Second Avenue Subway
|Second Avenue Subway|
Far top: The emblems of the Q and T trains, which are planned to serve the Second Avenue subway line.
Near top: The proposed connections of the Q, which will serve the first phase of the Second Avenue Subway. Phase I will offer Q service between Coney Island and 96th Street.
Main panel (bottom): Map of the T, which is planned to eventually serve the full line between 125th Street and Hanover Square, and the Manhattan portion of the Q, which will serve the line above 72nd Street.
|System||New York City Subway|
|Status||Phase I under construction, Phase II planned|
|Locale||Manhattan, New York City, United States|
|Opened||First phase: December 30, 2016(projected)|
|Owner||City of New York|
|Operator(s)||New York City Transit Authority / MTA Capital Construction|
|Line length||8.5 mi (13.7 km)|
|No. of tracks||2|
|Track gauge||4 ft 8 1⁄2 in (1,435 mm)|
|Electrification||600 V DC third rail|
The Second Avenue Subway (officially the IND Second Avenue Line; abbreviated to SAS) is a future New York City Subway line that has been proposed since the late 1910s. Since 2007, Phase I, a new line between the existing BMT 63rd Street Line and 96th Street and Second Avenue, has been under construction beneath Second Avenue in the New York City borough of Manhattan. This first phase is scheduled to open on December 30, 2016, and will serve about 200,000 daily riders. When the whole line is completed, it is projected to serve about 560,000 daily riders. By December 2015, the first phase of construction was more than 90% complete.
The line was originally proposed in 1919 as part of a massive expansion of the as-yet-unbuilt Independent Subway System (IND). Work on the line never commenced, as the Great Depression crushed the economy of the state and country. In anticipation of the never-built Second Avenue Subway, the Second and Third Avenue elevated lines were demolished in 1942 and 1955, respectively, and the Lexington Avenue Subway, the only remaining rapid transit line on much of Manhattan's east side, is by far the busiest subway line in the United States with an estimated 1.3 million daily riders. Numerous plans for the Second Avenue Subway appeared throughout the 20th century, but these were usually deferred due to lack of funds. Construction on the line started in the 1970s, but was halted with only a few small segments completed.
After several false starts, the most recent and financially secure construction plan was launched when a tunnelling contract was awarded to the consortium of Schiavone/Shea/Skanska (S3) by the Metropolitan Transportation Authority (MTA) on March 20, 2007. This followed preliminary engineering and a final tunnel design completed by a joint venture between AECOM and Arup. Parsons Brinckerhoff is serving as the Construction Manager of the project. This contract, and the full funding grant agreement with the Federal Transit Administration, which was received in November 2007, is for Phase I of the project, consisting of two miles (3.2 km) of tunnel and three stations that cost $4.45 billion. The total cost of the 8.5-mile (13.7 km) line is expected to exceed $17 billion.
A ceremonial ground-breaking for the Second Avenue Subway was held on April 12, 2007. The contractor prepared the initial construction site at 96th Street on April 23, 2007. The tunnel boring machine launch box was completed in May 2010, and on May 14, MTA's contractors completed the TBM installation and turned it on. On March 28, 2011, S3, having completed the west tunnel to 65th Street, began drilling for the east tunnel, which completed its run to the 63rd Street station's bellmouth on September 22, 2011.
- 1 Initial attempts
- 2 2000s–present: Construction and development
- 3 Planned service pattern
- 4 See also
- 5 Notes
- 6 References
- 7 External links
Second Avenue Subway
From 1919 through the 1980s, several different entities came up with many distinct plans for the Second Avenue subway line that were never carried out. The complex reasons for these delays are why the line is sometimes called "The Line That Time Forgot".
1919–41: Initial planning
After World War I, the New York City Subway experienced a surge in ridership. By 1920, 1.3 billion annual passengers were riding the subway, compared to 523 million annual riders just seven years before the war. In 1919, the New York Public Service Commission launched a study at the behest of engineer Daniel L. Turner to determine what improvements were needed in the city's public transport system. Turner's final paper, titled Proposed Comprehensive Rapid Transit System, was a massive plan calling for new routes under almost every north-south Manhattan avenue, extensions to lines in Brooklyn and Queens, and several crossings of the Narrows to Staten Island. Massively scaled-down versions of some of Turner's plans were found in proposals for the new city-owned Independent Subway System (IND). Among the plans was a massive trunk line under Second Avenue consisting of at least six tracks and numerous branches throughout Brooklyn, Queens, and the Bronx. Turner also proposed that the two elevated lines be knocked down to make room for the 6-track Second Avenue Subway.:203 The plan was to connect the new line to the then-unbuilt Sixth Avenue and Eighth Avenue subway lines.
In January 1927, Turner submitted a revised proposal. It was now going to connect to a Tenth Avenue trunk line as well as to crosstown lines in the Bronx and Queens. The Second Avenue Subway was still a six-track line through Manhattan, except for a short eight-track tunnel at its junction with the Queens lines. The plan called for a connection to the IND Concourse Line in the Bronx, as well as another one to the IND Fulton Street Line in Brooklyn. Such a plan would have cost $165,000,000 (equivalent to $2,248,000,000 in 2016), including connections and underwater crossings. As the IRT Lexington Avenue Line got more crowded, some suggested ideas that were considered unusual. One suggestion included a new tunnel under Lexington Avenue, while another included a tunnel under a separate right-of-way between Second and Third Avenue.
In 1929, the Board of Transportation of the City of New York tentatively approved the expansion, which included a Second Avenue Line with a projected construction cost of $98,900,000 (equivalent to $1,351,000,000 in 2016), not counting land acquisition. From north to south, the 1929 plan included four tracks from the Harlem River (where it would continue north as a Bronx trunk line with several branches) to 125th Street, six tracks from 125th Street to a link with the Sixth Avenue Line at 61st Street, four tracks from 61st Street to Chambers Street, and two tracks from Chambers Street to Pine Street. The plan was soon modified with the addition of another Bronx branch, as well as an extension of the subway to Water and Wall Streets.:203 At the time, it was supposed to be completed between 1938 and 1941. In anticipation of the line's opening, real estate prices along the proposed route rose by an average of 50%.
Due to the Great Depression, the soaring costs of the expansion became unmanageable. Construction on the first phase of the IND was already behind schedule, and the city and state were no longer able to provide funding. By 1930, the line was shortened to between 125th and 34th Streets, with a turnoff at 34th Street and a crosstown connection there; this line was to be complete by 1948. The line above 32nd Street was to start construction in 1931, with construction of a southern extension to Houston Street to commence in 1935; these segments would open in 1937 and 1940, respectively. This scaled-down plan was postponed in 1931. By 1932, the Board of Transportation had come up with another plan, which omitted a branch in the Bronx in order to cut costs.:204–205 The new line's southern terminus would be truncated to the Nassau Street Loop.
Further revision of the plan and more studies followed. By 1939, construction had been postponed indefinitely, and Second Avenue line was relegated to "proposed" status, and was number 14 on the Board of Transportation's list of important transportation projects. The Second Avenue line was also cut to two tracks, but now had a connection to the BMT Broadway Line. The reduced plan now had a single northern branch through Throggs Neck, Bronx, and a branch south into Brooklyn, connecting to a stub of the IND Fulton Street Line at Court Street station, which is now the site of the New York Transit Museum.:205 The subway was now also US$249 million (equivalent to $4,006,000,000 in 2016). The United States' entry into World War II in 1941 halted all but the most urgent public works projects, delaying the Second Avenue Line once again.
