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Ksevio t1_iyesmvl wrote

Reply to comment by Master_Dogs in Finally connecting Red and Blue lines by MDeehan

I think the idea would be the Red line would go above ground where the Minute Man is now. Putting it underground would definitely allow it to go faster and have less weather issues, but would be considerably more expensive

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Master_Dogs t1_iyeuh4f wrote

I'm pretty sure you'd need to tunnel significant portions of it in order to handle (or really remove) at grade crossings. Just in Arlington alone there's a half dozen or so major street crossings. It would likely be done as a cut & cover style tunneling. Expensive? Yeah. But we've spent tens of billions on highways before with significantly less capacity and this would enable us to increase density around a ten mile or so corridor.

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Ksevio t1_iyewah7 wrote

It would definitely have to go under in some cases. I'd picture it sort of like the orange line where it's exposed in sections and pops under for periods

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