Broadway runs the length of Manhattan Island, roughly parallel to the North River (the portion of the Hudson River bordering Manhattan), from Bowling Green at the south to Inwood at the northern tip of the island. South of Columbus Circle, it is a one-way southbound street. Since 2009, vehicular traffic has been banned at Times Square between 47th and 42nd Streets, and at Herald Square between 35th and 33rd Streets as part of a pilot program; the right-of-way is intact and reserved for cyclists and pedestrians. From the northern shore of Manhattan, Broadway crosses Spuyten Duyvil Creek via the Broadway Bridge and continues through Marble Hill (a discontiguous portion of the borough of Manhattan) and the Bronx into Westchester County. U.S. 9 continues to be known as Broadway until its junction with NY 117.