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Is that steel work in the first picture essentially forms for the caisson rigs since they are on the river bank's slope?
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 Apparently for the drivers (vibtrators) not the drillers (the last of which was being packed up today). I can hear the vibrator putting the sheet piles from my office - on Clark . |
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Sept 15
Vibrating the sheep pile to drive it in - I can hear this in my office on Clark (4 blocks down the river)  The guide is nailed down by the 2 smaller tubes (in back) which appear to be weleded in place. The 3 openings then have the larger tubes vibrated and pounded in.  Tubes that will be vibrated in, then pounded the last bit ?  the business end of the pounder.  not sure what the caps are for - would fit the big tubes  More pieces - cut up form - I guess they are custom built on each site.      Our friends from Wisconsin.  |
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September 18, 2017
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Sometimes you just need a little room to work ....
I think I have figured out what the poles and frames are all about. CASE put in the permanent foundation work, but now Walsh needs some temporary work space ... so they build their own. Sept 22  Sept 28 Adjusting it ... one end would be lifted slightly and a small crane would tug or push it a bit.   Sept 29 Taking shape  Patching the home-made double beam that has obviously seen use before.  We don't need WD-40 ! The cross members are also re-purposed beams note how they are welded to the double beams that sit on the capstans on the pounded round pipes.  Finally satisfied with the positioning - welding it to the capstan.  Almost done    |
amazing photos harry
and damn interesting massive temporary support structure. Thanks for your continued work |
September 29, 2017
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I'm sorry, what is that they are building with the beams?
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^ Would be nice if they re-used those beams to then build another bridge connecting Wolf Point Plaza with Canal St.
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October 4, 2017
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Wow, Chicago's own temporary boardwalk. Over half a million dollars and a lot of time to build a hundred yards of access road, but I can see now why they need it. The parking pit is going deeper, leaving no space for equipment to get in and out, and the riverbank was too steep without this bridge. Very interesting!
This makes me wonder what kind of crazy gymnastics will be required when its time for the south tower. Surely they will need a barge to access it. |
What a beautiful scene
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interesting. thanks
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