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955:. However, the Union Square Branch will be initially served by the E Branch rather than the D Branch from its opening until Medford Branch testing begins. By March 2021, the station was expected to open in October 2021. This was delayed in June 2021 to a December 2021 opening due to supply chain issues, and in October 2021 to a March 2022 opening due to issues with a substation. Train testing on the Union Square Branch began in December 2021. Pre-revenue service, where trains on the branch were operated on a revenue schedule but without passengers aboard, began on January 16, 2022.
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the station was in place by April 2021, with overhead lines added in May. In May 2021, the MBTA indicated that the elevator to the
Prospect Street bridge might not be complete by the time the station opened, but that the normal accessible pedestrian route from Prospect Street would be available. Electrical work began in mid-2021; canopy lighting was functional and next-train countdown signs were in place by that November.
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with
Medford and Union Square branches as the preferred alternative; the Union Square Branch was to follow the Fitchburg Line right-of-way. That December, the Secretary of Environmental Affairs issued a certificate that required analysis of a Somerville Avenue alignment for the Union Square Branch in the draft environmental impact report (DEIR) for the Green Line Extension (GLX).
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Prospect Street south of
Somerville Avenue. Union Square was among the planned station sites officially announced in May 2008. Several additional potential tunnel alternatives for an underground station at Union Square, with a short tunnel near Prospect Street or a longer tunnel under Somerville Avenue, were analyzed in 2008 and found not to be cost-effective.
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allowed for final integration of the
Medford Branch, elimination of a speed restriction on the Lechmere Viaduct, and other work. After that closure, Union Square was served by a mixture of D and E branch trains until November 1, when E branch trains began operating pre-revenue service on the Medford Branch.
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extensions, including a branch to Union Square. The
Massachusetts Executive Office of Transportation and Public Works submitted an Expanded Environmental Notification Form (EENF) to the Massachusetts Executive Office of Environmental Affairs in October 2006. The EENF identified a Green Line extension
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it – was listed as a possibility in 2012 as an interim air quality mitigation measure in response to delays in building the Green Line
Extension. However, such a station would have been costly to build and could not have been completed by the 2015 deadline, and was therefore not supported by MassDOT.
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Prospect Street was placed on a bridge over the railroad by 1849, but
Webster Street crossed the railroad at grade. Planning to eliminate the eleven remaining grade crossings in Somerville, five of which were on the Fitchburg Route mainline, began in 1900. In 1906, the city engineer proposed to raise
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The main entrance to the station will be a walkway from
Prospect Street to the north. To the north of the entrance plaza will be "Station Plaza", built by the developer of an adjacent building. An elevator and stairs will connect to the Prospect Street bridge. A covered shelter will have racks for 86
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The Union Square Branch opened on March 21, 2022. The elevator opened in late April 2022. From August 6 to 21, 2022, Union Square was served by C and D branch trains, as the E branch was closed for maintenance work. The Union Square Branch was closed from August 22 to
September 18, 2022; the closure
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A groundbreaking ceremony was held on June 25, 2018. With the design complete, work on the station foundation began in
January 2020. The station platform was poured by early August 2020, with the canopy constructed that September. Tracks were installed at the station in October 2020. A signal hut at
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commercial rents were rising more than typical in Union Square. In November 2019, the USQ developer, US2, agreed to fund an elevator connecting the station to the Prospect Street bridge. The first new buildings adjacent to the station broke ground in 2021 and are expected to be completed in 2022–23.
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contract for the GLX was awarded in November 2017. The winning proposal included six additive options – elements removed during value engineering – including full-length canopies at all stations. Station design advanced from 0% in March 2018 to 24% that December and to 100% in October 2019. The 100%
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In October 2012, the Somerville Board of Aldermen approved the Union Square Redevelopment Plan and authorized an $ 8 million bond, including $ 6 million to purchase the land and $ 2 million for cleanup and station planning. The North Prospect block – a mostly industrial area bordered by the railroad
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Updated plans shown in May 2011 moved the platform eastwards and added moved the kiss-and-ride area from the bridge to north of the headhouse. Plans presented in February 2012 enlarged the upper level of the headhouse to have it become the primary entrance. This would have allowed the lower entrance
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The DEIR, released in October 2009, selected the Fitchburg Line routing on the basis of lower cost, higher reliability due to grade separation, and less property acquisition required than the other alternatives. Preliminary plans in the DEIR called for a curved station platform with faregates at the
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station at Union Square has been considered; by 2003, a stop was expected to open within five years. The 2004 state Program for Mass Transportation estimated such a station would attract 390 daily riders. A Union Square commuter rail station – either in addition to a Green Line station or in lieu of
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In August 2012, the City of Somerville, MassDOT, and the MBTA reached a memorandum of agreement about the station. Through the Somerville Redevelopment Authority, the City would acquire $ 8 million worth of land for the station and grant the MBTA a permanent easement, while retaining the rights for
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trains plus several off-peak mainline local trains. As passengers volumes dwindled, the station building was reused for manufacturing by 1924. By 1929, the only service to Union Square and Somerville was one outbound and two inbound Watertown Branch trains. Service to the two stations ended on July
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After the Somerville Avenue grade crossing was eliminated in 1908–09, work began in April 1911 to raise Webster Street above the tracks. Webster Street and several adjacent buildings were raised about 20 feet (6.1 m), while the tracks were slightly lowered. A special bridge on the east side of
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surface stations rather than full rapid transit stations, with canopies, faregates, escalators, and some elevators removed. The new design for Union Square removed the direct access from the Prospect Street overpass, with entrance to be only from the plaza on the north side of the station. Several
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By early 2008, three alignments were under consideration: a surface route along the Fitchburg Line, with a station east of Prospect Street; a surface route on Somerville Avenue, with a station west of Prospect Street; and a single-track loop combining both routes, with an underground station under
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Cost increases triggered a wholesale reevaluation of the GLX project in 2015. A scaled-down station design was released in 2016, with a design and construction contract issued in 2017. Construction of Union Square station began in early 2020 and was largely completed by late 2021. The station was
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The USQ mixed-use development in Union Square, which is primarily replacing light industrial buildings, is intended as an anti-gentrification measure by increasing housing supply and subsidizing nearby households and businesses at risk of displacement. Still, by late 2014, both residential and
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opened a station at Prospect Street in the 1840s; it was renamed to Union Square around 1875. The station was closed in 1938 and demolished around that time. Extensions to the Green Line were proposed throughout the 20th century, but a Union Square spur was not considered until the early 21st
866:. In December 2015, the MBTA ended its contracts with four firms. Construction work in progress continued, but no new contracts were awarded. At that time, cancellation of the project was considered possible, as were elimination of the Union Square Branch and other cost reduction measures.
