The bridge will feature three towers once complete, with one of the towers already constructed.
To construct the 210m central tower and two 202m-high flanking towers, Liebherr provided three 230m tower cranes, currently the tallest in operation in the UK. The cranes were erected from February 2014 to December 2014, climbing as the towers were constructed.
The project was established after corroded cables on the existing Forth Road Bridge caused concern about the future of the bridge. At 2,637m long, the Queensferry Crossing will be the second-longest three-tower cable-stayed bridge in the world. The towers are 650m apart, with 146m of cable cross-over, designed to stop the central tower swaying.
Over 1,200 people are currently working on site, with the project running under its projected budget of £1.45bn-£1.6bn. The project is overseen by a consortium including Hochtief, American Bridge International, Spanish company Dragados and Scotland’s Morrison Construction.