Chicago Trump Tower update
A few weeks ago trucks drove from the largest privately owned ready-mix company in the U.S
(just a couple of miles from my home) to the site of the Trump Tower
for nearly 24 hours carrying 5,000 cubic yards of concrete to the construction site and dumping it into a single hole called the 'mat.' This steel-reinforced opening that measures 200 feet long, 66 feet wide and 10 feet deep will be a below-ground level anchor for the 92-story building and on that will sit the core walls of the worlds tallest tower to be built post 9/11.
The Trump Tower has a $600 million construction budget, and the concrete-only portion will be an estimated $130 million of that total. The building is expected to require 180,000 cubic yards of concrete when it is completed.
Unlike the Sears Tower
, Aon Center
and Hancock Building
, which are all steel-reinforced, the Trump Tower is using concrete because there is less room available on the site for the foundation. Therefore the Chicago Trump Tower, when finished in 2009 will be the world's tallest concrete-reinforced building. That record is currently held by the CITIC Plaza
in Guangzhou, China, which is 80 floors.