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The platform is 8 inches (200 mm) high for accessible boarding on current light rail vehicles (LRVs), and can be raised to 14 inches (360 mm) for future level boarding with Type 9 and Type 10 LRVs. It is also provisioned for future extension to 300-foot (91 m) length. A
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the road bridge was built for a 4-foot (1.2 m)-diameter water main that weighed 700 pounds per foot (1,000 kg/m). As part of the project, the 67-year-old station building was replaced by a larger building on the south side of the tracks. Work was completed in December 1911.
1115:"Pleased to report the @MBTA elevator for Union Square Station is now open! Thank you to @discoverUSQ for following through on this commitment to our community. Thanks as well to @square_council and all who came together to add this necessary element to the Green Line Extension"
1724:"Approval and Promulgation of Air Quality Implementation Plans; Massachusetts—Amendment to Massachusetts' SIP (for Ozone and for Carbon Monoxide) for Transit Systems Improvements and High Occupancy Vehicle Facilities in the Metropolitan Boston Air Pollution Control District)"
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criticized the scaled-down station designs at Union Square and East Somerville for having long ramps rather than elevators, saying they were not sufficient for accessibility. In December 2016, the MBTA announced a new planned opening date of 2021 for the extension.
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century. Several station sites and alignments were considered, with the Prospect Street location and the route along the Fitchburg Line chosen in 2009. The MBTA agreed in 2012 to open the station by 2017, and a construction contract was awarded in 2013.
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The station entrance plaza is located on the east side of the Prospect Street bridge, next to a small utility building. A walkway connects the plaza and platform, with fare vending machines located in a wider section of the walkway at its west end.
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The original temporary ramp to Prospect Street was closed on April 20, 2023, for construction of the permanent path. The Union Square Branch was closed from September 18 to October 10, 2023, during repairs to Squires Bridge, which carries the
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In September 2013, MassDOT awarded a $ 393 million (equivalent to $ 507 million in 2023), 51-month contract for the construction of Phase 2/2A – Lechmere station, the Union Square Branch, and the first segment of the Medford Branch to
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A further extension to Porter has been proposed by local officials. In February 2022, the Cambridge City Council signed a resolution requesting work around Union Square station not to interfere with such an extension.
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to Union Square was to be about 0.4 miles (0.6 km) to the east. A 1980s corridor plan considered a direct extension to Union Square as a possible alternative. The 1991 agreement between the state and the
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557:, 225 feet (69 m) long and 20 feet (6.1 m) wide, located about 250 feet (76 m) east of Prospect Street between the Green Line tracks. A canopy covers the full length of the platform.
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3148:"Building A Better T: GLX Medford Branch to Open in Late November 2022; Shuttle Buses to Replace Green Line Service for Four Weeks between Government Center and Union Square beginning August 22"
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runs roughly northwest–southeast through the station area, with the two-track Union Square Branch of the Green Line on the north side of the Fitchburg Line tracks. The station has a single
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overhead. In return, the MBTA and MassDOT would pay for cleanup costs at the site, begin construction by the spring of 2014, and open the station no later than "late 2016-early 2017".
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923:. A 2014 study found that the areas around Union Square and East Somerville stations were expected to have the highest rent increases – up to 67% in some instances.
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The coming of the station provided an opportunity for the city to redevelop Union Square and surrounding areas. A 2009 rezoning designated commercial corridors and
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In August 2015, the MBTA disclosed that project costs had increased substantially, with Phase 2A rising from $ 387 million to $ 898 million. This triggered a
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west end. A two-story station building would connect to the Prospect Street bridge, with an additional connection directly to platform level from the north.
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to be built. A further update in June 2013 removed a mechanical penthouse, modified the lobby designs, and added bicycle racks near the upper entrance.
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1.8 miles (2.9 km) of the line between Beacon Street and Somerville Avenue to eliminate the five level crossings, but that scheme was not adopted.
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Union Square station is located on the east side of the Prospect Street bridge, about 900 feet (270 m) south of the Union Square intersection. The
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station – which was located off Medford Street (now Webster Avenue), slightly west of Prospect Street – was opened within several years to serve the
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9, 1938, along with the end of passenger service on the Watertown Branch. The station building was demolished sometime between 1936 and 1940.
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2736:"US2 and the city of Somerville break ground on $ 2 billion project - working with Gilbane Building Company and Cranshaw Construction"
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over the tracks. The closure was originally planned for July 18 to August 28, but was delayed and shortened due to public criticism.
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2007:
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846:– with the stations to open in early 2017. Site cleanup began in September 2014. Design of the station was completed in late 2014.
1974:
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tracks, Prospect Street, Somerville Avenue, and the rear of residential properties on Allen Street – was acquired by the city via
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To Ball Square/Tufts University". The 2003 Program for Mass Transportation considered both Green Line and Blue Line extensions to
2036:. Massachusetts Executive Office of Transportation and Public Works; Federal Transit Administration. October 2009. Archived from
2006:. Massachusetts Executive Office of Transportation and Public Works: Federal Transit Administration. October 2009. Archived from
673:
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The Charlestown Branch Railroad was extended through Somerville in 1841, opening on January 5, 1842. It was absorbed into the
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in the future. Bike racks with space for 34 bikes are located in the entrance plaza. Public artwork at the station includes
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Map of a 1966 extension proposal – typical of 20th-century plans – that did not include service directly to Union Square
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by Matthew Trimble – a sculptural archway over the walkway to the platform – as well as murals on station sign panels.
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2620:"The Dimensions of Displacement: Baseline Data for Managing Neighborhood Change in Somerville's Green Line Corridor"
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Green Line Extension Project Draft Environmental Impact Report / Environmental Assessment and Section 4(f) Statement
2003:
Green Line Extension Project Draft Environmental Impact Report / Environmental Assessment and Section 4(f) Statement
1823:
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trains in the mid-19th century. The nearby square became Union Square in the 1860s, but the station was not renamed
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to be extended to Union Square. In April 2021, the MBTA indicated that Union Square would instead be served by the
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booth is located at the east end of the platform, with an at-grade emergency exit walkway leading to Allen Street.
