On: Elon Musk is boring a tunnel to skirt gridlock

[Ericson2314]

DC's certainly seems bored—and some are extremely deep and therefore must be. Stations might be cut and cover but are arched to match.

[niftich → Ericson2314]

The Washington Post has a good graphic [1] on which stations were cut-and-cover and which stations were bored.

You will find that most stations were actually cut-and-cover, with only the Red Line having bored segments: one starting from after Farragut North [2] and running until shortly after the Medical Center [3], and another starting as soon as it leaves the CSX Metropolitan Sub northwest of Silver Spring and continues until the terminus at Glenmont, although that station itself was built from the surface [4].

Also highly recommend the book 'The Great Society Subway: A History of the Washington Metro' [5]

[1] https://www.washingtonpost.com/graphics/local/wmata-metro-de... [2] http://www.johnreilly.us/washington-metro-transit-design-and... [3] http://www.roadstothefuture.com/Metro_Glenmont_Route.html [4] http://www.nycsubway.org/wiki/Washington,_D.C. [5] https://books.google.com/books?id=beDoAwAAQBAJ

[Ericson2314 → niftich]

That makes sense. DuPont and Rosslyn are insanely deep; the rest of the orange line, not so much. Thanks for the info!