 The two main streets were named Broad Street (the north–south artery, since designated Pennsylvania Route 611) and High Street (the east–west artery, since renamed Market Street) converging at Centre Square which later became the site of City Hall.Interstate 95 (the Delaware Expressway) traverses the southern and eastern edges of the city along the Delaware River as the main north–south controlled-access highway, connecting Philadelphia with Newark, New Jersey and New York City to the north and with Baltimore and Washington, D.C. southward.The city is also served by Interstate 76 (the Schuylkill Expressway), which runs along the Schuylkill River, intersecting the Pennsylvania Turnpike at King of Prussia and providing access to Harrisburg and points west.