The new bridge has 122 deck sections in total. Each section weighs approximately 750 tonnes, and is approximately 40 metres wide by 12 metres in length. Despite their size and weight, the deck has had to be installed 60m above the waters of the Forth within very fine margins and to tiny tolerances.
Completing this phase of work means focus will now shift to completing the huge range of finishing works which have to be accomplished before the bridge can be declared open to traffic. These include laying the road surface, installing the wind and crash barriers, installing the final pairs of stay-cables as well as the full range of mechanical, electrical, and plumbing works such as power supplies, security cameras, fire detection systems and the all-important dehumidification systems which will keep the inside of the steel deck segments free of moisture.
Michael Martin, Project Director for FCBC, said: “This final deck lift is the culmination of a world-class team effort stretching all the way back to the very first day of construction in 2011. The final ‘closure’ is always one of the most significant milestones in any bridge construction programme. On a bridge of this magnificent scale… well, it’s more than a bit special. It is a real pleasure to pay tribute to the skill and dedication of everybody involved and to congratulate them on an outstanding achievement. We are now focused on completing the huge range of finishing works and bringing the Project to a successful conclusion.”
Landmark moment for new Queensferry Crossing
History was made on Friday 3 February as engineers from Forth Crossing Bridge Constructors (FCBC), which Morrison Construction is part of, lifted the very last section of deck on to the Queensferry Crossing, essentially completing the structure of the bridge.