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Contractors World UK & Ireland
2011 Volume 1 Issue 8
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BREAKING NEWS

 • GT Access Takes UKs First 15 m Hinowa Booms


 • Snorkel UK Appoints PLP Lift Trucks As Regional Dealer
 • A-Plant to Merge Lion Trackhire and Eve under New Name
 • Lendlease have renewed their framework agreement with Human Recognition Systems.
 • RPS Appointed for GWR Exeter Depot Expansion
 • CASE appoints new heavy-line specialist

 

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Painting of the Forth Bridge completed - page 3 of 3 >>>

Forth Bridge facts

Opened: 1890

Length: 2,467 metres

Main structure (portal to portal): 1,630 metres

Height of Bridge: (High water to top) 110 metres

Foundation to top: 137 metres

Weight of steel in bridge: 53,000 tonnes

Number of rivets: 6.5 million

Concrete and masonry in piers: 120,000 yd³ faced with 2 ft thick granite


Painting the bridge

Area: 230,000 m²

Volume used: 240,000 l

Lighting the bridge

Total number installed: 1,040 lights

Length of cabling required: 35,000 – 40,000 m

 

The paint used to coat the bridge is a specialist glass flake epoxy paint, similar to that used in the offshore oil industry and designed to last 25 years.

The paint used to coat the bridge is a specialist glass flake epoxy paint, similar to that used in the offshore oil industry and designed to last 25 years.

It is, however, expected to last much longer. W.J.Leigh of Bolton supplied the specialist paint and coating systems.

The project also involved repair and replacement of walkways including the installation of new walkways and catwalks to allow for access to the works and to assist in the future examination and maintenance of the bridge.

During the works some steel replacement of small localised sections of steel where required. The bridge’s architectural lighting system was refurbished

All photos: Network Rail 2011

For More information >>>         Network Rail
  W J Leigh
       Balfour Beatty

 

 


Halcrow maps out UK surface water flooding risks

Business and home owners will be able to quickly assess the risk posed to their properties by coastal erosion thanks to a new interactive map developed by Halcrow on behalf of the Environment Agency.

The National Coastal Erosion Map is a new feature on the EA’s ‘What’s in Your Backyard’ website. Visitors can zoom in on their local area to view the erosion risk over the next 20 years and the proposed EA response ranging from ‘hold the line’ strategies to managed realignment.

The maps are people focused, rather than technical, and reflect the potential impact on communities. They incorporate climate change data and key information about river flood risk and water quality. Information about erosion strategies, including the design of defences, can also be viewed.

Two pilot maps, for Northumberland/North Tyneside and the South Downs, were launched on November 17. Following feedback from users, the wider maps will be rolled out in the New Year.

The maps are the fruit of a project which Halcrow began in April 2006 for the Environment Agency, who are working on behalf of the Department for Environment, Food and Rural Affairs (Defra) and the Welsh Assembly.

Throughout the project, the company worked closely with over 100 maritime local authorities in order to capture the vast amount of data that was required. To aid this, Halcrow developed an innovative WebGIS which provided an online tool to view and amend the driving data.

This web-tool incorporates the model driving the erosion predictions, Risk Assessment for Coastal Erosion (RACE), which was developed previously through a research and development project undertaken by the company.

Launching the pilot site, the Environment Minister, Richard Benyon, said: “We are making this information available in order to help communities and councils decide what action they need to take in order to adapt to coastal erosion.”

Project manager Jonathan Rogers said: “This is a groundbreaking project for the EA and one which will raise the public’s awareness of erosion risk and the impacts of coastal change. After the full roll out of the map next year, we will continue to work closely with the EA to ensure that the map is continually improved and updated and incorporates the latest data and science.”

Click here for more information >>> Halcrow

 

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