New York State Route 9A runs north-south along the Hudson River shore in New York County. It is a major north-south highway along the westside of Manhatthan/New York County. NY St Rt 9A passes through the following towns in New York County. New York City-Manhattan NY St Rt 9A is not multi-plexed in New York County. NY St Rt 9A intersects the following highways in New York County. Interstate 478, at Manhattan. Interstate 78, at Manhattan. New York State Route 495, at Manhattan. Interstate 95, at Manhattan. U.S. Rt. 1, at Manhattan. U.S. Rt. 9, at Manhattan. U.S. Rt. 9, at Manhattan.
A BGS on EB I-478. NB NY St Rt 9A in Lower Manhattan. A BGS on Canal Street. A BGS on WB I-78. A guide sign on Canal Street. A guide sign on Canal Street. A guide sign on Canal Street. A BGS on SB I-95/U.S. Rt. 1. A BGS on SB I-95/U.S. Rt. 1.