1940s–50s: After World War II
As part of the unification of the three subway companies that comprised the New York City Subway, elevated lines were being shut down all over the city and replaced by subways, continuing the IND's trend of phasing out elevated lines and streetcars in favor of new subways. For example, the IND Sixth Avenue Line replaced the Sixth Avenue Elevated, while the IND Fulton Street Line replaced the Fulton Street Elevated. Demolition of the elevateds also had the perceived effect of revitalizing the neighborhoods.:205–206 The northern half of the Second Avenue Elevated, serving the Upper East Side and East Harlem closed in 1940; The southern half, running through Lower Manhattan, East Midtown and across the Queensborough Bridge to Queens, closed on June 13, 1942. The demolition of the Second Avenue elevated caused overcrowding on the Astoria and Flushing Lines in Queens, which no longer had direct service along Manhattan's far East Side.:208 Because of the elevated line's closure, as well as a corresponding increase in the East Side population, the need for a Second Avenue subway increased.
In 1944, Mayor Fiorello H. La Guardia announced that work on the Second Avenue subway line was progressing.:209 The same year, BOT superintendent Philip E. Pheifer came up with a map of train frequencies for the line, with about 56 trains per hour projected to go through the Second Avenue line. Pheifer also put forth a proposal for Second Avenue Subway services, which would branch extensively off to B Division lines, including the IND Sixth Avenue Line, BMT Broadway Line, and BMT Nassau Street Line, via pre-existing BMT trackage over the Manhattan and Williamsburg Bridges.:209–210 From Canal Street to 57th Street the line was to be four tracks, with six tracks north of 57th Street. South of Canal Street there would be two tracks. The subway was to be opened by 1951. In addition, a new Bronx Branch would replace the Third Avenue El in the Bronx. By 1945, though, plans for the Second Avenue Subway were again revised. The southern two-track portion was abandoned as a possible future plan for connecting the line to Brooklyn, through a Bronx route to Throggs Neck was put forth.:210–211
Under Mayor William O'Dwyer and General Charles P. Gross, another plan was put forth in 1947 by Colonel Sidney H. Bingham, a city planner and former Interborough Rapid Transit Company (IRT) engineer. O'Dwyer and Gross believed that construction of a Second Avenue subway line would be vital to both increasing capacity on existing lines and allowing new branch lines to be built.:209 This plan would again connect the Second Avenue Line to Brooklyn. As with Pheifer's proposal, a train frequency map was created; however, Bingham's proposal involved more branch lines and track connections. A connection to Brooklyn was to be made via the Manhattan and Williamsburg Bridge, and would allow trains from these bridges to go onto the Sixth Avenue Line or the Second Avenue Line. Other connections to the Second Avenue Line were to be provided at 57th Street, via a line connecting to the Sixth Avenue Line; two express tracks would be built along that line north of West Fourth Street. The IRT Pelham Line would be switched to the combined IND/BMT division (this plan also includes other connections, which have been built), and connected to the Second Avenue Line. The Second Avenue Line would end just north of that connection, at 149th Street, with transfers to the IRT White Plains Road Line and the elevated IRT Third Avenue Line, the latter of which would be demolished south of 149th Street.:209 There would also be a connection to the IND Concourse Line. The line was to be built in sections. The Manhattan section was top-priority, but the Brooklyn section was 19th on the priority list, and the Bronx section did not have a specific priority.:209
By the next year, New York City had budget shortfalls. The City was short of $145 million (in 1948 dollars) that were needed for rehabilitation and proposed capital improvements, which cost a total of $800 million. The City petitioned the New York State Legislature to exceed its $655 million debt ceiling so that the city could spend $500 million on subway construction, but this request was denied.
The New York Board of Transportation ordered ten new prototype subway cars made of stainless steel from the Budd Company. These R11 cars, so called because of their contract number, were delivered in 1949 and specifically intended for the Second Avenue Subway. They cost US$100,000 (equivalent to $1,000,000 in 2016) each; the train became known as the "million dollar train". The cars featured porthole style round windows and a new public address system. Reflecting public health concerns of the day, especially regarding polio, the R11 cars were equipped with electrostatic air filters and ultraviolet lamps in their ventilation systems to kill germs.
By 1949, Queens and Lower Manhattan residents complained that the Second Avenue Subway would not create better transit options for them. A year later, revised plans called for a connection from Second Avenue at 76th Street to Queens, under 34th Avenue and Northern Boulevard, via a new tunnel under the East River. Connections would also be made to the Long Island Rail Road (LIRR)'s Rockaway Beach Branch.[note 1] New York voters approved a bond measure for its construction in 1951, and the city was barely able to raise the requisite $559 million for the construction effort. However, the onset of the Korean War caused soaring prices for construction materials and saw the beginning of massive inflation. Money from the 1951 bond measure was diverted to buy new cars, lengthen platforms, and maintain other parts of the aging New York City Subway system. Out of a half-billion-dollar bond measure, only $112 million (equivalent to $1,021,000,000 in 2016), or 22% of the original amount, went toward the Second Avenue Subway. By then, construction was due to start by either 1952 or 1957, with estimated completion by 1958 at the earliest. Because many people thought that the bonds were solely to be used on the new subway, many people accused the New York City Transit Authority (NYCTA) of misusing the bonds.
A block to the west of the proposed subway line, the Manhattan section of the Third Avenue Elevated, the only other elevated line in the area, closed on May 13, 1955. Contrary to what many East Side residents thought, the demolition of the elevateds did not help the travel situation, as the Lexington Avenue Line was now the only subway transportation option on the East Side.
By 1957, it had been made clear that the 1951 bond issue was not going to be able to pay for the Second Avenue Line. The money had been used for other projects, such as the integration of the IRT Dyre Avenue Line, and IND Rockaway Line, and reconfiguration of the DeKalb Avenue Interlocking.:216 By then, the New York Times despaired of the line's ever being built. In March of that year, NYCTA chairman Charles L. Patterson stated that the NYCTA had used the bond funds properly and that the bonds were not dedicated solely to fund the Second Avenue Line. He stated that the bonds had been allocated to the corridor based on increasing ridership on the Second Avenue Line, but admitted that currency inflation, as well as necessary rehabilitation work to the existing lines, made the Second Avenue Line unlikely in the near future.
1960s–1990s: Original construction efforts
As the early 1960s progressed, the East Side experienced an increase in development, and the Lexington Avenue Line became very overcrowded. In 1964, Congress passed the Urban Mass Transportation Act, promising federal money to fund mass transit projects in America's cities via the Urban Mass Transportation Administration (UMTA). At the same time, construction on a connection between the Manhattan and Williamsburg Bridges and the Sixth Avenue Line began in 1962. This segment, the Chrystie Street Connection, was first proposed in the 1947 plan as the southern end of the Second Avenue line. When opened in 1967, the connection included two new stations on the Sixth Avenue Line—57th Street and Grand Street—and introduced the most significant service changes ever carried out in the subway's history.:216–217 Grand Street, located under Chrystie Street (the southern end of Second Avenue) was designed to include cross-platform transfers between the Sixth Avenue and Second Avenue Line. Other parts of that plan were carried out, including the connection to the Sixth Avenue and Broadway Lines under 57th Street (moved to 63rd Street) and the abandonment of the IRT Third Avenue Line south of 149th Street, but the rest of the Second Avenue Line was not built.:216–217
Three years later, voters approved a $2.5 billion Transportation Bond Issue (worth about $17,742,000,000 in current dollars), which provided over $600 million for New York City projects (equivalent to $4,258,000,000 in 2016), including for a 1968 Program for Action. The Second Avenue project, for a line from 34th Street to Co-op City, Bronx, was given top priority. Soon afterward, the United States Department of Transportation published a report about future transport upgrades for the New York City area, including for the Second Avenue Subway, which was to get connections to the Sixth Avenue, Broadway, and Fulton Street lines. The City secured a $25 million UMTA grant for initial construction.:219 The planned stops on the line proved controversial; with only six stops at 34th, 48th, 57th, 86th, 106th, and 125th Streets, the Second Avenue line was criticized as a "rich man's express", as it skipped many parts of the East Side in addition to bypassing the Lower East Side entirely.:218 People protested for almost a year over the lack of stations at 72nd and 96th Streets; while a 72nd Street station was added in 1971, the 96th Street station was still not in the official plans, despite the proximity of the Metropolitan Hospital Center to the proposed station.:220
Despite the controversy over the number of stops, a groundbreaking ceremony was held on October 27, 1972 at at Second Avenue and 103rd Street. Construction began shortly thereafter on what was to be the 99th–105th Streets segment, which was projected to cost $17.48 million. Construction costs for the entire line were pegged at $1 billion, and rose to $1.3 billion a year later. On October 25, 1973, the line's Chinatown segment commenced construction at Canal Street under the foot of the Manhattan Bridge; this segment, between Canal and Pell Streets, was due to be completed by 1980 and was being built at a cost of $8.3 million. Less than a year later, on July 25, 1974, construction for an East Village segment of the line started near Second Street, spanning between 2nd Street and 9th Street. Another contract, for a Midtown segment between 50th and 54th Streets, was awarded that year, but construction never commenced. In total, construction on the Second Avenue Line during the 1970s spanned over 27 blocks. A segment between 110th and 120th Streets in East Harlem was also completed at a cost of $34.45 million.
