Unless there’s new technology allowing caisson to be dug without rigs, caissons look finished at One South Halsted.

A look after dark down on the One South Halsted site Monday night shows only one caisson rig remaining on site, and a horizontal one at that. The only logical conclusion one could make from this is that caissons are done.

As you may have guessed, I’m willing to skip straight to the tower crane portion of our program, but we’ll have to let Lendlease make that decision. For now, Case Foundation still has some equipment to remove from the lot, like augers and that big yellow rig lying on the ground. Then crews can get busy on the next phase of foundation work.