Crazy Transit Pitches

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Not sure if either of these are it.
 
The Summer Street Concourse goes as far east as halfway between Otis and Devonshire; this hatch is at the far end.

Charlie_mta said:
I vaguely recall years ago on here, F-Line or someone saying that BERY originally intended to run a trolley car line in that tunnel you describe that runs above the RL from Washington St to Dewey Square. Of course the SB Central Artery tunnel cuts it off, making use of it for a rapid transit line impossible.
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This is one of those rumors that just won't go away. It was never intended for streetcars, nor is it anywhere near tall enough. The existence of the concourse is simply a result of the cut-and-cover construction method. At first the BTC wasn't sure whether to fill the portion under Winter in or have it be for pedestrians (see 1912 report), but the latter was chosen. Per the 1914 report, the portion under Summer was always intended as the station mezzanine.

The reason the concourse ends east of Otis is because of the tunneling method. The tunnel starts going deeper there to go under sewers and eventually Fort Point Channel, so it switched from cut-and-cover to mined tunnel with an arched roof.

RandomWalk said:
I recall a construction photo of the Dewey Square tunnel which show the severed trolley tunnel.
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You're probably thinking of the arched Red Line roof being shaved. Pictures here:
 
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The EGE said:
The Summer Street Concourse goes as far east as halfway between Otis and Devonshire; this hatch is at the far end.


This is one of those rumors that just won't go away. It was never intended for streetcars, nor is it anywhere near tall enough. The existence of the concourse is simply a result of the cut-and-cover construction method. At first the BTC wasn't sure whether to fill the portion under Winter in or have it be for pedestrians (see 1912 report), but the latter was chosen. Per the 1914 report, the portion under Summer was always intended as the station mezzanine.

The reason the concourse ends east of Otis is because of the tunneling method. The tunnel starts going deeper there to go under sewers and eventually Fort Point Channel, so it switched from cut-and-cover to mined tunnel with an arched roof.


You're probably thinking of the arched Red Line roof being shaved. Pictures here:
Click to expand...
Sounds good, and thanks for the info. Sorry, F-Line, I didn't mean to misquote you.
 
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