Frankford Transportation Center is a transportation terminal in Frankford, Philadelphia, Pennsylvania, United States. It was once known as the Bridge Street terminal before a complete reconstruction in 2003. Besides being the depot and terminus for many bus routes, it is the terminus of the Market-Frankford Line (MFL) (also called the Market-Frankford Subway-Elevated Line (MFSE), the El, or the Blue Line), a subway-elevated rapid transit line in Philadelphia, Pennsylvania, run by SEPTA, which begins at 69th Street Terminal just west of the Philadelphia city line in Upper Darby Township and runs mostly over and under Philadelphia streets to its terminus at the Frankford Transportation Center.