Queensferry Crossing

Structural Designer

Jacobs Arup Joint Venture

Client Name

Transport Scotland

Location

Edinburgh and Fife, United Kingdom

PRINCIPAL CONTRACTOR
FCBC, comprising Hochtief, Dragados, American Bridge International and Morrison Construction

KEY CONTRIBUTING CONTRACTOR
American Bridge

KEY CONTRIBUTING CONTRACTOR
Dragados

KEY CONTRIBUTING CONTRACTOR
Hochtief

KEY CONTRIBUTING CONTRACTOR
Morrison Construction

KEY CONTRIBUTING CONTRACTOR
Forth Crossing Design JV (Ramboll, Leonhardt Andrä und Partner, Sweco) Images: © Transport Scotland & Arup

PROJECT DESCRIPTION

The Queensferry Crossing is the centrepiece for the Forth Replacement Crossing Project, Scotland’s largest infrastructure project for a generation. The new bridge was delivered at a cost 65% below the original budget. It is delivering extensive benefits to users and communities, whilst safeguarding vital transport connections.

Judge's comment:

This is an extraordinary bridge by almost any measure. The scale of the structure is in itself impressive, but what sets it apart from other major long span bridges in the opinion of the judges, is the unique way in which the engineers have dealt with the particular problem of unbalanced loads on a three-tower cable stayed bridge. The crossing stays at the centre of the two main spans is a unique feature of this design, and by this simple expedient the designers have managed to maximise the slenderness of the elements and achieve substantial savings in the costs of the foundations and the superstructure.

The judges were impressed by the elegance of the solution, which manages to achieve a degree of slenderness and lightness in spite of its huge scale. In addition, the selection of such an innovative cable stayed solution to stand alongside its historic neighbours to form a spectacular trio of iconic bridges across the Forth Estuary, each representing engineering characteristics typical of its time, is considered particularly noteworthy.

Many organisations have been involved in the conception, evolution, development and delivery of this complex project, and the judges considered it a good showcase for what is involved in the planning, design and construction of such a major long span bridge.