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for $ 4.5 million in June 2013. The properties were to be vacated by August. The city also received a $ 1 million
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1026:. MBTA Fiscal and Management Control Board and the MassDOT Board of Directors. May 9, 2016. pp. 5, 6, 47.
4236:
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912:
769:, including alignments that would deviate from the Lowell Line right-of-way to directly serve Union Square.
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are located on each side of the walkway. The tail tracks are designed not to preclude further extension to
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elements of the reduced-cost project design were criticized by community advocates and local politicians.
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An updated agreement, announced in May 2005, added a Union Square branch to the Green Line Extension. The
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Horsecar and later electric streetcar service cut ridership at urban stations; by 1917, Union Square and
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1058:
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2643:
Sacci, Joseph; et al. (May 2, 2014). "Chapter 4: Union Square Station & Revitalization Plan".
2400:
1842:"Certificate of the Secretary of Environmental Affairs on the Expanded Environmental Notification Form"
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1871:. Massachusetts Executive Office of Transportation and Public Works. February 19, 2008. Archived from
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3088:. Vol. 58, no. 11–12. Boston Street Railway Association. November–December 2021. p. 3.
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915:, the Union Square redevelopment has been criticized by local advocates for its potential to cause
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bikes. The elevator opened in April 2022, but Station Plaza will not be completed until 2023. Five
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1973:. Massachusetts Executive Office of Transportation & Public Works. p. 30. Archived from
1822:. Massachusetts Executive Office of Transportation and Public Works. pp. 4–6. Archived from
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2461:"Anger grows over design of green line stations that limit access and add distance for disabled"
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design relocated a utility building between the tracks so as to not preclude future extension.
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3195:"MBTA Green Line service at Union Square reopens ahead of schedule with all slow zones lifted"
1429:. Boston and Maine Railroad. September 29, 1929. pp. 45–49 – via Wikimedia Commons.
1395:. Boston and Maine Railroad. September 30, 1917. pp. 80–81 – via Wikimedia Commons.
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3284:"Lechmere, Union Square T stops open March 21 as council reminds of Porter Square connection"
3243:"July Service Changes Will Allow Crews to Continue Track Improvement Work Across MBTA System"
2718:"Buses will be back for 11 months at Lechmere as green line extension T project rolls onward"
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3180:"September Service Changes Will Allow Crews to Continue Improvement Work Across MBTA System"
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2149:. Massachusetts Department of Transportation. June 11, 2013. pp. 39–56. Archived from
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sites; a 2012 revitalization plan led to the selection of a master developer for the area.
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3221:"That new Green Line branch to Union Square? The T is closing it for 42 days this summer"
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2343:. Massachusetts Department of Transportation. November 6, 2014. p. 7. Archived from
952:
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In May 2016, the MassDOT and MBTA boards approved a modified project that had undergone
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2646:
Development and Its Discontents: Commercial Gentrification in Somerville's Union Square
1723:
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1091:"Union Square Revitalization Project Update for the Somerville Redevelopment Authority"
685:
638:
517:
2566:
Response to the Request for Proposal for the Green Line Extension Design Build Project
2173:. Massachusetts Department of Transportation. June 11, 2013. p. 3. Archived from
1794:
Beyond Lechmere Northwest Corridor Study: Major Investment Study/Alternatives Analysis
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to be closed to accommodate the outbound track, were a proposed further extension to
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1241:. New England Railway Publishing Company. 1858. p. 16 – via Google Books.
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1946:. Massachusetts Executive Office of Transportation and Public Works. Archived from
1921:. Massachusetts Executive Office of Transportation and Public Works. Archived from
1895:
1661:
1657:
733:
654:
562:
360:
280:
2211:"City, MassDOT, MBTA Sign Pact on Green Line Station Development for Union Square"
1204:. New England Historic Genealogical Society. p. LXV – via Google Books.
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1684:
Special Report 221: Light Rail Transit: New System Successes at Affordable Prices
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502:
391:
118:
1075:. Massachusetts Bay Transportation Authority. February 2, 2021. pp. 11, 12.
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3809:
3641:
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3073:(Press release). Massachusetts Bay Transportation Authority. December 23, 2021.
3028:"The opening of the first Green Line Extension branch has been delayed — again"
2275:"$ 393 Million Approved to Bring Green Line to Union Square, Washington Street"
2125:. Massachusetts Department of Transportation. February 13, 2012. Archived from
1004:. Massachusetts Bay Transportation Authority. November 19, 2019. pp. 7–10.
916:
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2101:. Massachusetts Department of Transportation. February 8, 2012. Archived from
1941:"Green Line Extension Project: Summary of Station Evaluations/Site Selections"
4215:
4053:
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3506:
3431:
3182:(Press release). Massachusetts Bay Transportation Authority. August 28, 2023.
2919:. Massachusetts Bay Transportation Authority. January 6, 2011. Archived from
1750:. Central Transportation Planning Staff. January 2004. pp. 5C-33, 5C-37.
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164:
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3164:. Massachusetts Bay Transportation Authority. April 20, 2023. Archived from
3150:(Press release). Massachusetts Bay Transportation Authority. August 5, 2022.
3101:"Baker-Polito Administration Celebrates Opening of the Green Line Extension"
2967:"The MBTA is planning to open part of the Green Line Extension this October"
2888:. Massachusetts Bay Transportation Authority. September 7, 2021. p. 19.
2818:. Massachusetts Bay Transportation Authority. September 1, 2020. p. 15.
2382:"MBTA Ending Several Contracts Associated With Green Line Extension Project"
801:
3245:(Press release). Massachusetts Bay Transportation Authority. June 29, 2023.
2902:. Massachusetts Bay Transportation Authority. November 2, 2021. p. 21.
2832:. Massachusetts Bay Transportation Authority. November 3, 2020. p. 15.
2591:. Massachusetts Department of Transportation. January 30, 2019. p. 14.
2532:(Press release). Massachusetts Department of Transportation. Archived from
1656:. Division of Metropolitan Planning. December 1926. pp. 6, 7, 34, 35.
887:
2947:. Massachusetts Department of Transportation. January 2012. Archived from
2790:. Massachusetts Bay Transportation Authority. January 7, 2020. p. 11.