However, the city soon experienced its most dire fiscal crisis yet. The stagnant economy of the early 1970s, combined with the massive outflow of city residents to the suburbs, led to a fiscal disaster for the city. By 1974, New York City mayor Abraham Beame was considering reallocating $5.1 billion of funding from the Second Avenue Line to the existing infrastructure, which was rapidly deteriorating and in dire need of repair. In September of the following year, Beame issued a stop-work order for the line. The tunnels were ordered sealed, and no other funding was to be allocated to the line's construction. Construction of the line was halted, with only three sections of tunnel having been completed, excluding the Chrystie Street Connection and the connected BMT 63rd Street Line. By 1978, when the New York City Subway was at its lowest point in its existence, State Comptroller Arthur Levitt stated that there were no plans to finish the line.
Over the next twenty years, plans for the subway line mostly stagnated. New York governor Mario Cuomo planned to allocate $22 million for the design of a renewed Second Avenue line in the 1990s, but this was rejected in 1993. Of this failure to complete construction, Gene Russianoff, an advocate for subway riders since 1981, stated: "It's the most famous thing that's never been built in New York City, so everyone is skeptical and rightly so. It's much-promised and never delivered."
Reuse of completed segments
Of the three completed segments, the 110th–120th Streets and Pell–Canal Streets sections have no infrastructure or track, but the section between 99th and 105th was being renovated with tail tracks by December 2013 in anticipation for being used as train storage in Phase I of the SAS. The section between 110th and 120th Streets will be used in Phase II of the project (96th to 125th), and in 2007, the MTA reported that this segment was in pristine condition. The section of tunnel adjacent to Confucius Plaza, however, will not be used under the current preferred alternative; there are maintenance offices in the tunnel that block the way, and in June 2005, it was shown to be lightly graffitied. Instead, the current proposal calls for the subway to pass under Confucius Plaza, which is adjacent to this segment. In the adjacent Chrystie Street Connection area, plans call for an additional two tracks in the Chrystie Street area for the Second Avenue mainline; current plans have the new tracks under the old ones, while older plans had one track on each side of the Chrystie Street Connection through the Grand Street station. Some construction work also took place between 2nd and 9th Streets, though the extent is disputed. Some reports say that only utilities were relocated, while others say that this section was excavated but later filled back in.
2000s–present: Construction and development
With the city's economic and budgetary recovery in the 1990s, there was a revival of efforts to complete construction of the SAS. Rising ridership on the IRT Lexington Avenue Line, the only subway trunk line east of Central Park, demonstrated the need for the Second Avenue Line, as capacity and safety concerns rose. The four-track IRT Lexington Avenue Line, the lone rapid transit option in the Upper East Side and East Harlem since the 1955 closure of the Third Avenue elevated, is the most crowded subway line in the country. The line sees an average of 1.3 million daily riders, more than the entire Washington Metro system (which has the second-highest ridership in the U.S.) and more than the rail transit systems of San Francisco and Boston combined. Local bus routes are just as crowded during various times of the day, with the surface Second Avenue Line, carrying the M15 and M15 SBS buses, seeing an annual ridership of 17.5 million, or a daily ridership of about 47,945. The construction of the Second Avenue line would add another two tracks to fill the gap that has existed since the elevated Second and Third Avenue Lines were demolished the 1950s.
In 1995, the MTA began its Manhattan East Side Alternatives (MESA) study, seeking ways to alleviate overcrowding on the Lexington Avenue Line and improve mobility on Manhattan's East Side. The study analyzed several alternatives, such as improvements to the Lexington Avenue Line to increase capacity, enhanced bus service with dedicated lanes, and light rail or ferry service on the East Side. The favored alternatives included a subway running down Second Avenue, from 125th Street in Harlem to the existing Lexington Avenue-63rd Street station, possibly including a separate light rail service between Union Square and Broad Street that would serve the Lower East Side and Lower Manhattan. Thanks in part to strong public support, the MTA committed in 2000 to building a full-length subway line along the East Side, from East Harlem to Lower Manhattan. In 2001, a contract for subway design was awarded to DMJM Harris/Arup Joint Venture.
The MTA's final environmental impact statement was approved in April 2004; this latest proposal is for a two-track line from 125th Street and Lexington Avenue in Harlem, down Second Avenue to Hanover Square in the Financial District. The new subway line will actually carry two services. The full-length Second Avenue line, extending from Harlem to the Financial District, is to be given the color turquoise and the letter designation T. However, a rerouted Q, the line's other service, will begin carrying passengers first. The MTA plan calls for building the Second Avenue Subway in four segments with connections to other subway lines. The first segment (Phase One) is a proposed reroute of the Q, the Broadway Express via the 63rd Street Line and north along Second Avenue to the Upper East Side at 96th Street. Phase Two will extend the rerouted Q train to 125th Street. In Phase Three, the new T train will run from 63rd Street to Houston Street. The final phase will extend T train service from Houston Street to Hanover Square in Lower Manhattan. Track maps on the MTA's website show that all stations, except for Hanover Square and 125th Street, will have two tracks and one island platform. (72nd Street was conceived as a three-track, two-platform station, as are 125th Street and Hanover Square. However, the 72nd Street station is being constructed with two tracks and one platform.)
In August 2006, the MTA revealed that all future subway stations, including ones built for the Second Avenue subway, the 7 Subway Extension, and the new South Ferry station will be outfitted with air-cooling systems to reduce the temperature along platforms by as much as 10 °F (6 °C). The Second Avenue Subway was also to have platform screen doors to assist with air-cooling and ventilation, but this plan was scrapped in 2012 as cost-prohibitive.
The first phase will be within budget, at $4.45 billion. The total cost of the 8.5-mile (13.7 km) line is expected to exceed $17 billion. According to MTA Capital Construction President Dr. Michael Horodniceanu, the whole line may be completed as early as 2029 and would serve 560,000 daily passengers upon completion.
2007–present: First phase
Second Avenue Subway plans for Phase 1 were only allowed to proceed because New York voters passed a transportation bond issue on November 8, 2005, allowing for dedicated funding allocated for that phase. Its passage had been seen as critical to its construction. After warning that failure to pass the act would doom the project, MTA chairman Peter S. Kalikow stated that "Now it's up to us to complete the job" given its approval by a 55–45 percent margin. In addition, the U.S. Department of Transportation announced, on December 18, 2006, that they would allow the MTA to commit up to $693 million in funds to begin construction of the Second Avenue Subway Line and that the federal share of such costs would be reimbursed with FTA transit funds, subject to appropriations and final labor certification.
The Phase 1 construction site was designated as being from 105th Street and Second Avenue to 63rd Street and Third Avenue. Deep bore tunneling methods were to be used in order to avoid the disruptions for road traffic, pedestrians, utilities and local businesses produced by cut-and-cover methods of past generations. Stations were to retain cut-and-cover construction.
