Please turn the construction over to the Taiwanese. They completed a major subway system underground in Taipei in 3 yrs on a 4 yr plan and under budget. A few ceiling tiles fell on in an 8.2 earthquake.
I have seen it and am amazed at the quality of workmanship involved.
Get rid of the Unions and things would be done in 1/3rd the time and 1/10th the cost.