2605:. Massachusetts Department of Transportation. November 5, 2019. p. 1.
903:
USQ buildings under construction adjacent the station, left, in April 2022
784:, was published in 2005. The analysis studied a variety of light rail and
3363:
3323:
3015:. Massachusetts Bay Transportation Authority. March 29, 2021. p. 20.
2096:"'Station Design Meeting': Washington Street & Union Square Stations"
1847:. Massachusetts Executive Office of Environmental Affairs. Archived from
745:
2846:. Massachusetts Bay Transportation Authority. April 6, 2021. p. 19.
2804:. Massachusetts Bay Transportation Authority. August 4, 2020. p. 5.
3258:"Project requiring Green Line Extension closure postponed to September"
2860:. Massachusetts Bay Transportation Authority. June 1, 2021. p. 27.
2695:"Green Line plan brings economic tension to Union Square in Somerville"
570:
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serving the two tracks of the Union Square Branch, which parallels the
498:
478:
2226:"Aldermen Authorize $ 8 Million Bond for Union Square Green Line Site"
2077:. Massachusetts Department of Transportation. May 2011. Archived from
1639:
1219:"Spectacular Engineering Feat Being Performed at Union Sq, Somerville"
533:. A major development project is under construction near the station.
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2874:. Massachusetts Bay Transportation Authority. May 4, 2021. p. 2.
2363:"Ballooning Cost Throws Future Of Green Line Extension Into Question"
1633:
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1442:
2603:"November 5, 2019 Community Working Group Meeting – Summary Minutes"
1045:
MBTA Contract No. E22CN07: Green Line Extension Design Build Project
1020:
Interim Project Management Team Report: Green Line Extension Project
858:
A Fitchburg Line train passing the cleared station site in July 2015
2625:. Metropolitan Area Planning Council. February 2014. Archived from
1786:"Chapter 4: Identification and Evaluation of Alternatives – Tier 1"
805:
The proposed site (left) in 2011, prior to acquisition and clearing
586:
148:
2652:. Somerville Community Corporation. pp. 21–30. Archived from
1722:
United States Environmental Protection Agency (October 4, 1994).
1677:"Boston's Light Rail Transit Prepares for the Next Hundred Years"
1122:
2914:"MBTA Light Rail Transit System OPERATIONS AND MAINTENANCE PLAN"
2553:. Massachusetts Bay Transportation Authority. November 20, 2017.
1139:. Massachusetts Bay Transportation Authority. December 17, 2023.
1047:. Massachusetts Bay Transportation Authority. December 11, 2017.
3311:
1817:"Green Line Extension Expanded Environmental Notification Form"
1088:
653:
and other local stops, Prospect Street was primarily served by
2788:"GLX Community Working Group Monthly Meeting: January 7, 2020"
2530:"Green Line Extension Project Design-Build Team Firm Selected"
2802:"GLX Community Working Group Monthly Meeting: August 4, 2020"
2401:"Axing Green Line Extension Still On The Table, Pollack Says"
2249:"Authority Takes Union Square Parcels for Green Line Station"
1963:
1891:"Potential Green Line stops announced in Somerville, Medford"
1711:. Somerville Transportation Equity Partnership. June 3, 2004.
2994:. Massachusetts Department of Transportation. Archived from
2300:"State approves $ 393m for three new stations on Green Line"
1938:
1913:
1797:. Massachusetts Bay Transportation Authority. Archived from
1783:
1706:"Beyond Lechmere Northwest Corridor Project Project History"
1598:. Massachusetts Department of Transportation. Archived from
1202:
Proceedings of the New England Historic Genealogical Society
1061:. Massachusetts Bay Transportation Authority. November 2019.
545:
The station in March 2022 with the utility building at right
513:(GLX), which added two northern branches to the Green Line.
2144:"Union Square and Washington Street Station Design Meeting"
1634:
Central Transportation Planning Staff (November 15, 1993).
1454:. Boston Metropolitan Planning Organization. Archived from
1307:. December 27, 1903. p. 35 – via Newspapers.com.
1136:
2945:
Green Line Extension Project: FY 2012 New Starts Submittal
1636:"The Transportation Plan for the Boston Region - Volume 2"
1591:
Central Transportation Planning Staff (January 23, 2012).
1379:. December 6, 1911. p. 11 – via Newspapers.com.
1325:. January 28, 1906. p. 26 – via Newspapers.com.
1259:. November 30, 1875. p. 3 – via Newspapers.com.
1198:"Memoirs of the New England Historic Genealogical Society"
3059:. Massachusetts Bay Transportation Authority. p. 19.
1555:. January 23, 1940. p. 8 – via Newspapers.com.
873:
to reduce its cost. Stations were simplified to resemble
2326:(Press release). City of Somerville. September 25, 2014.
1565:
1537:. March 26, 1936. p. 15 – via Newspapers.com.
2938:"Travel Forecasts: Systemwide Stats and SUMMIT Results"
1623:. June 25, 1922. p. 71 – via Newspapers.com.
1512:. April 12, 1938. p. 3 – via Newspapers.com.
1654:
Report on Improved Transportation Facilities in Boston
1443:
Central Transportation Planning Staff (January 2004).
1413:. July 19, 1924. p. 5 – via Newspapers.com.
1361:. April 5, 1911. p. 6 – via Newspapers.com.
1343:. July 12, 1909. p. 2 – via Newspapers.com.
1154:. Boston Street Railway Association. pp. 87, 88.
41:
A train arriving at Union Square station in March 2022
3071:"Test Trains Now Running on the Green Line Extension"
1225:. June 6, 1911. p. 8 – via Newspapers.com.
1185:. May 14, 1849. p. 2 – via Newspapers.com.
4232:
Railway stations in the United States opened in 2022
2213:(Press release). City of Somerville. August 9, 2012.
1407:""To Let" Sign on Railroad Station at Prospect Hill"
1089:
Union Square Station Associates (October 18, 2021).
