The hottest new tower in Chicago has had the caisson drilling permits issued, meaning that we are about to see the reality of what has been the most buzz-worthy development in the Chicago skyline since, honestly, the Trump Tower.
Caissons are watertight retaining structures used, to work on the foundations, and constructed so that the water can be pumped out, keeping the working environment dry. When piers are to be built using an open caisson and it is not practical to reach suitable soil, friction pilings may be driven to form a suitable sub-foundation. These piles are connected by a foundation pad upon which the column pier is erected.
Which makes sense with the riverfront location. As the tower rises, we expect that there will be a lot of interest in the remaining units (remember, it has already sold some $200 million in condos, without any work done). Construction is slated to be done in 2020.
If you are looking to get in on the hottest new address in decades, drop me a line, and I will take care of the rest!