CHICAGO | BMO Tower | 727 FT | 50 FLOORS - Page 44

Ned.B · #**861** Posted **Feb 26, 2020, 2:53 PM**

Based upon the basement drawings, I do not believe that the trench is part of the permanent building construction. There is only one concrete basement wall and only one layer of sheet pile walls shown.

The pedway is an open walkway passing through the parking garage similar to the Millennium and Grant Park South garages from the point where it enters the site mid-block on the Canal side to where it exits to street at the corner of Van Buren and Clinton.

ardecila · #**862** Posted **Feb 26, 2020, 7:43 PM**

^ Which sucks! This is a once-in-a-generation opportunity to create a link to the Blue Line (or half of a link) and have a developer pay for it.

But yeah, it does look like this is a temporary construction. Maybe there are some utilities under the site that need relocated around the perimeter.

bhawk66 · #**863** Posted **Feb 27, 2020, 1:09 AM**

Quote:

Originally Posted by ardecila

^ Which sucks! This is a once-in-a-generation opportunity to create a link to the Blue Line (or half of a link) and have a developer pay for it.

But yeah, it does look like this is a temporary construction. Maybe there are some utilities under the site that need relocated around the perimeter.

Excellent mindset, adecila. A missed opportunity.

SolarWind · #**864** Posted **Feb 29, 2020, 9:06 PM**

February 28, 2020

rivernorthlurker · #**865** Posted **Feb 29, 2020, 9:11 PM**

Quote:

Originally Posted by SolarWind

February 28, 2020

A win is a win!

Zapatan · #**866** Posted **Mar 1, 2020, 12:03 AM**

3 feet? Seriously? That's not even one meter.

harryc · #**867** Posted **Mar 8, 2020, 10:39 PM**

March 5

Positioning the Tremie pipe - used in deep shafts to prevent the concrete from mixing with the slurry on the way down. The concrete is heavier so it displaces the slurry up the caisson from the bottom.

KWillChicago · #**868** Posted **Mar 8, 2020, 11:21 PM**

Are we looking at early april to start going upward?

KWillChicago · #**869** Posted **Mar 8, 2020, 11:22 PM**

What is that SE corner ramp going to? Any chance connector for the pedway?

tjp · #**870** Posted **Mar 9, 2020, 1:01 PM**

I really hope there's some sort of connection to the blue line, which in effect would connect Union Station to the CTA.

ardecila · #**871** Posted **Mar 9, 2020, 1:12 PM**

^ this was discussed on previous pages.

builder8 · #**872** Posted **Mar 10, 2020, 6:52 PM**

I noticed there is an I bean laid across the caisson today. Are they trying to pull out one of the caisson sleeve now?

harryc · #**873** Posted **Mar 10, 2020, 8:01 PM**

Quote:

Originally Posted by builder8

I noticed there is an I bean laid across the caisson today. Are they trying to pull out one of the caisson sleeve now?

With a big blue frame ? and the mother of all block and tackle ? that is the pulling frame which was on site last week.

Otherwise they use some pretty hefty beams to hold the rebar cage in place during the pour.

SolarWind · #**874** Posted **Mar 17, 2020, 1:34 AM**

March 11, 2020

Skyguy_7 · #**875** Posted **Mar 17, 2020, 11:54 AM**

^Great set, Solar. Thank you for getting out there and risking it all for SSP!

Looks like the caisson work is done.

harryc · #**876** Posted **Mar 20, 2020, 2:23 AM**

March 13

Chicago | BMO Tower by Harry Carmichael, on Flickr

KWillChicago · #**877** Posted **Mar 20, 2020, 11:23 PM**

Looking at webcam. What is all the gravel for that just got dumped off for?

harryc · #**878** Posted **Mar 30, 2020, 3:25 AM**

March 23

Chicago | BMOTower by Harry Carmichael, on Flickr

Chicago | BMOTower by Harry Carmichael, on Flickr

Starting the pit - the corrugated tube is the sump.

Chicago | BMOTower by Harry Carmichael, on Flickr

The west edge of the pit.

Chicago | BMOTower by Harry Carmichael, on Flickr

SteelMonkey · #**879** Posted **Apr 16, 2020, 4:12 PM**

Is this project abnormally slow for some reason Im unaware of? The comparable tower on Wacker started drilling on May 30th and pouring the mat on Aug 17th 2018. They started drilling here on Dec 28th and arent that close on April 15th.

Seems more like an archaeological dig than tower construction.

harryc · #**880** Posted **Apr 16, 2020, 4:20 PM**

Quote:

Originally Posted by SteelMonkey

Is this project abnormally slow for some reason Im unaware of? The comparable tower on Wacker started drilling on May 30th and pouring the mat on Aug 17th 2019. They started drilling here on Dec 28th and arent that close on April 15th.

Seems more like an archaeological dig than tower construction.

From looking at the work - it is the archelogical aspect ;-) That 12'+ trench around the South and East perimeter is criss-crossed by more than one utility run, the nasty liquid filled ones - most likely in vintage cast iron.

Last I checked they were making good progress on excavating out the area for the mat, note 110 N Wacker did little to no excavation.