2507:"Green Line extension contract officially approved"
1038:"Execution Version: Volume 2: Technical Provisions"
16:
Light rail station in Somerville, Massachusetts, US
3127:"Changes to Transit Service in the MBTA district"
2900:"GLX Community Working Group Monthly Meeting #48"
2886:"GLX Community Working Group Monthly Meeting #46"
2858:"GLX Community Working Group Monthly Meeting #43"
2844:"GLX Community Working Group Monthly Meeting #41"
2830:"GLX Community Working Group Monthly Meeting #36"
2816:"GLX Community Working Group Monthly Meeting #34"
1638:. National Transportation Library. Archived from
1073:"GLX Community Working Group Monthly Meeting #39"
4213:
2762:"Officials Break Ground On Green Line Extension"
2484:"New Green Line stations are delayed until 2021"
1573:. City of Somerville. p. 14. Archived from
695:
3358:
2872:"Community Working Group (CWG) Meeting Minutes"
1964:Vanasse Hangen Brustlin, Inc. (November 2008).
1593:"Green Line Extension SIP Mitigation Inventory"
796:
2324:"Union Sq Green Line Station Site Work Begins"
1967:Consideration of Tunnel Alignment Alternatives
1480:Humphrey, Thomas J.; Clark, Norton D. (1986).
1150:Humphrey, Thomas J.; Clark, Norton D. (1985).
1105:
1103:
509:. It opened on March 21, 2022, as part of the
4227:Railway stations in Somerville, Massachusetts
3344:
3120:
3118:
3025:
2964:
2614:
2612:
2338:"Washington Street and Union Square Stations"
2120:"Washington Street and Union Square Stations"
1754:
1715:
1479:
1473:
1173:
1171:
1149:
2958:
2438:"State OK's a cut-down Green Line extension"
2380:Conway, Abby Elizabeth (December 10, 2015).
1939:Vanasse Hangen Brustlin, Inc (May 2, 2008).
1914:Vanasse Hangen Brustlin, Inc (May 1, 2008).
1882:
1840:Golledge, Robert W. Jr. (December 1, 2006).
1784:Vanasse Hangen Brustlin, Inc (August 2005).
1284:
633:New (left) and old stations in December 1911
2906:
2794:
2475:
2399:Conway, Abby Elizabeth (December 9, 2015).
1814:
1213:
1211:
1152:Boston's Commuter Rail: The First 150 Years
1100:
930:
740:called for rapid transit along the B&M
676:stations were served by four to five daily
3351:
3337:
3115:
3098:
2930:
2609:
2425:. Massachusetts Bay Transportation Agency.
1989:
1987:
1686:. Transportation Research Board: 286–308.
1646:
1438:
1436:
1168:
864:wholesale re-evaluation of the GLX project
715:
483:Massachusetts Bay Transportation Authority
35:
2199:. p. NO3 – via Newspapers.com.
1627:
1013:
1011:
838:grant to clean up one of the properties.
616:– stop in Union Square near the station.
3255:
3186:
2669:
2521:
1839:
1668:
1208:
1109:
996:
994:
992:
990:
988:
986:
984:
934:
898:
853:
800:
774:Beyond Lechmere Northwest Corridor Study
628:
540:
3026:DeCosta-Klipa, Nik (October 21, 2021).
2504:
2360:
2272:
2246:
2223:
1984:
1907:
1584:
1566:Bluestone Planning Group (April 2003).
1433:
1373:"Great Task Will Be Completed Saturday"
1319:"To Abolish Somerville Grade Crossings"
1278:
1263:
1143:
1059:"Union Square Branch – GLX Roll Plan 4"
1030:
732:Rapid transit extension northwest from
4214:
3140:
3092:
3051:
2754:
2692:
2672:"Boston needs ideas — from Somerville"
2527:
2481:
2435:
2398:
2379:
1760:
1482:Boston's Commuter Rail: Second Section
1269:
1196:Cutter, William Richard (April 1909).
1195:
1008:
3332:
2642:
2540:
2273:Orchard, Chris (September 25, 2013).
2190:
1484:. Boston Street Railway Association.
1129:
1096:. Somerville Redevelopment Authority.
1084:
1082:
981:
939:Station construction in November 2020
375:
322:
245:
144:
3281:
3218:
3192:
3099:MacCormack, Terry (March 21, 2022).
2965:DeCosta-Klipa, Nik (April 9, 2021).
2715:
2458:
2417:
2308:. September 26, 2013. Archived from
1888:
1866:"Station Workshop – Summary Minutes"
1674:
1452:2004 Program for Mass Transportation
3124:
2572:. GLX Constructors. September 2017.
2528:Jessen, Klark (November 17, 2017).
2505:Vaccaro, Adam (November 20, 2017).
2482:Dungca, Nicole (December 7, 2016).
2224:Orchard, Chris (October 12, 2012).
1777:
624:
13:
2693:Kooker, Naomi (December 9, 2014).
2168:"Public Meeting – Summary Minutes"
1079:
14:
4248:
3317:Union Square station (Somerville)
3305:
3134:Boston Street Railway Association
3010:"Report from the General Manager"
2361:Metzger, Andy (August 24, 2015).
2193:"Union Square site for T station"
536:
3785:
3728:Ashmont–Mattapan High-Speed Line
3572:
3452:
3372:
3310:
3275:
3256:Lisinski, Chris (July 5, 2023).
3249:
3235:
3212:
3193:Cole, Katie (October 11, 2023).
3172:
3154:
3077:
2716:Levy, Marc (November 20, 2019).
2247:Orchard, Chris (June 10, 2013).
1763:"$ 770m transit plans announced"
1741:"Chapter 5C: System Expansion".
1515:
894:
708:
323:
246:
143:
3063:
3045:
3019:
3002:
2984:
2892:
2878:
2864:
2850:
2836:
2822:
2808:
2780:
2740:New England Real Estate Journal
2728:
2709:
2686:
2670:McMorrow, Paul (July 1, 2014).
2663:
2636:
2595:
2581:
2557:
2498:
2452:
2436:Dungca, Nicole (May 10, 2016).
2429:
2411:
2392:
2373:
2354:
2330:
2316:
2292:
2266:
2240:
2217:
2203:
2184:
2160:
2136:
2112:
2088:
2064:
2017:
1957:
1932:
1858:
1833:
1808:
1744:Program for Mass Transportation
1734:
1698:
1609:
1559:
1541:
1523:
1498:
1445:"Chapter 5C: Service Expansion"
1417:
1399:
1383:
1365:
1347:
1329:
1311:
1293:
1245:
1229:
1189:
3219:Kool, Daniel (June 29, 2023).
3052:Dalton, John (June 21, 2021).
2420:"Cost Reduction Opportunities"
2191:Byrne, Matt (August 9, 2012).
