Re "Digging a six-and-a-half-story hole at the mouth of the Chicago River to make way for an underground garage and loading dock. Experts say that would be the deepest lakefront building excavation in the city."
Doesn't Chicago have enough experience with flooded basements alongside the Chicago River?!?
I like the part about pending City approval. To me the building looks out of place with the rest of the sky line. If I was on the approval commitee I would ask for a redesign more in keeping with the character of the City.
When the John Hancock Center or the Sears towers were built, they did not resemble the character of the city. But Still, I am dubious about this types of buildings projects. I think there's glory for Engineers and Architects doing much smaller and simpler buildings. And the nicest part is that it is only them who really know about it.
A technical 2 cents, on the other side, is that, speaking of perimeter steel columns, the dark building that you see on the right side of the tower in question, has had problems with settlement.
Is this on the same site as the 1,360 ft. Trump International Hotel & Tower proposed in 2005?
This story gives depth to the limestone bedrock as 110 feet. The earlier design involved drilling keyholes into bedrock & then filling 10 ft.-diameter shafts 80 feet long with 10,000 psi concrete to support a 10 ft thick concrete mat foundation 35 feet subgrade.
