Madison Street is a two-way thoroughfare in the Lower East Side of the New York City borough of Manhattan that begins under the Brooklyn Bridge entrance ramp and ends at Grand Street. It is roughly sixteen large city blocks long. Due to security measures implemented after the September 11, 2001 terrorist attacks, public access to the part of the street before St. James Place is restricted. The character of Madison Street changes from block to block. There are housing projects east of Pike Street. Between Catherine Street and Pike Street the street is residential, dominated by mostly tenements. The street is considered one of the southern boundaries of Chinatown.