the portion of interstate 476 between interstate 95 and interstate 276 runs north–south through delaware and montgomery counties and is officially known as the mid-county expressway and the veterans memorial highway, as well as by the nickname the "blue route". the road's southern terminus is at a junction with interstate 95 near chester, a city southwest of philadelphia, near philadelphia international airport. heading north, the road immediately narrows to a four-lane parkway north of exit 1, macdade boulevard. it winds through the western philadelphia suburbs of wallingford and swarthmore, where i-476 comes to an interchange with baltimore pike just west of springfield. from here, the freeway continues north to springfield, where it meets u.s. route 1 at a three-level diamond interchange.