Preliminary engineering and a final tunnel design was completed by a joint venture between AECOM and Arup. On March 20, 2007, upon completion of preliminary engineering, the MTA awarded a contract for constructing the tunnels between 92nd and 63rd Streets, a launch box for the tunnel boring machine (TBM) at 92nd to 95th Streets, and access shafts at 69th and 72nd Streets. This contract, valued at $337 million, was awarded to S3, a joint venture of Schiavone Construction, Skanska USA Civil, and J.F. Shea Construction. A ceremonial groundbreaking took place on April 12, 2007, in a tunnel segment built in the 1970s at 99th Street. At the time, it was announced that passengers would be able to ride trains on the new line by the end of 2013. Actual construction work began, on the surface of Second Avenue between 91st and 95th Streets, on April 23, 2007. Initial construction work involved moving utility pipes, wires, and other infrastructure, which took 14 months, far more than the MTA's anticipated eight months. For boring, a trench was dug from 96th to 93rd Streets.
In November 2007, Mary Peters, the United States Secretary of Transportation, announced that the Second Avenue Subway would receive $1.3 billion in federal funding for the project's first phase, to be funded over a seven-year period. However, due to cost increases for construction materials and diesel fuel affecting the prices of contracts not yet signed, the MTA announced in June 2008 that certain features of the Second Avenue Subway would be simplified to save money. One set of changes, which significantly reduces the footprint of the subway in the vicinity of 72nd Street, is the alteration of the 72nd Street Station from a three-track, two-platform design to a two-track, single island platform design, paired with a simplification of the connection to the Broadway Line spur. Supplemental environmental impact studies covering the changes to for the proposed 72nd Street and 86th Street stations were completed in June 2009.
On May 28, 2009, the MTA awarded a $303.8 million contract to E.E. Cruz and Tully Construction Co., a joint venture and limited liability company, to construct the 96th Street station box. Work began in July on site clearing and utility relocation necessary to prepare for the installation of slurry walls between 95th and 99th Streets where the station connects to the existing tunnel section. In June 2009, the first of three contracts for the 86th Street station was awarded for the advance utility relocation work and construction of cut and cover shaft areas at 83rd and 86th Streets. This contract provided two vertical starter shafts that were used by a subsequent contractor to excavate the station cavern in the rock between 83rd and 86th Streets.
During construction, two buildings had to be evacuated in June 2009 due to construction work. On June 5, 2009, an apartment building at 1772 Second Avenue was evacuated by the NYC Department of Buildings (DOB) after it was determined that the building was in danger of collapse. Then on June 29, 2009, the DOB evacuated a mixed use building at 1768 Second Avenue/301 East 92nd Street because it too was in danger of collapse. The evacuation of these two buildings delayed the contractor's plan to use controlled blasting to remove bedrock in the southern section of the launch box. Until the blasting permits could be issued, MTA required contractors to use mechanical equipment to remove the bedrock, which is slower than blasting out the rock.
The tunnel boring machine was originally expected to arrive six to eight months after construction began, but the utility relocation and excavation required to create its "launch box" delayed its deployment until May 2010. On May 14, 2010, MTA's contractors completed the TBM installation and turned it on at the Second Avenue Subway launch box at 96th Street and boring southward to connecting shafts built at 86th and 72nd Streets.
On October 1, 2010, MTA awarded a $431 million contract to joint venture SSK Constructors for the mining of the tunnels connecting the 72nd Street station to the existing Lexington Avenue – 63rd Street station, and for the excavation and heavy civil structures of the 72nd Street station.:301 A subsequent contract was awarded to Skanska Traylor Joint Venture for excavation of the cavern at the 86th Street station on August 4, 2011. In January 2011, MTA awarded Judlau Contracting a 40-month, $176.4 million contract to rebuild and enlarge the Lexington Avenue – 63rd Street station.
Meanwhile, the tunnel boring machine dug at a rate of approximately 50 feet (15 m) per day. The machine finished its run at the planned endpoint under 65th Street on February 5, 2011. S3 partially disassembled the TBM and backed it out of the tunnel. It was repositioned in the east starter tunnel to begin boring again. Because the east side of Second Avenue has some soft ground not compatible with the Robbins TBM, ground-freezing was undertaken to prepare the soil for the TBM. On March 28, 2011, S3, having completed its task of completing the 7,200-foot (2,200 m) west tunnel to 65th Street, began drilling the east tunnel, with the first 200 feet (61 m) being through soil frozen by S3 using calcium chloride solution fed through a network of pipes. The TBM drilling the east tunnel will negotiate the curve onto 63rd Street and break through the bellmouth at the existing 63rd Street subway station. The portion of the west tunnel remaining to be created will be mined using conventional drill-and-blast methods, because the curve S3 construction teams would have to negotiate is too tight for the TBM. On September 22, 2011, the TBM completed its run to the Lexington Avenue – 63rd Street station's bellmouth.
The final contract, for architectural and mechanical and electrical work at 72nd, 86th, and 96th Street stations; rehabilitation of the Lexington Avenue – 63rd Street station; and the Systems Contract (track, signals, and communications) for the entire Phase 1 area was awarded on June 1, 2013. On a July 2013 "report card" that indicated the progress of the subway by Congresswoman Carolyn Maloney, the construction progress got a "B". Blasting for the station caverns was finished in November 2013, and the muck houses were taken down at around the same time.
In the winter of 2013, many of the tracks and signal panels began to arrive at the construction site, to be installed on the line over the next few years. It was reported in November 2013 that one third of the tracks for the line had arrived, for the segments of track between 87th and 105th Streets; the tracks were being stored at 96th Street station. As of May 21, 2015[update], the first phase of construction was more than 80% complete. By August 2015, the construction project was 84.3% complete, with all 10 Phase 1 construction contracts having been awarded and 5 of them having been completed.
Schedules for construction and planning
The MTA and its contractors on the project meet on a regular basis with the Manhattan Community Board 8 Second Avenue Subway Task Force and Manhattan Community Board 11 to report on construction progress and to seek input from the community.
The MTA's forecasted opening date for Phase I is December 30, 2016, as of January 2, 2015[update]. Horodniceanu called earlier estimates lacking "the precision required". On May 2, 2014, it was reported that Phase 1 of the line was 66% complete, and six of the ten construction contracts awarded were already being worked on. The agency was still targeting December 2016 as a completion date, and the project is still within budget at a cost of $4.45 billion, while serving approximately 200,000 daily riders. As of April 2015[update], the first phase is 82% complete.
Estimated completion schedules have been widely varying. As of 2009[update], the proposed construction schedule showed the Second Avenue Subway opening for passenger service in 2016. Other publications have listed expected construction dates for Phase 1, as well as mentioned the possible December 2016 opening. In its 2008 capital improvement budget proposal, the MTA pushed back completion of Phase 1 from 2014 to 2015, and in 2009, the MTA pushed it back again to 2016. As of December 2015[update], the line is still scheduled to open in December 2016.
The Second Avenue Subway project has not been uncontroversial. In February 2011, a lawsuit was filed by the Yorkshire Towers at 86th Street over the location of two proposed Second Avenue Subway entrances that were located right in front of the building but facing away from its semicircular driveway. The quality of life for building tenants was allegedly to be destroyed if the entrances were to be built in the location; however, the lawsuit was later dismissed. In an unrelated 2012 controversy, some residents in the 72nd Street station area claimed to have come down with a "Second Avenue cough" caused by dust from construction, and local doctors saw that the air quality of the area had decreased while nasal sicknesses had increased. The MTA tried to combat this by creating new structures and using other methods to reduce dust inhalation. The MTA prepared a report that said in the 86th Street station area "all monitored concentrations were below the established benchmark levels".
