Bridges

The basic function of a bridge is to get from one side of an obstruction to another – but a bridge can be built simply and cheaply or to make a statement.

Recent iconic bridges in the UK include the Golden Jubilee Footbridges in London and the Flintshire Bridge in North Wales, while the Poole Harbour ‘Twin Sails’ Bridge (currently in detailed design) will open to look like two sails. At the same time, there are standard single-span bridges, including bridges over and under roads and railways. Bridge assessment, repair and maintenance are also key areas of work.

Graduate engineers will work on a small bridge project, or an aspect of a larger one.

Building bridges: graduate engineering employers

Most bridges are commissioned by ‘intelligent client organisations’ such as the Highways Agency or Network Rail, as well as local authorities and private clients. The bridge and its component parts are usually designed by a consultancy. The contractor develops the construction methodology, working out how to build it safely and efficiently. Structural specialists are involved in the superstructure design, while geotechnical engineers advise on the substructure and foundations. Specialist subcontractors and suppliers focus on areas such as bearings or post-tensioning. Graduate engineers can be employed by any of these organisations, although there will be much fewer vacancies with clients.

The changing face of bridges work

We’re developing ways to reduce the build time for road and rail bridges, to reduce delays to the travelling public. It’s becoming common to prefabricate bridges beside the location and then slide them into place to minimise disruption.

On the job: graduate bridge engineers have responsibility

A graduate might be responsible for a small project, under the supervision of a senior engineer. Large projects may require huge teams, and far more co-ordination to enable them to be designed and constructed on time and on budget; a graduate might be assigned responsibility for certain aspects.

Essentials for graduate careers in bridge engineering

• A good degree in civil, structural or related engineering.
• Knowledge of engineering principles.
• Understanding of structures and an eye for architecture.
• Knowledge of environmental issues and health and safety legislation.
• Teamwork skills.

Highs and lows

Highs include being involved from start to finish on a large, technically challenging project and solving buildability problems and design issues. It is disappointing to put effort into a tender or cost plan for a project you don’t win.

Frank Marples, CEng CEnv FICE, is a chief engineer at VINCI Construction UK Ltd. He has a BTech in civil and structural engineering from the University of Bradford, and has 34 years’ experience.