1916:"Green Line Extension Project"
1287:"Map of the City of Cambridge"
1065:
1051:
947:Original plans called for the
738:Various 20th-century proposals
501:terminal station has a single
1:
3054:"Green Line Extension Update"
2459:Levy, Marc (March 19, 2019).
974:
696:Green Line Extension planning
493:neighborhood of southeastern
3282:Levy, Marc (March 1, 2022).
2992:"Green Line Extension (GLX)"
1889:Ryan, Andrew (May 7, 2008).
1815:TranSystems (October 2006).
1761:Daniel, Mac (May 19, 2005).
1301:"To Abolish Grade Crossings"
1238:ABC Pathfinder Railway Guide
909:transit-oriented development
824:transit-oriented development
797:Station design and contracts
736:was first proposed in 1922.
700:
7:
3105:Government of Massachusetts
2448:– via Newspapers.com.
1773:– via Newspapers.com.
1617:"Three New Subways Planned"
1270:Draper, Martin Jr. (1852).
849:
759:Conservation Law Foundation
529:, but is now served by the
221:3,645 boardings (projected)
10:
4253:
4222:Green Line (MBTA) stations
1568:"Union Square Master Plan"
913:As with the GLX as a whole
619:
4112:
4029:
3951:
3933:Boston University Central
3858:
3783:
3726:
3688:
3655:
3570:
3450:
3370:
2418:Arup (December 9, 2015).
2025:"Chapter 3: Alternatives"
1995:"Chapter 3: Alternatives"
1337:"Work on Overhead Bridge"
1272:"Map of Somerville, Mass"
1183:Boston Evening Transcript
495:Somerville, Massachusetts
464:
457:
453:
449:
445:
405:
380:
377:Boston and Maine Railroad
372:
332:
319:
304:
300:
296:
255:
242:
238:
233:
229:
225:
220:
216:
211:
203:
198:
190:
182:
177:
139:
125:
113:
103:
88:42.3771444°N 71.0942917°W
66:
61:Somerville, Massachusetts
55:Prospect Street south of
51:
46:
34:
23:
2589:"GLX Project Open House"
931:Construction and opening
525:initially served by the
4162:Northeastern University
3805:Hynes Convention Center
3084:"MBTA Current Events".
1662:2027/mdp.39015049422689
1274:. J.T. Powers & Co.
1002:"Public meeting boards"
93:42.3771444; -71.0942917
3938:Boston University East
2312:on September 27, 2013.
940:
921:community displacement
904:
859:
806:
778:Major Investment Study
634:
546:
4152:Longwood Medical Area
3319:at Wikimedia Commons
2998:on November 30, 2021.
2705:on November 18, 2018.
1980:on February 28, 2017.
1285:H.F. Walling (1854).
938:
902:
857:
804:
782:alternatives analysis
632:
544:
4237:Green Line Extension
3878:Chestnut Hill Avenue
3532:Massachusetts Avenue
3522:Tufts Medical Center
3111:on December 4, 2022.
2548:"GLX Program Update"
2536:on January 28, 2022.
2517:on January 24, 2018.
2494:on December 9, 2016.
2236:on January 31, 2013.
1605:on October 30, 2014.
1506:"At the State House"
1461:on February 16, 2008
1179:"Railroad Accidents"
1137:"2023–24 System Map"
763:Green Line Extension
511:Green Line Extension
475:Union Square station
4157:Museum of Fine Arts
3324:MBTA – Union Square
3125:Belcher, Jonathan.
1675:McCarthy, James D.
1580:on August 26, 2014.
1392:Local Train Service
661:until around 1875.
531:Green Line D branch
527:Green Line E branch
108:Union Square Branch
84: /
47:General information
3168:on April 20, 2023.
2471:on March 25, 2019.
1113:(April 27, 2022).
941:
905:
860:
807:
686:MBTA Commuter Rail
651:Somerville station
639:Fitchburg Railroad
635:
547:
518:Fitchburg Railroad
430:Boston – Fitchburg
381:Following station
373:Preceding station
333:Following station
320:Preceding station
256:Following station
243:Preceding station
183:Bicycle facilities
4209:
4208:
4205:
4204:
4089:Brookline Village
4021:St. Mary's Street
3981:Washington Square
3893:Washington Street
3830:Government Center
3779:
3778:
3627:Downtown Crossing
3512:Downtown Crossing
3492:Community College
3437:Government Center
3315:Media related to
3231:on June 30, 2023.
3103:(Press release).
2954:on March 7, 2017.
2926:on March 7, 2017.
2659:on July 24, 2014.
880:E. Denise Simmons
871:value engineering
844:Washington Street
786:bus rapid transit
742:Southern Division
472:
471:
468:
467:
441:
440:
437:
436:
292:
291:
4244:
4127:Back of the Hill
4059:Newton Highlands
3986:Fairbanks Street
3966:Englewood Avenue
3961:Cleveland Circle
3943:Blandford Street
3856:
3855:
3790:
3789:
3690:Braintree branch
3653:
3652:
3577:
3576:
3542:Roxbury Crossing
3457:
3456:
3377:
3376:
3353:
3346:
3339:
3330:
3329:
3314:
3299:
3298:
3296:
3294:
3279:
3273:
3272:
3270:
3268:
3253:
3247:
3246:
3239:
3233:
3232:
3227:. Archived from
3216:
3210:
3209:
3207:
3205:
3190:
3184:
3183:
3176:
3170:
3169:
3162:"Alerts: Subway"
3158:
3152:
3151:
3144:
3138:
3137:
3131:
3122:
3113:
3112:
3107:. Archived from
3096:
3090:
3089:
3081:
3075:
3074:
3067:
3061:
3060:
3058:
3049:
3043:
3042:
3040:
3038:
3023:
3017:
3016:
3014:
3006:
3000:
2999:
2988:
2982:
2981:
2979:
2977:
2962:
2956:
2955:
2953:
2942:
2934:
2928:
2927:
2925:
2918:
2910:
2904:
2903:
2896:
2890:
2889:
2882:
2876:
2875:
2868:
2862:
2861:
2854:
2848:
2847:
2840:
2834:
2833:
2826:
2820:
2819:
2812:
2806:
2805:
2798:
2792:
2791:
2784:
2778:
2777:
2775:
2773:
2758:
2752:
2751:
2749:
2747:
2732:
2726:
2725:
2713:
2707:
2706:
2701:. Archived from
2690:
2684:
2683:
2682:on July 9, 2015.
