Comments on: Photos: Installation of Mom Chung, our first tunnel boring machine

By: Central Subway To the Wharf!

Central Subway To the Wharf! — Mon, 27 May 2013 07:08:00 +0000

*applause*

By: Central Subway

Central Subway — Thu, 16 May 2013 22:29:00 +0000

Hi Irving,

We are building two tunnels. When the Central Subway opens, one tunnel will be used for northbound trains and the other for southbound trains.

To construct the tunnels, we are starting in the south and heading north. The direction in which we construct the tunnels has no relation to the direction T Third Line trains will travel through them in the future.

Hope this helps.

By: Irving Waldorf

Irving Waldorf — Wed, 15 May 2013 15:35:00 +0000

If you are putting one or more TBMs in the insertion pit south of Market Street, then boring from there will be in the northbound direction, not southbound. No wonder Muni is so messed up. It doesn’t even know which way is north or south. Someone please buy them a compass.

By: Andareed

Andareed — Wed, 01 May 2013 03:57:00 +0000

Seems everyone’s getting a Twitter account these days, even tunnel boring machines.