The works for the construction of Line 16 (Lot 2) of the Grand Paris Express , started in January 2019, are added to a first contract won by Webuild in joint venture with NGE for the extension of line 14 of the Grand Paris Express to Orly Airport. With this second project, Webuild's contribution to the Grand Paris Express, the largest sustainable mobility initiative in Europe, is strengthened. The line 16, when completed, will serve numerous municipalities in the areas north and east of the greater Grand Paris metropolitan area.

The planned works included the excavation of 11.1 km of tunnels with 2 TBMs and the construction of four stations (Aulnay, Sevran-Beaudottes, Sevran-Livry and Clichy-Montfermeil), as well as 11 auxiliary works. 

At least 20% of the total value of the contract was assigned to local subcontractors and, in addition to the training that have been provided to local workers and managers, particular attention have been paid to the issue of the inclusion of disadvantaged categories, for a minimum of 5% of the total of hours worked for the lot.