Over 100 workers working in shifts 24 hours a day made this possible, despite the site being perceived as a major risk before the project.
That's why the men worked in shifts and never took their eyes off them, not even for a second.
Three groups of 250 men had been working in shifts day and night.
Because we work in different shifts, it's tough for myself to get hold of everybody.
A team of more than 30 surgeons worked in shifts.
We were to work in shifts, two people at a time.
Keep the guards, the men working in teams and shifts.
These employees worked in shifts, 7 days a week for almost 18 months.
It took two and a half weeks to build working in shifts from 4 to 12 hours each day.
There were a lot of them and they worked in shifts.