The New York Daily News alleged that the subway project was very unsafe. For example, on August 8, 2012, an explosion caused rocks to fly all over an intersection. Nearly two weeks later, on August 21, 2012, an uncontrolled blast for the station was done incorrectly, causing a large explosion that sent debris into the air and broke windows of buildings in the area and damaged nearby sidewalks. In another instance, contaminated rocks were carried away from a construction site on 63rd Street, and the incident went unnoticed. On March 19, 2013, in yet another allegation of wrongdoing, a construction worker got stuck in waist-deep muck at the 96th Street station site, but while he was extricated after four hours of rescue efforts, he nearly died after the incident.
In a product-related controversy involving the Second Avenue Subway project, American Standard Testing and Consulting Laboratories (ASTCL), company president Alan Fortich, and five other executives admitted filing false documents on the subway tunnels and "thousands" of other New York City construction projects within 10 years. ASTCL had replaced Testwell Inc., another firm indicted for faking concrete tests, in 2008.
Planned construction methods varied depending on the section of the line, due to varying underground conditions. The methods planned for each section were as follows:
|Streets||Construction method||Streets||Construction method||Streets||Construction method|
|Lex–2 Aves||Tunnel Boring Machine||101–95||Cut and Cover||43–41||Mined with Cut and Cover|
|125–123||Mined with Cut and Cover||95–87||Tunnel Boring Machine||41–34||Tunnel Boring Machine|
|123–120||Tunnel Boring Machine||87–84||Mined with Cut and Cover||34–32||Cut and Cover|
|120–117||Existing||84–73||Tunnel Boring Machine||32–24||Tunnel Boring Machine|
|117–114||Cut and Cover||73–71||Mined with Cut and Cover||24–22||Mined with Cut and Cover|
|114–109||Existing||71–58||Tunnel Boring Machine||22–15||Tunnel Boring Machine|
|109–106||Cut and Cover||58–56||Cut and Cover||15–11||Cut and Cover|
|106–101||Existing||56–43||Tunnel Boring Machine||11–Hanover||Undecided|
A number of methods will be used to tunnel for 13.7 kilometers (8.5 mi) underneath Manhattan, which is densely populated. About 90% of the tunneling is to be performed by a tunnel boring machine. The rest will be done using the cut and cover method and mined drill and blast, for sections, generally the 16 stations, that average 275 meters (902 ft) in length. The stations at 86th and 72nd Streets were mined. This was challenging, given the number of expensive high rise properties in their vicinities. The 96th Street cut-and-cover station was about 15 meters (49 ft) deep, making it one of the shallowest stations being built on the line; the shallowness was so that the new line could align with the preexisting piece of subway tunnel built in the 1970s between 99th and 105th Streets. Stations at the two mined stations are between 25.9 and 27.4 meters (85 and 90 ft) deep in rock. The construction method that was used was supposed to ease concerns for buildings above the station sites, because only two shafts were required for excavation.
In Phase 1, there was tunneling between East 63rd and 92nd Streets and a 248-by-23-meter-wide (814 by 75 ft) TBM launch box was built. That tunnel box is now part of the 96th Street station. Two access shafts were constructed for the 72nd Street station. Slurry or diaphragm walls, 1.1 meters (3.6 ft) wide and 6.1 meters (20 ft) long and about 35 meters (115 ft) deep, were built alongside the sections between East 93rd and 95th Streets. Since the rock is shallower between East 91st and 93rd Streets, 1.1-meter-diameter (3.6 ft) secant piles did the same work at shallower depths.
Earth excavation was conducted between walls once they were installed, and box structures were built using a bottom-up construction method. Temporary decking constituted the top of the boxes, and the decking both braced the excavation and supported the walls and Second Avenue traffic. Of the below-ground obstacles, Arup director of construction David Caiden stated: "It's a spaghetti of tunnels, utilities, pipes and cables — I've never seen anything like it." Complicating the process, the project must go over, or under, subway lines, Amtrak railway lines, and the Queens-Midtown Tunnel linking Manhattan and Queens, in later phases.
There were geological anomalies along the way. Manhattan's geology changes along the subway's length, passing through rock and soft ground, consisting of sands, silts, and clays over Manhattan schist, and there are faults and shear zones as well as fractured rock. Hard-rock Tunnel Boring Machines 6.7 meters (22 ft) in diameter tunneled during the first phase, progressing at a rate of about 20 meters (66 ft) per day.
The stations on the line were built so that they are more wide open than most other underground subway stations in the system; because of this, they were likened to the stations on the Washington Metro by, Dr. Michael Horodniceanu, the president of MTA Capital Construction.
Planned service pattern
The plans for the Second Avenue Subway involve digging 8.5 miles (13.7 km) of new tunnel from 125th Street in Harlem south to Hanover Square, which is located in Manhattan's Financial District. Initially, during Phase I, the line will begin at the intersection of Second Avenue and 96th Street, running south to join the BMT Broadway Line via the existing BMT 63rd Street Line. Phase I stations will be located at 96th Street, 86th Street and 72nd Street. Plans call for the Q service to be routed to 96th Street, and then in Phase 2 to 125th Street and Lexington Avenue. After Phase 3, a new T service will operate from 125th Street to Houston Street. After Phase 4 opens, T service will run the full length of the line, from 125th Street to Hanover Square.
In addition to the T service, there is also a connection to the BMT Broadway Line, utilizing an existing connection via the BMT 63rd Street Line as part of phase 1. The Q service will most likely be extended northward from 57th Street – Seventh Avenue, curving east under Central Park on the unused portion of the BMT 63rd Street Line. The Q train would stop at Lexington Avenue – 63rd Street with a cross-platform interchange to the IND 63rd Street Line (F train) before merging with the Second Avenue Line at 64th Street. Thus, after Phase 4 is completed, the residents of Spanish Harlem and the Upper East Side will have direct mass transit service down both Second Avenue and Broadway to the Financial District, and across the Manhattan Bridge to Brooklyn via the Q train.
An additional two-track connection is planned between the line toward Lower Manhattan (around 63rd Street) and the IND 63rd Street Line toward Queens; current plans do not call for it to be used by regular service. Provisions are also being made for an extension north under Second Avenue past 125th Street to the Bronx, and an extension south to Brooklyn.
However, funding for other phases has been lacking:
- Phase 2 (125th St. to 96th St.) $525 million in the MTA's 2015–2019 Capital Plan has been approved for planning, design, environmental studies and utility relocation. This budget originally carried $1.5 billion, which would be used to start construction of the tunnels; the MTA reduced the amount of money allocated in the budget, projecting that the agency would not be able to start construction by the end of the 5-year cycle in 2019. Now, construction of the tunnels will likely be funded in future 5-year capital programs, and possibly not start until 2020. Although the MTA previously expressed concerns about funding the Capital Program, spokesman Adam Lisberg insisted that the reduction in funding was a result of uncertain timing and not money issues. The delay had upset politicians and residents of East Harlem, who objected to the 3-to-4-year delay.
- Phase 3 (63rd St. to Houston St.) No funding commitments.
- Phase 4 (Houston St. to Hanover Square) No funding commitments.
The proposed stations of the Second Avenue Line are as follows:
|Station||Phase||Transfers & Notes|
|Provision for expansion crosstown along 125th Street|
|125th Street||2||4 5 6 <6> trains (IRT Lexington Avenue Line) at Lexington Avenue and 125th Street
M60 Select Bus Service to LaGuardia Airport
connection to Harlem – 125th Street (Metro-North Railroad)
northern terminal station for Q train (Phase 2) and T train (Phase 3)
|Provision for expansion to The Bronx|
|96th Street||1||northern terminal station for Q train in Phase 1|
|Q train splits to BMT Broadway Line via BMT 63rd Street Line (Phase 1)|
|T train continues down Second Avenue (Phase 3)|
|55th Street[note 2]||3||E M trains (IND Queens Boulevard Line) at Lexington Avenue – 53rd Street
4 6 <6> trains (IRT Lexington Avenue Line) at 51st Street
|42nd Street[note 2]||3||7 <7> trains (IRT Flushing Line)
S trains (IRT 42nd Street Shuttle)
4 5 6 <6> trains (IRT Lexington Avenue Line) at Grand Central – 42nd Street
connection to Grand Central Terminal (Metro-North Railroad & Long Island Rail Road once East Side Access Project is completed)
|14th Street[note 2]||3||L trains (BMT Canarsie Line) at Third Avenue|
|Houston Street[note 2]||3||F trains (IND Sixth Avenue Line) at Second Avenue
southern terminal station for T train (Phase 3)
|Grand Street||4||B D trains (IND Sixth Avenue Line) at Grand Street|
|Chatham Square||4||at Worth Street|
|Seaport||4||at Fulton Street|
|Hanover Square||4||at Old Slip
southern terminal station for T train (Phase 4)
|Provision for expansion to Brooklyn|
- The letters O and I are too easily confused with the digits 0 and 1, respectively.
