Old Chicago Spire cofferdam trimming has begun at 400 Lake Shore

A Lindahl Brothers excavator makes off with the first portion of the old Chicago Spire cofferdam..

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’s a breach in the cofferdam.

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.

The orange line marks where the steel will be cut, all the way around.

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:

Sterling Bay breaks ground on newly-permitted 225 North Elizabeth

Early this week, Sterling Bay broke ground on their latest residential project, then began tearing away at the concrete slabs that stand in its way, while also celebrating the caisson permit issued by the city on Tuesday.

225 North Elizabeth, in their own words, will be:

a 28-story mixed-use tower in Fulton Market featuring 350 modern residential units and approximately 10,000 square feet of ground floor retail. The building, which is designed to complement the industrial character of the neighborhood, will set a new standard for urban living in what has been named “the fastest growing submarket in the country”. Featuring residential amenities including two green rooftop spaces to connect tenants to the outdoors, indoor/outdoor fitness and pet suite facilities, as well as shared indoor work-life spaces to meet the growing demand for work-from-home accommodations, 225 N Elizabeth is where form meets function in Fulton Market.

Hartshorne Plunkard Architecture is the design architect. McHugh Construction is the general contractor, with McHugh Concrete doing the concrete work. That’s Lindahl Brothers out there having at the concrete.

Love seeing the height of the West Loop moving further west.

Disappearing this gigantic concrete slab was the first order of business at 225 North Elizabeth.

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