BMT Nassau Street Line Totally Explained

Everything about The Nassau Street Line totally explained

The Nassau Street Line is a rapid transit line of the BMT Division of the New York City Subway system. It is served by the J, M, and Z trains. On NYC subway maps, station signs and train route signs the line is shown in brown.
The line starts in Manhattan and emerges to cross the Williamsburg Bridge and becomes the BMT Jamaica Line in Brooklyn.

History

After the original IRT opened, the city began planning new lines. Two of these were extensions of that system, to Downtown Brooklyn and Van Cortlandt Park, but the other two - the Centre Street Loop Subway (or Brooklyn Loop Subway) and Fourth Avenue Subway (in Brooklyn) - were separate lines for which construction hadn't progressed as far. The Centre Street Loop, approved on January 25, 1907 as a four-track line (earlier proposed as two tracks), was to connect the Brooklyn Bridge, Manhattan Bridge, and Williamsburg Bridge via Centre Street, Canal Street, and Delancey Street. An extension south from the Brooklyn Bridge under William Street to Wall Street was also part of the plan, as were several loops towards the Hudson River and a loop connecting the bridges through Brooklyn. Construction contracts for the main line in Manhattan were awarded in early 1907, despite no determination of the operator once completed. The line was assigned to a proposed Tri-borough system in early 1908 and to the Brooklyn Rapid Transit Company (BRT) in the Dual Contracts, adopted on March 4, 1913.
   The BRT began operating through a short piece of subway, coming off the Williamsburg Bridge under Delancey Street to Essex Street, on September 16, 1908. The Centre Street Loop was opened to Chambers Street (at the Brooklyn Bridge) on August 4, 1913, with temporary operation at first on the two west tracks. The south tracks on the Manhattan Bridge, also running into Chambers Street, were placed in service on June 22, 1915. An extension south from Chambers Street to the Montague Street Tunnel, known as the Nassau Street Loop, wasn't completed until May 30, 1931.
   Plans for the Chambers Street area changed several times during construction, always including a never-completed connection to the Brooklyn Bridge tracks. By 1910, only the west two tracks were to rise onto the bridge, and the east two were to continue south to the Montague Street Tunnel. As actually built for the 1931 opening south of Chambers Street, the two outer tracks ran south to the tunnel, while the two inner tracks continued several blocks in a lower level stub tunnel to allow trains to reverse direction.
   On September 20, 2004, northbound trains began running on the second track from the west, and the former northbound platforms at Canal Street and Bowery were closed off. The second track from the east was removed.

Station listing

	Station	Opened	Transfers and notes
Begins as the BMT Jamaica Line comes off the Williamsburg Bridge
	Essex Street	September 16, 1908	IND Sixth Avenue Line at Delancey Street
Chrystie Street Connection local tracks split
	Bowery	August 4, 1913
	Canal Street	August 4, 1913	BMT Broadway Line at Canal Street IRT Lexington Avenue Line at Canal Street
Former Connection to Manhattan Bridge
	Chambers Street	August 4, 1913	IRT Lexington Avenue Line at Brooklyn Bridge–City Hall
	Fulton Street	May 30, 1931	IRT Broadway–Seventh Avenue Line at Fulton Street IRT Lexington Avenue Line at Fulton Street IND Eighth Avenue Line at Broadway–Nassau Street
	Broad Street	May 30, 1931
Merges with the BMT Broadway Line and becomes the BMT Fourth Avenue Line via the Montague Street Tunnel (from the Nassau Street Line; from the Broadway Line)

Further Information

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