Install trains under supported concourse carrying 100,000 people and control tower.
The Phoenix Project.
Estimated time for rebuilding of the Pentagon after 9-11 attack was 4 years.
Work was completed in 11 months.
Tying in 3 projects as an afterthought, after the fact
dome over operating roadways.
In the early 1960s, KCE was the 1st to use the slurry wall in the U.S.