North–South Rail Link
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The tunnels would better link Amtrak's various trains into and out of the city, as well as the northern and southern MBTA Commuter Rail terminals. Today, the Amtrak Downeaster line from Maine has no direct connection to the Northeast Corridor routes south and west. Both Amtrak and the commuter rail networks terminate at North and South Stations.
From 1872 to 1969, the freight-only Union Freight Railroad provided a direct, street running connection between most of the south-side and north-side railroads, and served local customers and wharves in between.
From 1901 to 1938, the Atlantic Avenue Elevated provided direct passenger service past North and South Stations. The elevated trackage was not connected to any of the conventional railroad tracks.
Public transit connects North Station to South Station only indirectly, requiring two subway lines, either the Green Line and the Red Line, or the Orange Line and the Red Line. Amtrak recommends that passengers with young children or luggage take a taxi between the stations.
It is possible to traverse the gap via the Orange Line from Back Bay Station to North Station, but not all of the southern lines pass through Back Bay; the Old Colony Lines, Fairmount Line and Greenbush Line on the Commuter Rail do not. However, this does provide a connection for Amtrak passengers who want to transfer from the Northeast Corridor to the Downeaster. Similarly, it is possible to connect between South Station and the Fitchburg Line via the Red Line to or from Porter station. The North–South Rail Link is proposed to fill all these awkward gaps in service, with a direct connection requiring no transfers.
The leading proposal, called the Dorchester Avenue Alignment, would dig two 41-foot-diameter (12 m) deep-bore tunnels beneath Boston, extending beyond the present rail yards north and south of the city. The tunnels would pass about 20 feet beneath the I-90 extension, and would reach their maximum depth of 130 feet (40 m) at Central Station and North Station.
Because the tunnels would continue well south of downtown, three portals would accommodate separate connections to Back Bay Station to the west, the Old Colony Lines to the south, and the Fairmount Line running southwest. To the north, the tunnels would cross the Charles River about 70 feet below its surface (bypassing an existing drawbridge), and connect via portals to the Fitchburg Line and the other northbound rail lines.
The plan would require two or three new underground stations, which are proposed roughly beneath the current North and South Stations, and possibly a new Central Station near Aquarium Station. Central Station would have a 800-foot (240 m) platform; North Station and South Station would have 1,050-foot (320 m) platforms.
Pilings for a planned high-rise tower at South Station complicate a proposal to put the tunnels directly beneath the present South Station. Instead, the Dorchester Avenue Alignment proposal would move the tracks just east of South Station, and would build an underground facility about 100 feet (30 m) below the surface of the Fort Point Channel at the Summer Street crossing. Tracks at the underground South Station would have a 0.61% incline.
The new Central Station would connect with the Blue Line, the only rapid transit line in Boston that does not already connect with either North or South Station. The new station also would eliminate or reduce transfers to the light rail system for many commuter rail passengers with destinations in the central part of the business district. This would relieve transit congestion in the downtown core. The project is also expected to convert tens of thousands of automobile commuters to rail riders, relieving congestion somewhat on the Central Artery.
Like Philadelphia’s SEPTA system after the similar Center City Commuter Connection tunnel was built and connected two commuter rail systems, some of Boston’s trains would be through-routed from one side of the system to the other. Many services would still terminate at North and South Stations, on existing tracks that do not lead into the tunnels. This could also allow trains to pass parked train cars.
The DEIR/MIS assumes that about one-third of Amtrak trains to and from points south would be routed through the tunnel, stopping only at South Station, but with a stop north of Boston in Woburn, Massachusetts. The Downeaster service from Maine and New Hampshire was assumed to stop at North Station only, with a direct connection to more southerly service in Woburn rather than Boston. Thus, some operations would continue above ground at North Station and South Station, and all track and facilities would remain in place.
The tunnels would not be equipped to handle diesel locomotives, which may not be suited to the planned steep grades and closely spaced stops. That would force the MBTA to buy and run locomotives equipped for electric operations.
In May 2006, the Commonwealth of Massachusetts withdrew its sponsorship of the project due to its high capital cost (projected at several billion dollars, with wide variations depending on which option is chosen). Without matching local funds, the project was ineligible for federal funding, and was no longer listed as an approved project in state and Boston MPO capital plans.
The April 2007 document JOURNEY TO 2030: Transportation Plan of the Boston Region Metropolitan Planning Organization said "the MPO feels that a study of the right-of-way requirements should be conducted for preservation of that right-of-way so as to not preclude this project's going forward in the future."
