Found this cool link to give more info on the base columns they are installing.
Courtesy of Brandow & Johnson Inc.
http://bjsce.com/wilshire-grand-rede...mber-27th-2013
Exciting developments in the construction of the Wilshire Grand Project : The Tallest Building West of the Mississippi
The Box Columns or Starter Columns as they are also referred to, are en route to the job site from Schuff Steel in San Diego. They will begin to place each column in the footprint of the foundation starting this Monday December 2nd, 2013. Each of the Box Columns weigh 42,000 lbs; they are approximately 18 feet long/high and weigh an average of 2,333 lbs. per square foot. Very cool!