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Development Projects New urban and/or architectural developments in Boston metro.

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Old 09-15-2017, 05:49 PM   #81
ceo
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Re: MXD | 145 Broadway/250 Binney | Kendall Square

They might be just replacing that clamshell digger, because they still have a few more weeks worth of digging to do.
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Old 09-15-2017, 05:58 PM   #82
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Re: MXD | 145 Broadway/250 Binney | Kendall Square

I went to a presentation they did this morning for employees. The clamshell is used to dig down to bedrock, about 100 feet down, and then they bring in the big grinder thing (actually called a hydromill) to go down 2 feet into bedrock. They circulate the slurry throughout this process and separate the ground-up rock etc out of it with the big gray machine in the back corner of the site. The rebar cages go down about 20' below the bottom of the parking garage and it's just concrete below that The interior pilings are done similarly except there's a huge I-beam inside them.
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Old 09-20-2017, 10:24 AM   #83
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Re: MXD | 145 Broadway/250 Binney | Kendall Square

Thatís basically the technique that was used for all the Big Dig walls. It was fun to watch that process as a kid.
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Old 09-20-2017, 02:11 PM   #84
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Re: MXD | 145 Broadway/250 Binney | Kendall Square

i've always wondered where they bring the fill.

does it go into a crusher some place for someone's town sand?

or for asphalt? or to Sand and Gravel? or get used when they re-do a dIke?

Last edited by odurandina; 09-20-2017 at 06:01 PM.
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Old 09-20-2017, 05:56 PM   #85
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Re: MXD | 145 Broadway/250 Binney | Kendall Square

All of the above basically.
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Old 10-06-2017, 11:30 PM   #86
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Re: MXD | 145 Broadway/250 Binney | Kendall Square



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Old 11-18-2017, 01:03 AM   #87
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Re: MXD | 145 Broadway/250 Binney | Kendall Square

Slurry wall work has been completed. They are starting to dig out the basement.



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Old 11-29-2017, 05:33 PM   #88
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Re: MXD | 145 Broadway/250 Binney | Kendall Square

It looks like there is now a webcam for this. Hooray!!!!! (note the casino is also visible!)

https://app.oxblue.com/open/bostonpr...es/145broadway
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Old 12-03-2017, 10:38 PM   #89
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Re: MXD | 145 Broadway/250 Binney | Kendall Square

Going down.



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Old 12-04-2017, 01:16 AM   #90
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Re: MXD | 145 Broadway/250 Binney | Kendall Square

Thanks Beeline!!
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Old 12-20-2017, 12:45 PM   #91
DZH22
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Re: MXD | 145 Broadway/250 Binney | Kendall Square

The webcam shot shows they are now pouring a concrete mat! They must be bottoming out and ready to start going vertical!

https://app.oxblue.com/open/bostonpr...es/145broadway
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Old 12-24-2017, 09:06 AM   #92
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Old 01-14-2018, 07:30 PM   #93
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