2678:. Archived from
2667:
2661:
2660:
2658:
2651:
2640:
2634:
2633:
2632:on July 6, 2014.
2631:
2624:
2616:
2607:
2606:
2599:
2593:
2592:
2585:
2579:
2573:
2571:
2561:
2555:
2554:
2552:
2544:
2538:
2537:
2525:
2519:
2518:
2513:. Archived from
2502:
2496:
2495:
2490:. Archived from
2479:
2473:
2472:
2467:. Archived from
2456:
2450:
2449:
2433:
2427:
2426:
2424:
2415:
2409:
2408:
2396:
2390:
2389:
2377:
2371:
2370:
2358:
2352:
2351:
2350:on July 5, 2016.
2349:
2342:
2334:
2328:
2327:
2320:
2314:
2313:
2305:The Boston Globe
2296:
2290:
2289:
2287:
2285:
2279:Somerville Patch
2270:
2264:
2263:
2261:
2259:
2253:Somerville Patch
2244:
2238:
2237:
2232:. Archived from
2230:Somerville Patch
2221:
2215:
2214:
2207:
2201:
2200:
2188:
2182:
2181:
2180:on July 5, 2016.
2179:
2172:
2164:
2158:
2157:
2156:on July 5, 2016.
2155:
2148:
2140:
2134:
2133:
2132:on July 5, 2016.
2131:
2124:
2116:
2110:
2109:
2108:on July 5, 2016.
2107:
2100:
2092:
2086:
2085:
2084:on July 5, 2016.
2083:
2076:
2068:
2062:
2044:
2043:on July 5, 2016.
2042:
2029:
2021:
2015:
2014:
2013:on July 5, 2016.
2012:
1999:
1991:
1982:
1981:
1979:
1972:
1961:
1955:
1954:
1953:on July 5, 2016.
1952:
1945:
1936:
1930:
1929:
1928:on July 5, 2016.
1927:
1920:
1911:
1905:
1904:
1903:on May 10, 2008.
1899:. Archived from
1896:The Boston Globe
1886:
1880:
1879:
1878:on July 5, 2016.
1877:
1870:
1862:
1856:
1855:
1854:on July 5, 2016.
1853:
1846:
1837:
1831:
1830:
1829:on July 5, 2016.
1828:
1821:
1812:
1806:
1805:
1804:on July 5, 2016.
1803:
1790:
1781:
1775:
1774:
1758:
1752:
1751:
1749:
1738:
1732:
1731:
1728:Federal Register
1719:
1713:
1712:
1710:
1702:
1696:
1695:
1681:
1672:
1666:
1665:
1650:
1644:
1643:
1631:
1625:
1624:
1613:
1607:
1606:
1604:
1597:
1588:
1582:
1581:
1579:
1572:
1563:
1557:
1556:
1545:
1539:
1538:
1527:
1521:
1520:
1519:
1513:
1502:
1496:
1495:
1477:
1471:
1470:
1468:
1466:
1460:
1449:
1440:
1431:
1430:
1421:
1415:
1414:
1403:
1397:
1396:
1387:
1381:
1380:
1369:
1363:
1362:
1351:
1345:
1344:
1333:
1327:
1326:
1315:
1309:
1308:
1297:
1291:
1290:
1289:. George L. Dix.
1282:
1276:
1275:
1267:
1261:
1260:
1249:
1243:
1242:
1233:
1227:
1226:
1215:
1206:
1205:
1193:
1187:
1186:
1175:
1166:
1165:
1147:
1141:
1140:
1133:
1127:
1126:
1107:
1098:
1097:
1095:
1086:
1077:
1076:
1069:
1063:
1062:
1055:
1049:
1048:
1042:
1034:
1028:
1027:
1025:
1015:
1006:
1005:
998:
719:
712:
678:Watertown Branch
655:Lexington Branch
625:Railroad station
612:
608:
455:
454:
400:Watertown Branch
327:
317:
316:
306:
305:
250:
240:
239:
170:
147:
146:
99:
98:
96:
95:
94:
89:
85:
82:
81:
80:
77:
39:
21:
20:
4252:
4251:
4247:
4246:
4245:
4243:
4242:
4241:
4212:
4211:
4210:
4201:
4177:East Somerville
4108:
4084:Brookline Hills
4025:
4006:St. Paul Street
4001:Coolidge Corner
3947:
3918:Packards Corner
3888:Sutherland Road
3854:
3784:
3775:
3722:
3684:
3651:
3571:
3566:
3487:Sullivan Square
3451:
3446:
3371:
3366:
3357:
3308:
3303:
3302:
3292:
3290:
3280:
3276:
3266:
3264:
3254:
3250:
3241:
3240:
3236:
3217:
3213:
3203:
3201:
3191:
3187:
3178:
3177:
3173:
3160:
3159:
3155:
3146:
3145:
3141:
3129:
3123:
3116:
3097:
3093:
3083:
3082:
3078:
3069:
3068:
3064:
3056:
3050:
3046:
3036:
3034:
3024:
3020:
3012:
3008:
3007:
3003:
2990:
2989:
2985:
2975:
2973:
2963:
2959:
2951:
2940:
2936:
2935:
2931:
2923:
2916:
2912:
2911:
2907:
2898:
2897:
2893:
2884:
2883:
2879:
2870:
2869:
2865:
2856:
2855:
2851:
2842:
2841:
2837:
2828:
2827:
2823:
2814:
2813:
2809:
2800:
2799:
2795:
2786:
2785:
2781:
2771:
2769:
2768:. June 25, 2018
2760:
2759:
2755:
2745:
2743:
2742:. July 30, 2021
2734:
2733:
2729:
2714:
2710:
2691:
2687:
2668:
2664:
2656:
2649:
2641:
2637:
2629:
2622:
2618:
2617:
2610:
2601:
2600:
2596:
2587:
2586:
2582:
2569:
2563:
2562:
2558:
2550:
2546:
2545:
2541:
2526:
2522:
2503:
2499:
2480:
2476:
2457:
2453:
2444:. pp. A1,
2434:
2430:
2422:
2416:
2412:
2397:
2393:
2378:
2374:
2359:
2355:
2347:
2340:
2336:
2335:
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2222:
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2209:
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2189:
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2105:
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2081:
2074:
2070:
2069:
2065:
2040:
2027:
2023:
2022:
2018:
2010:
1997:
1993:
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1962:
1958:
1950:
1943:
1937:
1933:
1925:
1918:
1912:
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1875:
1868:
1864:
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1859:
1851:
1844:
1838:
1834:
1826:
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1813:
1809:
1801:
1788:
1782:
1778:
1769:. pp. B1,
1759:
1755:
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1740:
1739:
1735:
1720:
1716:
1708:
1704:
1703:
1699:
1679:
1673:
1669:
1652:
1651:
1647:
1642:on May 5, 2001.
