150 N Riverside Site Visit

A few months ago I went on a site visit to see the construction progress of one our firms projects, 150 N Riverside. This project is unique in that the buildings footprint is minimized to respond to the unique site conditions: a train line still running underground to the west of the site, and the river set back on the east. This will be a short blog of pictures I took during the construction site visit.

http://chicago.curbed.com/2016/6/27/12039940/chicago-projects-win-structural-engineering-awards

http://chicago.curbed.com/2016/6/27/12039940/chicago-projects-win-structural-engineering-awards

Only one-third of the site is in fact owned by Riverside Development at ground level, and this is where the tower footprint is located. The western two-thirds of the site meanwhile is being constructed entirely on air-rights above the railroad tracks controlled by Amtrak and Metra, where the concrete deck was laid earlier this year and will support a one level parking garage topped with a publicly accessible green roof. The deck is supported by concrete walls standing on mini-piles, small pipe-like cylinders reaching into the ground forming a narrow foundation slipped between the railroads tracks.
— http://chicago.curbed.com/2015/12/22/10852152/150-n-riverside-dec-update

The image above is taken above showing the structure and visualized completion of this project. The core to height ratio is 1:20, so the core can safely sustain the loads of this building.

Ground view of the tower

Ground view of the tower

temporary structure?

temporary structure?

View from above

View from above

We took a construction elevator to the very top of the building and began our tour from top to bottom.

Construction Elevator door

Construction Elevator door

Raw interiors with basic piping and finishings

Raw interiors with basic piping and finishings

It was a pretty gloomy day so the view wasn't the best on the roof

It was a pretty gloomy day so the view wasn't the best on the roof

Empty floors

Empty floors

Most of the floor plates were empty, there were only a few floors which have begun interior construction.

View from one of the openings

View from one of the openings

Large portions of facades on the south side of the building were still under construction during our visit, so we could peek through the openings and imagine what it would be like to fall down from this height. I also wondered whether those wooden planks offered any structural support to the construction? or where they just there to block things from falling down.

Elevator room

Elevator room

ventialtion chamber?

ventialtion chamber?

View from the angled facade

View from the angled facade

Lobby space under construction

Lobby space under construction

Glass as structure and shading?

Glass as structure and shading?

Undulating facade on the east side of the building facing the river

Undulating facade on the east side of the building facing the river

I personally think the undulating facade could be more bold, because it was a bit too subtle to notice it at first glance.

Reflection looking up from the lobby space- can see the landscape reflected from the angled surface

Reflection looking up from the lobby space- can see the landscape reflected from the angled surface

In conclusion, I really enjoyed touring this building, and experiencing the construction phase of this project even though I was not part of designing this building. I think this is probably the most well known building in Chicago designed by our firm, other than the Blue cross Blue shield building. I don't really know too much of the technical details of this building to be able to share it accurately here, but please feel free to ask me any questions!  Thanks again for stopping by and visiting my blog!

Sincerely,

Ian Liu

04/10/2017 

10:50 PM