Seventh Avenue – co-named Fashion Avenue in the Garment District and known as Adam Clayton Powell Jr. Boulevard north of Central Park – is a thoroughfare on the West Side of the borough of Manhattan in New York City. It is southbound below Central Park and a two-way street north of the park. Seventh Avenue originates in the West Village at Clarkson Street, where Varick Street becomes Seventh Avenue South (which becomes Seventh Avenue proper after the road crosses Greenwich Avenue and West 11th Street). It is interrupted by Central Park from 59th to 110th Street. Artisans' Gate is the 59th Street exit from Central Park to Seventh Avenue. North of Warriors' Gate at the north end of the Park, the avenue carries traffic in both directions through Harlem, where it is called Adam Clayton Powell Jr. Boulevard. Addresses continue as if the street was continuous through Central Park, with the first block north of the park being the 1800 block. The United States Postal Service delivers mail using either street name. As is the case with "Sixth Avenue" and "Avenue of the Americas", long-time New Yorkers continue to use the older name. The street has two northern termini; an upper level terminates at the western end of the Macombs Dam Bridge, traveling over the Harlem River, where Jerome Avenue commences in the Bronx. A lower level continues a bit further north and curves into the lower level of West 155th Street. History Seventh Avenue was originally laid out in the Commissioners' Plan of 1811. The southern terminus of Seventh Avenue was Eleventh Street in Greenwich Village through the early part of the 20th century. It was extended southward, as Seventh Avenue South, to link up with Varick Street in 1914, and Varick was widened at the same time. Extension of the avenue allowed better vehicular connections between midtown Manhattan and the commercial district in what is now TriBeCa. It also permitted construction of the New York City Subway IRT Broadway – Seventh Avenue Line which opened in 1918. Extension of the avenue was under consideration for several years, and was approved by the New York City Board of Estimate in September 1911, when the first $3 million appropriation was made for the initial planning of the work. The extension had been urged by civic groups to meet the commercial needs of Greenwich Village. A significant number of old buildings