Piece by piece, the whole of Wembley arch will have travelled by road from Darlington to London.
The 7.2m diameter tubular steel structure is made up of 21m long modules weighing up to 100t. Each module comprises three circular diaphragms and the tubular straws of the giant lattice tube.
They are joined together on site in large sheds in the centre of the pitch. 'Once the latest module is completed, these sheds can slide out of the way so that tower cranes can come in and pick up each section and place it on temporary supports ready to be butt-welded to the rest of the arch, ' says Multiplex project manager Dan Scanlon.
Following the main arch lift, a perimeter truss must be lifted around the outside of the stands.
This will be craned into position in 8m and 16m units and welded insitu. Finally, the modular turning struts will be redeployed to support roof elements during assembly.