Caissons — BIG caissons — continue at 354 North Union

Stalworth Underground and Onni Group are still on caisson duty at 354 North Union. They even brought in more equipment this week, so while most of the caissons have been drilled and filled, there’s still work left to be done.

Enjoying the photos? Metra and CTA rides, Zipcars, Divvy Bikes, camera lenses, and comfortable walking shoes are adding up. You can help offset expenses by making a greatly-appreciated donation to Building Up Chicago.

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