155th Street is a major crosstown street considered to form the boundary between Harlem and Washington Heights. It is the northernmost of the 155 crosstown streets mapped out in the Commissioner's Plan of 1811 that established the numbered street grid in Manhattan. COUNT 5
QSN1 How many crosstown streets are mapped in the Commissioner's Plan of 1811? ANS1 155 QSN2 Which street is the northernmost of the streets mapped in the Commissioner's Plan of 1811? ANS2 155th Street QSN3 Which street forms the boundary between Harlem and Washington Heights? ANS3 155th Street QSN4 What document established Manhattan's numbered street grid? ANS4 Commissioner's Plan of 1811 QSN5 155th Street forms the boundary between Harlem and what other neighborhood? ANS5 Washington Heights