@@Subways_io I can’t wait. I’m actually going to the A division December so I can’t wait to see it myself through the front window when the time comes. Thank you for your content🙌
@@dandan1472 Much to see my friend and don’t get me wrong there are tons of interesting spots in the B division IND especially. But I have to say the Lex is particularly interesting especially being built to B division standards as well. Don’t get out on the road as much as I’d like to but always a treat when possible. Much more to come thanks for watching be safe out on the road. 🫡🦺
Before we had these subway videos, I remember as a kid walking on the Walton Ave bridge which is the next bridge west of the Grand Concourse and wondered why was this bridge so big under the Grand Concourse. Those engineers were something.
Unlike a free-standing structure, the LIRR East New York tunnel is a full four-track arch tunnel. Each arch supports the weight above, designed for both strength and ventilation. So no cut on this section. This setup eliminated the need for the IND to build a spanning structure, as the LIRR crosses directly beneath East New York Station. Aside from the slight grade adjustment as trains enter the station N/B to clear the LIRR, the tunnel structure remains mostly unremarkable, with no visible shifts or girders like those seen along the Concourse line. It’s essentially a standard crossing. One area we didn’t mention but could add possibly is the Chrystie Street connector, with its provisional crossing for the Lower Manhattan Expressway. Story for another video! Back to the LIRR for a moment. The tunnel’s setup presents a major challenge for the IBX, especially when it comes to constructing a station in that area. Additionally, substantial complexes are being built directly above the right-of-way (ROW) without much need for underpinnings or structural spans fairly strong arched structure.
I grew up at 103rd street and Lexington so this will be fascinating
Our next video video covers your neck of the woods. We're going to cover why the line is configured the way it is. 102-114th Streets stay tuned!
@@Subways_io I can’t wait. I’m actually going to the A division December so I can’t wait to see it myself through the front window when the time comes. Thank you for your content🙌
@@dandan1472 Much to see my friend and don’t get me wrong there are tons of interesting spots in the B division IND especially. But I have to say the Lex is particularly interesting especially being built to B division standards as well. Don’t get out on the road as much as I’d like to but always a treat when possible. Much more to come thanks for watching be safe out on the road. 🫡🦺
Before we had these subway videos, I remember as a kid walking on the Walton Ave bridge which is the next bridge west of the Grand Concourse and wondered why was this bridge so big under the Grand Concourse. Those engineers were something.
Indeed they most definitely were!
Fascinating information, thanks very much.
Glad you enjoyed it!
Wow, that is a lot to process.
Let's us know if you have any direct questions.
One underground bridge was clearly omitted: the Fulton Street subway, encased in concrete, crosses the LIRR Bay Ridge branch, which is in an open cut.
Unlike a free-standing structure, the LIRR East New York tunnel is a full four-track arch tunnel. Each arch supports the weight above, designed for both strength and ventilation. So no cut on this section. This setup eliminated the need for the IND to build a spanning structure, as the LIRR crosses directly beneath East New York Station. Aside from the slight grade adjustment as trains enter the station N/B to clear the LIRR, the tunnel structure remains mostly unremarkable, with no visible shifts or girders like those seen along the Concourse line. It’s essentially a standard crossing. One area we didn’t mention but could add possibly is the Chrystie Street connector, with its provisional crossing for the Lower Manhattan Expressway. Story for another video! Back to the LIRR for a moment. The tunnel’s setup presents a major challenge for the IBX, especially when it comes to constructing a station in that area. Additionally, substantial complexes are being built directly above the right-of-way (ROW) without much need for underpinnings or structural spans fairly strong arched structure.
Great info thanks.
Glad it was helpful!
The “underground” bridges confused me as a kid
The case for most of us which made them more intriguing!🤔 👍
This is so cool, really appreciate the content
Thanks so much. More to come!
Great video and tutorial!
Thanks so much!