- The letters H and K were used until the late 1980s to denote services on the IND Eighth Avenue Line, as well as on the BMT Jamaica Line, and thus are not preferred. H, in addition, is also the Rockaway Park Shuttle's internal route designator.
- The letter P was supposedly rejected on the whim of one of the Second Avenue Subway's planners.
- The letters U and Y were more easily confused with words rather than letters.
The T's route emblem was colored turquoise (hex triplet #00ADD0, which could also be considered robin's egg blue or teal) because the color had also been used for the JFK Express in the past. In 2011, turquoise was considered "the color of the year", and at the time of the color's selection in the 2000s, it was also considered a very upscale color.
- 63rd Street Lines
- Fulton Center
- Lower Manhattan – Jamaica / JFK Transportation Project
- Transportation in New York City
- MTA.info—Second Avenue Subway Quarterly Report Q4 2013
- Sargent, Greg (March 29, 2004). "The Line That Time Forgot – Second Avenue Subway". Nymag.com. Retrieved August 2, 2009.
- "The line that time forgot". PlanNYC. April 5, 2004. Retrieved August 2, 2009.
- "www.nycsubway.org: Second Avenue Subway: The Line That Almost Never Was". www.nycsubway.org. New York City Transit Authority. 1972. Retrieved September 30, 2015.
- 100 Miles of Subway in New City Project; 52 of them in Queens, New York Times September 16, 1929 page 1
- "www.nycsubway.org". www.nycsubway.org.
- Raskin, Joseph (2013). The Routes Not Taken: A Trip Through New York City's Unbuilt Subway System. Fordham University Press. ISBN 978-0-8232-5369-2.
- Sam Jewler (July 24, 2004). "The Long, Tortured History of the Second Avenue Subway". New York Magazine. Retrieved August 14, 2015.
- "MANHATTAN SALES: Second Avenue Subway Project Causes 50 Percent Rise in Prices.". New York Times. September 2, 1929. Retrieved August 14, 2015.
- Staff. "Second Avenue 'El' Coming to a Stop", The Christian Science Monitor, June 13, 1942. Accessed October 12, 2008.
- "2nd Ave. Subway History". Second Ave. Sagas. Retrieved 2016-02-07.
- "Board of Transportation – 1951". Thejoekorner.com. Retrieved March 25, 2014.
- Neuman, William (March 24, 2007). "A Museum-Quality Car for a Subway Yet Unbuilt". The New York Times. Retrieved September 30, 2015.
- R-11 Datasheet
- "U.S. Transportation Secretary Signs Record $2.6 Billion Agreement To Fund New Tunnel Network To Give Long Island Commuters Direct Access to Grand Central Station" (Press release). U.S. Department of Transportation. December 18, 2006. Retrieved January 18, 2007.
- Last Train Rumbles on Third Ave. 'El', New York Times May 13, 1955 page 1
- Text of the Urban Mass Transportation Act of 1964, accessed August 14, 2015.
- "Second Avenue Subway Final Environmental Impact Statement (FEIS): Appendix B: Development of Alternatives" (PDF). mta.info. Metropolitan Transportation Authority (New York). Retrieved August 5, 2015.
- "The Subway Compromise". The New York Times. July 28, 1969. Retrieved July 9, 2015.
- 2nd Avenue Subway – Tentative track plan, Manhattan portion, nycsubway.org
- "Developing a Long Range Transportation Plan". Internet Archive. August 15, 2000. pp. 84–85. Archived from the original on September 30, 2015.
- Second Avenue Subway: Timeline. Retrieved April 7, 2014.
- "Second Avenue Subway". web.mta.info. Metropolitan Transportation Authority. Retrieved April 7, 2014.
- Burks, Edward C. (October 25, 1973). "GROUND IS BROKEN FOR 2D AVE. LINK; Downtown Subway Section Begins With Ceremony Led by Lindsay and Ronan Projects Are Listed Interest in French Train". The New York Times. p. 51. Retrieved October 4, 2015.
- Burks, Edward C. (July 26, 1974). "Beame and Wilson Man the Jackhammers To Start 4th Segment of 2d Ave. Subway; A 1920's Project Some See No Alternative Rush Hour Still Jammed Headache for Neighbors Completion Set for '75". The New York Times. p. 10. Retrieved October 4, 2015.
- Hausner, The New York Times/Edward (January 10, 1975). "2d Ave. Tunnelers Push On, Despite Potential Futility; Proposal by Beame". The New York Times. p. 78. Retrieved October 4, 2015.
- Burks, Edward C. (September 26, 1975). "WORK IS STOPPED ON SUBWAY LINE; City Lacks Funds to Finish Part of 2d Ave. Project". The New York Times. p. 41. Retrieved October 4, 2015.
- Finder, Alan (April 19, 1994). "A Tunnel Waiting Two Decades for a Train; Shafts for the Second Avenue Subway Are Maintained, in Case the Line Is Ever Built". The New York Times. p. B1. Retrieved October 4, 2015.
- Chan, Sewell (November 14, 2005). "The Bond Passed. Now Comes the Hard Part: Actually Building a 2nd Avenue Subway". The New York Times (The New York Times). Retrieved April 7, 2014.
- "The Line That Time Forgot – Second Avenue Subway". Nymag.com. April 5, 2004. Retrieved April 10, 2014.
- FAQ: Completed Portions of the 2nd Avenue Subway. Retrieved April 7, 2014.
- "Video: Explore The Abandoned Second Avenue Subway Tunnels". Gothamist. February 1, 2012.
- "96th Street Station Area" (PDF). Second Avenue Subway Newsletter. February 2013. Retrieved June 9, 2013.
- "LTV Exploration // Abandoned subway stations, industrial buildings, and general decay in NYC chinatown tunnel". Ltvsquad.com. June 19, 2005. Retrieved April 3, 2014.
- "Second Avenue Subway Final Environmental Impact Statement (FEIS): Appendix B: Development of Alternatives" (PDF). mta.info. Metropolitan Transportation Authority (New York). Retrieved August 5, 2015.
- "Second Avenue Subway in the Borough of Manhattan, New York County, New York Final Environmental Impact Statement And Final Section 4(f) and Section 6(f) Evaluation" (PDF). April 2004. pp. 1–5, 1–6. Retrieved September 22, 2011.
- "mta.info – Facts and Figures". mta.info.
- "Second Avenue Subway History". mta.info. April 12, 2007. Retrieved January 16, 2016.
- [web.mta.info/capital/sas_docs/final_summary_report.pdf "Manhattan East Side Alternatives Study Summary Report"] Check
value (help) (PDF). mta.info. Retrieved January 16, 2016.
- Christine Haughney (August 22, 2011). "Train Line Far From Arrival Has a Color to Be Noticed". New York Times. Retrieved August 14, 2015.
- "MTA Capital Construction – Second Avenue Subway Project Description". mta.info. MTA. Retrieved October 5, 2013.
