- Edinburgh, City of Edinburgh
The University of Edinburgh is one of the world’s top 20 institutions of higher education.....
- Recruiter: The University of Edinburgh
- Bristol, England / Cumbria, Barrow-In-Furness, England
Principal Electrical Engineer - Power Join our Electrical Power team and help design the self-contained generation and distribution system for the Successor submarine - a new generation of submarine designed to carry the UK's independent nuclear deterrent
- Recruiter: BAE Systems
- England, Cambridgeshire
- £33000 - £39000 per annum
Operations Supervisor - (Mechanical/Electrical/Instrumentation) Salary: Circa £33k - 39k dependant on experience + vehicle and great additional benefits (share scheme, pension, potential bonus).Location: Wisbech - Cambridgeshire We currently have an excit
- Recruiter: National Grid
- England, Lancashire
- Competitive package
Would you like to be involved with training UK and international teams in Non Destructive Inspection (NDI) to support the in service fleet (Typhoon Tornado, and Hawk)?
- Recruiter: BAE Systems
- Competitive Salary & Benefits
What?s the opportunity? There are fantastic opportunities in Systems Design for engineers to work within Future Systems. These are highly visible, fast paced roles, in...
- Recruiter: MBDA
- Teddington, United Kingdom
- £24,109 - £27,961 plus EO Electronics PE of £8,090.00
We are now looking for a Metering Engineer to deliver RD’s In-Service Testing (IST) scheme for gas and electricity meters.
- Recruiter: Department for Business, Innovation and Skills
- Shrewsbury, Shropshire
- £46,625 to £57,640 per annum
As an experienced Estates Manager, you will play a key role in helping to shape the future of the Estates service.
- Recruiter: The Shrewsbury and Telford Hospital NHS Trust
- York, North Yorkshire
- c£45,000 + Car Allowance + Bonus + Excellent Benefits
Nestlé Product Technology Centre in York currently has an excellent opportunity for an Engineering Project Manager
- Recruiter: Nestle
- Zurich, Canton of Zürich (CH)
The successful candidate is expected to develop a strong and visible research programme in the area of control and diagnostics of building systems
- Recruiter: ETH Zurich
- Humber Refinery, South Killingholme, North Lincolnshire DN40 3DW
- £60k - 75k plus extensive Compensation and benefits package, dependent upon experience
Experienced Process Control Leader providing leadership and technical support for Oil Refinery. Extensive Compensation and benefits package.
- Recruiter: Phillips 66
Classic Projects: the Severn Bridge
The story behind the Severn Bridge
The original suspension bridge road crossing linking England and Wales at the Severn Estuary helped economic and industrial development. But the designers seriously under-estimated the growth in traffic volumes...
In keeping with its strategic and economic importance, over the centuries the River Severn has been bridged more than 100 times. Perhaps with the exception of the Iron Bridge at Ironbridge Gorge, none is as iconic as the original motorway suspension toll bridge constructed in the 1960s.
Connecting Aust, Gloucestershire, with Chepstow, Monmouthshire, the Severn Bridge was designed to replace a ferry service that was struggling with road-vehicle traffic-flow after the Second World War. But there was a more pressing economic reason behind servicing the increasing traffic flow into Wales. The decline of the South Wales extraction industries meant that the region desperately needed inward investment. To attract new technologies there needed to be quick and reliable road links with the rest of the UK.
The idea of bridging the Severn at this geographical location had been around since the early 1800s in order to improve mail connections. This need was eventually satisfied by the construction of the Severn Tunnel rail line in 1886. Proposals for a road crossing were then met with stiff opposition from the Great Western Rail Company, which operated the line.
After the Second World War there were ambitious plans to expand Britain's trunk-road network. However, development of the Severn Bridge was postponed to allow work to go ahead on the Forth Road Bridge, with the result that the Severn Bridge project was not properly started until 1961.
Over the course of planning and construction there have been many contractors associated with the project, but broadly speaking the Severn Bridge was designed by Freeman, Fox and Partners, with the substructure construction by John Howard & Co, while the superstructure contractors were Associated Bridge Builders. The term 'bridge' is misleading, as the crossing comprises four separate units. From east to west:
* Aust Viaduct which connects to the first gravity span of the bridge itself;
* Severn Bridge: a conventional suspension bridge spanning the Severn Estuary with deck supported by two cables between two steel towers;
* Beachley Viaduct that crosses a small peninsular of the same name;
* Wye Bridge: a cable-stayed bridge that crosses the border between England and Wales.
When Queen Elizabeth opened the bridge in 1966 the toll for a single car crossing was 2s 6d. Taking into account inflation, this works out at a shade over £2 today, but due to currency depreciation the same journey in 2013 will cost £6. The collection of tolls is a bit of a political hot potato, as only vehicles entering Wales are required to pay. Those exiting have a free run into England. The practical reason for this is to avoid motorists having to queue on the bridge itself in times of heavy use. But campaigners see this as discriminatory, and have accused the government of levying a tax on entering Wales.
With traffic peaking at 50,000 vehicles per day on the original bridge, the requirement for a second crossing was identified. On completion in 1996, the Second Severn Crossing carried a new stretch of M4 into Wales, while the section of the motorway serviced by the original bridge was renamed the M48. The Severn Bridge today carries only 25 per cent of traffic crossing the estuary.
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