1632:
1628:
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1589:
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1418:
1405:
1404:
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1389:
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1370:
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1348:
1335:
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1194:
1190:
1177:
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1111:Connolly, Mike
1108:
1101:
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1080:
1071:
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1040:
1036:
1035:
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1017:
1016:
1009:
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999:
982:
977:
965:McGrath Highway
933:
897:
852:
799:
754:nearest station
752:or beyond; the
730:
729:
728:
726:
721:
720:
713:
703:
698:
647:Sand Pit Square
643:Prospect Street
627:
622:
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555:island platform
539:
503:island platform
489:located in the
481:station on the
460:
424:
411:
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368:
355:
352:
311:
310:Former services
288:
275:
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130:
119:island platform
92:
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59:
42:
30:
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17:
12:
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4197:Medford/Tufts
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4147:Brigham Circle
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3923:Babcock Street
3920:
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3913:Harvard Avenue
3910:
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3903:Allston Street
3900:
3895:
3890:
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3868:Boston College
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3756:Central Avenue
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3657:Ashmont branch
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3547:Jackson Square
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3407:Orient Heights
3404:
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3306:External links
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1730:. 59 FR 50498.
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1121:) – via
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1007:
979:
978:
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917:gentrification
896:
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832:eminent domain
798:
795:
723:
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707:
706:
705:
704:
702:
699:
697:
694:
689:Fitchburg Line
626:
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575:Porter station
551:Fitchburg Line
538:
537:Station design
535:
507:Fitchburg Line
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133:Fitchburg Line
129:2 (Green Line)
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4187:Magoun Square
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4182:Gilman Square
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4069:Chestnut Hill
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4064:Newton Centre
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3997:
3996:Summit Avenue
3994:
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3989:
3987:
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3976:Tappan Street
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3908:Griggs Street
3906:
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3898:Warren Street
3896:
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3891:
3889:
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3884:
3883:Chiswick Road
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3840:North Station
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3708:Quincy Center
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3670:Fields Corner
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3632:South Station
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2072:"Site Boards"
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3991:Brandon Hall
3928:Amory Street
3873:South Street
3845:Science Park
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3562:Forest Hills
3557:Green Street
3392:Revere Beach
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1531:"Somerville"
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523:
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491:Union Square
474:
473:
366:Heath Street
338:
261:
178:Construction
121:(Green Line)
79:71°5′39.45″W
57:Union Square
27:Union Square
18:
4192:Ball Square
4011:Kent Street
3825:Park Street
3761:Valley Road
3741:Cedar Grove
3622:Park Street
3617:Charles/MGH
3612:Kendall/MIT
3552:Stony Brook
3459:Orange Line
3412:Wood Island
3364:MBTA subway
3204:October 11,
2746:January 26,
2284:January 18,
2258:January 18,
1465:December 5,
1426:Time Tables
746:Lowell Line
649:area. Like
571:Tail tracks
140:Connections
91: /
67:Coordinates
4216:Categories
4172:Prudential
3792:Green Line
3665:Savin Hill
3477:Wellington
3387:Wonderland
975:References
684:Adding an
674:Somerville
499:accessible
487:Green Line
479:light rail
417:Somerville
387:Somerville
346:Green Line
269:Green Line
212:Passengers
191:Accessible
186:120 spaces
4074:Reservoir
4039:Riverside
3971:Dean Road
3835:Haymarket
3815:Arlington
3718:Braintree
3703:Wollaston
3647:JFK/UMass
3517:Chinatown
3502:Haymarket
3467:Oak Grove
3397:Beachmont
3379:Blue Line
1692:0360-859X
744:(now the
701:Alignment
641:in 1846.
589:routes –
422:Fitchburg
286:Riverside
114:Platforms
4167:Symphony
4132:Riverway
4114:E branch
4094:Longwood
4044:Woodland
4031:D branch
3953:C branch
3860:B branch
3850:Lechmere
3820:Boylston
3771:Mattapan
3637:Broadway
3579:Red Line
3527:Back Bay
3482:Assembly
3427:Aquarium
3422:Maverick
3360:Stations
3293:March 2,
3086:Rollsign
2976:April 9,
2576:Volume 2
2045:Figures
953:D Branch
949:E Branch
875:D branch
850:Redesign
734:Lechmere
587:MBTA bus
459:Location
410:Terminus
361:Lechmere
350:E branch
339:Terminus
281:Lechmere
273:D branch
262:Terminus
234:Services
149:MBTA bus
52:Location
3800:Kenmore
3736:Ashmont
3680:Ashmont
3675:Shawmut
3607:Central
3602:Harvard
3587:Alewife
3537:Ruggles
3442:Bowdoin
3417:Airport
3362:of the
3267:July 6,
1123:Twitter
620:History
579:Passage
563:starter
485:(MBTA)
420:toward
392:Waltham
390:toward
364:toward
284:toward
199:History
104:Line(s)
4099:Fenway
3810:Copley
3751:Milton
3746:Butler
3642:Andrew
3597:Porter
2059:3.7-34
2057:, and
2055:3.7-33
2051:3.7-32
2047:3.7-31
1690:
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1158:
816:Porter
611:
607:
497:. The
407:Boston
204:Opened
169:
126:Tracks
4054:Eliot
4049:Waban
3592:Davis
3507:State
3432:State
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748:) to
477:is a
3295:2022
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3262:WBUR
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3199:WBUR
3039:2021
2978:2021
2774:2021
2766:WBUR
2748:2022
2405:WBUR
2386:WBUR
2367:WBUR
2286:2022
2260:2022
1688:ISSN
1486:ISBN
1467:2012
1156:ISBN
919:and
776:, a
516:The
354:2022
329:MBTA
252:MBTA
1658:hdl
836:EPA
614:CT2
609:and
194:Yes
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