- SAS track map, south of 57th Street
- SAS track map, north of 57th Street
- "Rising costs shelve third Second Ave. Subway track at 72nd :: Second Ave. Sagas". Secondavenuesagas.com. Retrieved May 14, 2014.
- mta.info—Community Board 8 Second Avenue Subway Task Force, June 17, 2008
- Donohue, Pete (August 4, 2006). "Cooler Subways Coming Eventually". Daily News (New York). Archived from the original on October 10, 2007. Retrieved December 12, 2008.
- Rivoli, Dan, "Second Avenue Subway Scenes," amNew York, May 2–4, 2014, p.6
- NYC Subway Deaths Spur Officials to Call for Action, The Epoch Times.
- Putzier, Konrad (May 14, 2014). "Real Estate Weekly » Blog Archive » Light at end of tunnel for Second Ave. subway". Rew-online.com. Retrieved June 5, 2014.
- Nolan, Caitlin (May 16, 2014). "Second Avenue subway line construction is progressing: officials". NY Daily News. Retrieved May 19, 2014.
- Smith, Stephen J. (October 2, 2013). "The Next 20 Years for New York’s MTA – Next City". Nextcity.org. Retrieved June 5, 2014.
- Chan, Sewell (November 9, 2005). "Voters Approve Transit Bonds for $2.9 Billion". The New York Times. Retrieved September 20, 2007.
- "U.S. Transportation Secretary Signs Record $2.6 Billion Agreement to Fund New Tunnel Network To Give Long Island Commuters Direct Access to Grand Central Station". United States Department of Transportation. December 18, 2006. Archived from the original on July 9, 2009. Retrieved September 20, 2007.
- Nonko, Emily (January 30, 2014). "Updates on NYC's Biggest Subway Projects: Second Avenue and East Side Access – January 30, 2014". NewYork.com. Retrieved June 5, 2014.
- Stabile, Tom (May 2006). "New York's Subway System Finally Starting Major Expansion". newyork.construction.com. Archived from the original on May 9, 2008. Retrieved December 12, 2008.
- "Second Avenue Subway – A Status Report" (PDF). Retrieved August 2, 2009.
- "Arup to design new Second Avenue Subway, New York". Arup. November 20, 2001. Archived from the original on February 5, 2009. Retrieved June 9, 2013.
- "Second Avenue Subway – Transport Consulting". Arup. Archived from the original on February 2, 2009. Retrieved June 9, 2013.
- MTA Press Release March 20, 2007—First Construction Contract Signed for Second Avenue Subway; Work to Begin in April
- Olshan, Jeremy (March 21, 2007). "Second Ave. Tunnel Vision". New York Post. Archived from the original on April 16, 2009. Retrieved January 9, 2009.
- "MTA Signs Second Ave. Subway Contract". New York Sun. March 21, 2007. Retrieved February 20, 2010.
- 2nd Avenue Subway Contract Signed – WNYC Newsroom, March 21, 2007
- NY Construction—Top Projects, page 1.
- "Second Avenue subway groundbreaking: Is 4th time the charm?". The Journal News. April 12, 2007. Retrieved April 18, 2007.
- "Press Release - MTA Headquarters - Second Avenue Subway Breaks Ground". MTA. 2007-04-12. Retrieved 2015-12-24.
- "MTA Capital Construction – Second Avenue Subway: History". mta.info. MTA.
- Neuman, William (November 19, 2007). "U.S. Approves $1.3 Billion for 2nd Avenue Subway". The New York Times. Retrieved November 19, 2007.
- "Microsoft PowerPoint – 0080617_CB8_Final [Compatibility Mode]" (PDF). Retrieved August 2, 2009.
- "Microsoft PowerPoint – 080729_CB8_Final_distribution version" (PDF). Retrieved August 2, 2009.
- "MTA Capital Construction – Second Avenue Subway: Documents". mta.info. MTA. Archived from the original on June 25, 2013. Retrieved October 5, 2013.
- "MTA Capital Construction Recent Contract Awards, retrieved May 30, 2009". Mta.info. Retrieved August 2, 2009.
- “SECOND AVENUE SUBWAY PROJECT”, 2013 Rail Conference, apta.com
- Namako, Tom (June 6, 2009). "2nd Ave. Subway Caused Building Evac: Officials". New York Post.
- Sutherland, Amber; Namako, Tom (July 1, 2009). "Second Ave. Tenants RIP 'Train Wreck'". New York Post.
- Rivoli, Dan (September 2, 2009). "2nd Ave. Subway Delays". Our Town. Archived from the original on July 15, 2011. Retrieved February 20, 2010.
- Simeone, Jessica; Namako, Tom (September 26, 2009). "Second Ave. on Snail Rail". New York Post.
- " "Blasting on Second Avenue". thelaunchbox.blogspot.com. March 22, 2010.
- Siff, Andrew (May 14, 2010). "2nd Ave. Subway Tunnel Dig Begins". WNBC. Retrieved May 14, 2010.
- "Tunneling Begins Under Second Avenue". MTA. May 14, 2010. Archived from the original on August 17, 2012. Retrieved May 17, 2010.
- "MTA Launches Second Avenue Subway Tunnel Boring Machine". MTA Press Releases. May 14, 2010. Retrieved October 5, 2013.
- Exclusive: Ground Breaking For 2nd Avenue Subway Line Weeks Away – NY1, January 24, 2007
- Davidson, G.; Howard, A.; Jacobs, L.; Pintabona, R.; Zernich, B. (2014). North American Tunneling: 2014 Proceedings:. Society for Mining Metallurgy. p. 301. ISBN 978-0-87335-400-4. Retrieved November 15, 2015.
- "COMMUNITY BOARD EIGHT PROJECT UPDATE" (PDF). mta.info. Metropolitan Transportation Authority. September 26, 2011. Retrieved November 15, 2015.
- "MTA Capital Construction – Procurement". mta.info.
- "Freeze Ground, Thaw Hearts". Engineering News. February 2, 2011. Retrieved August 15, 2015.
- COMMUNITY BOARD EIGHT PROJECT UPDATE, MTACC, February 15, 2011
- "Excavation of West Tunnel for Second Avenue Subway Almost Complete". MTAcPress Release. Retrieved February 5, 2011.
- "Boring Manhattan: Ceremony Launches Subway Project". WCBS-TV. Associated Press. May 14, 2010. Archived from the original on May 17, 2010. Retrieved May 14, 2010.
- Roth, Jamie (May 14, 2010). "Boring for new 2nd Avenue subway begins". WABC-TV. Retrieved May 14, 2010.
- "Tunneling for Second Avenue Subway Continues". Metropolitan Transportation Authority. March 28, 2011. Archived from the original on August 17, 2012. Retrieved September 24, 2011.
- "Second Avenue Subway TBM Breakthrough 9/22/2011". MTAPhotos. MTA. Retrieved October 5, 2013.
- "Second Avenue Subway has a breakthrough moment; several billion more are all the M.T.A. wants". Capital NY. September 23, 2011. Retrieved May 27, 2014.
- "Press Release - MTA Headquarters - MTA Awards Final Contract to Build Phase 1 of the Second Avenue Subway". MTA. June 13, 2013. Retrieved November 15, 2015.
- Mann, Ted (November 22, 2013). "Blasting Completed on Second Avenue Subway Project". WSJ. Retrieved November 15, 2015.
- Harshbarger, Rebecca (November 4, 2013). "MTA gives new peek at 2nd Ave. subway". New York Post. Retrieved May 13, 2014.
- Rebecca Harshbarger (May 21, 2015). "Second Avenue Subway more than 80 percent complete". New York Post. Retrieved June 1, 2015.
- mta.info—July 2015 Task Force Presentation
- "Second Avenue Subway Construction Progress Update (November to March)" (PDF). September 23, 2009. Retrieved August 2, 2009.
- "mta.info – Capital Programs Second Avenue Subway". mta.info.
- The Launch Box—Fewer Than 1,000 Days to Go!
