The project team is constructing a new tunnel beneath central London, building nine train stations, rebuilding or overhauling other stations, and upgrading existing track.
Better train lines for London commuters
These efforts will reduce transport headaches for hundreds of thousands of commuters who live in suburbs east and west of London.
The UK's Network Rail selected a Bechtel-led team as its project delivery partner to manage engineering and construction programs to relieve riders of multiple train changes and excessive delays as they travel to and from the city center.
The programs, which also benefit freight carriers, incorporate leading sustainability practices.