In December 2007, the Federal Railroad Administration was interested in funding this project if the Massachusetts Executive Office of Transportation was interested in sponsoring it.
In August 2009, the project was brought back into the spotlight as a component of the New England transportation plan, a coordinated effort by the six New England states to improve rail transportation infrastructure by competing for the $8 billion allocated for high-speed rail in the American Recovery and Reinvestment Act of 2009.
In December 2011, former Governor Michael S. Dukakis reiterated his long-term support for rail service, saying he has been trying to convince the current Massachusetts administration "to get serious about building a rail link" rather than expand South Station. Dukakis stated on January 31, 2014 that he would rather the North–South Rail Link be named after him than doing so with South Station, as the Massachusetts House of Representatives unanimously voted to do.
Currently the MBTA and Amtrak use the Grand Junction Line for non-revenue moves between the two sides of its network. The line splits from the Framingham/Worcester Line near Boston University and the Mass Turnpike Allston/Brighton tolls, the track then crosses the Charles River into Cambridge. From there it runs through the East Cambridge neighborhood and into Somerville, where it connects to the commuter rail lines running from North Station just below the McGrath-O'Brien Highway. The line is single-tracked and slow, with a large number of at-grade crossings. Several of the crossings (Massachusetts Avenue, several streets around Kendall Square, Cambridge Street, and Gore Street) require trains to come to a near-complete stop before proceeding at their allowed track speed of 10 MPH.
If it were upgraded, the right-of-way would be severely limited and the corridor has been proposed as part of the Urban Ring project or a possible pedestrian trail. Additionally, only Worcester Line trains would be directly served. Trains from other southern lines would have to detour and reverse all the way to the west of Back Bay and Yawkey stations to reach it.
An above-ground rail link between South and North Stations was once proposed by the local Association for Public Transportation (which also supports the underground North–South Rail Link). This would eliminate the need to take multiple rapid transit lines to get between terminals, but would still require two transfers for Amtrak and commuter rail passengers passing through downtown Boston.
- Proposed Monorail Would Link Boston's North, South Stations
- North–South Rail Link too expensive, panel says
- The conservation connection – The Boston Globe
- William M. Fowler Jr., director of the Massachusetts Historical Society
- The MASSACHUSETTS SIERRA CLUB: North South Rail Link
- Sigmund, Pete (2007-06-06). "Triumph, Tragedy Mark Boston's Big Dig Project". Construction Equipment Guide. Retrieved 2007-12-10.
- http://www.amtrak.com/servlet/ContentServer/AM_Route_C/1241245668499/1237405732511 "Please note that in Boston, Amtrak Downeaster trains arrive and depart from Boston's North Station. All other Amtrak services in Boston depart from South Station and Back Bay Station. Passengers transferring between the Downeaster and other Amtrak services must make their own arrangements for the transfer between stations in Boston."
- "Downeaster - the Train between Boston and Portland, ME". Amtrak. Retrieved 2012-04-18. "Transfer by taxi is recommended for passengers traveling with significant amounts of luggage or young children."
- MBTA, et al., North South Rail Link Project, Major Investment Study, vol. I, figure 2.5–7 (June 2003).
- MBTA, et al., North South Rail Link Project, Major Investment Study, vol. I, figure 2.5-4 (June 2003).
- MBTA, et al., North South Rail Link Project, Major Investment Study, vol. I, figure 2-38 (June 2003).
- MBTA, et al., North South Rail Link Project, Major Investment Study, vol. I, 2–36 (June 2003).
- http://www.bostonmpo.org/bostonmpo/resources/reports.htm (see pages 2–10).[dead link]
- http://www.car-free.com/nsrl/NSRL_CAC_Letter_to_EOT_20071218.pdf[dead link]
- Dukakis, Michael S.; O'Brien, Robert B. (2009-08-23). "Finally, a rail plan for New England". The Boston Globe.
- Grillo, Thomas (2011-12-16). "South Station expansion chugging along". Boston Business Journal. Retrieved 23 December 2011.
- Sweet, Laurel (January 31, 2014). "Michael Dukakis decries terminal honor?". Boston Herald.
- City of Cambridge, Mass.: GRAND JUNCTION RAIL-WITH-TRAIL FEASIBILITY STUDY – Oct. 2006 (Page 12)
- City of Cambridge, Mass.: GRAND JUNCTION RAIL-WITH-TRAIL FEASIBILITY STUDY – Oct. 2006
- Boston Transportation Resources – North–South Rail Link
- MBTA North–South Rail Link project Major Investment Study