Just a little off the top, please.

It should surprise no one that there’s a lot going on at the 400 Lake Shore construction site. Tuesday, they were bringing in parts for the crane that will assemble the tower crane (alas, no tower crane parts or segments had arrived while I was there.) But I did get to see something maybe even cooler than that, and you know how much I like the tower cranes.

There was some concrete demolition on the inside of the old Chicago Spire cofferdam, which has been partially excavated on the north side. There was torch cutting of said cofferdam. Ultimately, a section of the cofferdam one concrete “ring” deep fell outward and was hauled off by the excavator you see in the video above. I’m told that entire top ring of the cofferdam will be removed.

I checked for that cofferdam section on eBay, but haven’t seen it pop up yet. I want it in my office,

On to a few more pics of Tuesday morning’s events and goings-on: