Timeline for A Chicago Right Beneath Our Feet
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
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| Sep 24, 2015 at 14:21 | comment | added | Tim B | Yeah, they used "cut and cover" for a lot of the early tubes. Basically they dug a long trench, ran the rail lines along the trench and then covered over the top of the trench with a bridge-like structure. | |
| Sep 24, 2015 at 12:50 | comment | added | Steve Bird | The bulk of the London Underground ("tube") network, including all of the deep tunnels, was constructed in the 20th century. The earliest parts were essentially shallow tunnels (with large parts running in open culverts) so it probably isn't a good example of being able to live underground. | |
| Sep 24, 2015 at 11:15 | history | answered | jawo | CC BY-SA 3.0 |