145th Street is a major crosstown street in the Harlem neighborhood, in the New York Cityborough of Manhattan. It is one of the 15 crosstown streets mapped out in the Commissioner's Plan of 1811 that established the numbered street grid in Manhattan.[1] It forms the southern border of the Sugar Hill neighborhood within Harlem.
^REMARKS OF THE COMMISSIONERS FOR LAYING OUT STREETS AND ROADS IN THE CITY OF NEW YORK, UNDER THE ACT OF APRIL 3, 1807, accessed May 2, 2007. "These streets are all sixty feet wide except fifteen, which are one hundred feet wide, viz.: Numbers fourteen, twenty-three, thirty-four, forty-two, fifty-seven, seventy-two, seventy-nine, eighty-six, ninety-six, one hundred and six, one hundred and sixteen, one hundred and twenty-five, one hundred and thirty-five, one hundred and forty-five, and one hundred and fifty-five--the block or space between them being in general about two hundred feet."