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The depth of the tunnel varies based on street considerations and other geography. At
Arlington, Hynes Convention Center, and Kenmore, the tunnel is substantially below street level, and the stations have below-ground fare mezzanines offering access to both platforms; at Copley, the tunnel is
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shallower, and the fare gates are at platform level, with a free crossover to reverse direction not possible. The deepest section of the tunnel is under the Muddy River, in the
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branches off to the south just to the west of Copley. The main line continues west under
Boylston Street; at Hereford Street, it curves northward into
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62:. The tunnel originally ended just east of Kenmore Square; it was extended under the square to new portals at
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Twentieth Annual Report of the Boston
Transit Commission, for the Year Ending June 30, 1914
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154:– archeological site discovered while excavating the Boylston Street subway
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205:. Boston Transit Commission. 1914. Plate 4 – via Internet Archive.
43:. In operation since 1914, it now carries all four branches of the
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into downtown Boston, where it joins with the older
177:Tremont Street Subway: A Century of Public Service
94:. It then runs westward under Boylston Street;
16:Light rail tunnel in Boston, Massachusetts, US
86:near the intersection of Boylston Street and
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241:Template:Attached KML/Boylston Street Subway
175:Clarke, Bradley H.; Cummings, O.R. (1997).
23:Interior view of Beacon Street subway, 1932
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78:The eastern end of the tunnel is at the
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179:. Boston Street Railway Association.
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98:is located at Arlington Street, and
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102:is at Dartmouth Street in
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255:Boylston Street Subway
29:Boylston Street subway
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257:at Wikimedia Commons
80:Tremont Street subway
60:Tremont Street subway
41:Boston, Massachusetts
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116:Massachusetts Avenue
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146:See also
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56:Back Bay
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106:. The
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