- Second Avenue Subway Community Board 8 Second Avenue Subway Task Force Update
- MTA releases Second Avenue subway images, says project on track NY Daily News, November 5, 2013
- Andrea Gryme (May 1, 2014). "Progress Moves Ahead For Phase One Of Second Avenue Subway « CBS New York". CBS Local Media, a division of CBS Radio Inc. Retrieved May 4, 2014.
- Sanders, Anna (May 1, 2014). "10 facts about the Second Avenue Subway". Metro.us. Retrieved May 4, 2014.
- Dan Rivoli (April 1, 2014). "Second Avenue Subway progress: Dec. 2016 end date on track". AM New York, Newsday. Retrieved May 4, 2014.
- Watson, Leon. "Manhattan's colossal construction site for Q line subway extension | Mail Online". Associated Newspapers Ltd, Part of the Daily Mail, The Mail on Sunday & Metro Media Group. Retrieved May 4, 2014.
- Michael Hession (May 2, 2014). "A Subterranean Stroll Through NYC's Newest Train Tunnel". Gizmodo.com. Retrieved May 4, 2014.
- "New Photos Show Second Avenue Subway Stations Nearing Completion". Gothamist. April 27, 2015. Retrieved May 2, 2015.
- "090924_C1C2AC5ACombined_CB8_final+-+p.3.jpg (image)". bp.blogspot.com.
- Neuman, William (May 18, 2007). "Manhattan: Budget Increases for New Subway". The New York Times. Retrieved May 24, 2007.
- Earle, Geoff (April 17, 2006). "Feds Finally Aboard 2nd Avenue $ubway". New York Post. Archived from the original on June 14, 2006. Retrieved June 9, 2013.
- Donohue, Pete (April 24, 2009). "Second Ave. subway set back – again". Daily News (New York). Retrieved February 20, 2010.
- Donohue, Pete (January 20, 2013). "Second Ave. subway on track to open in 2016: MTA". Daily News (New York). Retrieved March 25, 2013.
- "Upper East Side Building Sues MTA Over Planned Subway Entrances". DNA Info. February 17, 2011. Retrieved May 19, 2014.
- "Owners and Tenants of Yorkshire Towers Sue to Relocate Planned 86th Street Entrances to Second Avenue Subway". Anderson Kill. February 17, 2011. Retrieved May 19, 2014.
- "NIMBY suit opposing 86th St. entrances dismissed". Second Avenue Sagas. June 18, 2013. Retrieved May 19, 2014.
- United States District Court for the Southern District of New York—86th Street station lawsuit dismissed
- Greg B. Smith (June 2, 2013). "Second Avenue subway plagued with dangerous conditions and safety violations". NY Daily News. Retrieved May 4, 2014.
- Luke McKenna (January 27, 2012). "The Second Avenue Subway Project Might Be To Blame For An Obnoxious Cough". Business Insider. Retrieved August 14, 2015.
- Christine Haughney (November 23, 2011). "2 Views on Subway Project: Delay Work to Clear Air, or Carry On and Profit Sooner". New York Times. Retrieved August 14, 2015.
- "Air Quality Monitoring Study of the 86th Street Station: Construction on Second Avenue: Interim Report" (PDF). May 15, 2012. Retrieved November 14, 2015.
During the monitoring period all monitored concentrations were below the established benchmark levels. The results indicate that PM10 levels were slightly higher on the days of test blasting, however, PM2.5 concentrations did not change.
- "EXCLUSIVE: Second Avenue subway plagued with dangerous conditions and safety violations". NY Daily News. Retrieved May 14, 2014.
- mta.info—Summary Report of August 21, 2012 Incident at Ancillary No. 2
- "Blasting Goes Awry Along 2nd Avenue Subway « CBS New York". Newyork.cbslocal.com. August 21, 2012. Retrieved May 14, 2014.
- August 21, 2012 2:36 pm Updated: August 22, 2012 2:25 pm. "Second Avenue Subway Explosion Breaks UES Windows After Workers Use Too Many Explosives (PHOTOS)". Huffington Post. Retrieved May 14, 2014.
- Kathy Carvajal, Arun Kristian Das, Luke Funk. "Second Ave. subway construction blast investigation - New York News". Myfoxny.com. Retrieved May 14, 2014.
- Creag, Katherine (March 20, 2013). "Worker Trapped in Mud Beneath MTA Site Rescued After 4 Hours". NBC New York. Retrieved May 15, 2014.
- "'The mud just grabbed me and wouldn't release me': Rescued Second Ave. subway worker who spent four hours in cold upper East Side muck recovering". NY Daily News. Retrieved May 15, 2014.
- "MTA subway worker trapped in tunnel rescued - News". METRO Magazine. Retrieved May 15, 2014.
- Most, Doug, The race underground : Boston, New York, and the incredible rivalry that built America’s first subway, First edition, New York : St. Martin’s Press, February 2014. ISBN 9780312591328.
- Smith, Greg B., "Concrete certification company American Standard Testing admits it faked safety and inspection reports on thousands of New York City buildings", New York Daily News, December 14, 2012. Retrieved December 14, 2012.
- "Chapter 3: Description of Construction Methods and Activities - Second Avenue Subway SDEIS" (PDF). MTA. Retrieved August 15, 2015.
- Wynne, Alexandra (January 20, 2009). "Fairytale of New York – Second Avenue Subway takes shape | Features | New Civil Engineer". Nce.co.uk. Retrieved August 2, 2009. (subscription required (. ))
- Hession, Michael (May 2, 2014). "A Subterranean Stroll Through NYC's Newest Train Tunnel". Gizmodo. Retrieved May 13, 2014.
- Rivoli, Dan (May 1, 2014). "Second Avenue Subway progress: Dec. 2016 end date on track". AM New York. Retrieved May 14, 2014.
- "Final Summary Report" (PDF). Metropolitan Transportation Authority. October 11, 2001. Retrieved April 10, 2014.
- "Making the Case" (PDF). Federal Transit Administration. August 20, 2004. Retrieved April 10, 2014.
- Hirschman, David (August 2008). "The T Train: NYC Will Get Its First New Subway Line in 70 Years". Wired.com (Wired Magazine) (Aug '08): 36. Archived from the original on July 25, 2008. Retrieved April 8, 2014.
The old (1960s) T service was also called the West End train. The reference was to Brooklyn. By contrast, the new T service will serve the East Side of Manhattan, and 'will unite the Upper and Lower East Sides.'
- "MTA Capital Program 2015-2019: Renew. Enhance. Expand." (PDF). Metropolitan Transportation Authority (New York). October 28, 2015. Retrieved October 28, 2015.
- Fitzsimmons, Emma G. (October 29, 2015). "Anger in East Harlem Over New Delays in 2nd Ave. Subway Plans". The New York Times. Retrieved November 3, 2015.
- "MTA to propose $1.5B to Phase 2 of 2nd Ave. subway construction". NY Daily News.
- "Second Avenue Subway Gets $1.5B for Phase 2 Construction". Curbed NY.
- Pete Donohue (March 2, 2015). "Second Ave. subway project will be cut short if funding doesn't come through, MTA chief says". NY Daily News. Retrieved March 24, 2015.
- Reeves, Hope (October 26, 2006). "The Second Avenue Subway Is Brought to You by the Letter T". New York Magazine. Retrieved August 2, 2009.
- V and W Trains join a long list of routes that have bowed out of the Subways, AM New York. Accessed April 8, 2014
|Wikimedia Commons has media related to IND Second Avenue Line.|
- Second Avenue Subway – Project Home – the MTA's homepage for this project
- Second Avenue Subway Photos – MTA's Flickr Website
- Second Avenue Subway: A New York Transit Museum on-line exhibit
- The Launch Box – a blog about building the Second Avenue Subway
- The Second Avenue Sagas – blog about New York City transit; hosts news from the Second Avenue Subway project
- The Second Avenue Subway – nycsubway.org