Bridges

Reason and inspiration
The Bridges stamp issue celebrates the leaps in engineering that have seen the UK’s bridges evolve from humble stone crossings to dramatic symbolic landmarks conceived by progressive architects. The stamp images feature British bridges constructed from a wide range of different materials, including gritstone, limestone, cast iron, wrought iron and steel, while referencing diverse styles of bridge engineering, from clapper and stone arch to suspension and bowstring girder.

Stamp details
Designed by London agency GBH, the ten photographic stamps from locations spanning the whole UK, are arranged chronologically: pre-1600 – Tarr Steps, River Barle; 1700s – Row Bridge, Mosedale Beck; c.1774 – Pulteney Bridge, River Avon; 1814 – Craigellachie Bridge, River Spey; 1826 – Menai Suspension Bridge, Menai Strait; 1849 – High Level Bridge, River Tyne; 1850 – Royal Border Bridge, River Tweed; 1911 – Tees Transporter Bridge, River Tees; 1981 – Humber Bridge, River Humber; 2011 – Peace Bridge, River Foyle.

TARR STEPS
The origins of Tarr Steps, which crosses the River Barle in Exmoor National Park, are not definitively known. It has long been suggested that the structure could be up to 3,000 years old, but recent research reveals it is most likely to date from the 15th or 16th century. Tarr Steps is a most elemental bridge formed by large slabs of gritstone – weighing up to 2 tons each and varying in length from 2 to 2.9 metres – placed flat on broad, low piers made from blocks of stone. Comprising 17 spans, the 55-metre bridge is held together by weight with no system of fixings or mortar. Serious flood damage over the years has resulted in substantial rebuilding and repairing of the original stones, but Tarr Steps remains an outstanding example of clapper-bridge construction.

ROW BRIDGE
Believed to have been constructed in the mid 18th century, this packhorse bridge over Mosedale Beck at Wasdale Head in Cumbria is a fine example of a type of bridge common in Western Europe in the Middle Ages. Goods were often carried in panniers slung from packhorses, so bridges on trade routes could be narrow, making them quick and cheap to build. The relative lightness of the loads carried by this type of bridge – simply single rows of packhorses – meant that their forms could be daring, with added strength given to the material used through bold and ingenious design. Typically, as with Row Bridge, they were conceived as high semi-circular or segmental stone-built arches (an inherently strong form), often crossing a river or chasm in one slender span.

PULTENEY BRIDGE
Designed by the esteemed Scottish architect Robert Adam, Pulteney Bridge in Bath is the UK’s finest example of an ‘inhabited’ bridge. Completed by 1774, it contains shops, originally with accommodation above, and was built to link the ancient centre of Bath with the proposed new Bathwick estate on the opposite bank of the River Avon. Adam based his structure on an unbuilt design by the great 16th-century architect Andrea Palladio, which the Italian had entered into a competition to build a bridge at the Rialto in Venice. Though Palladio’s scheme was not selected, it was published and became an inspiration for 18th-century architects such as Adam, whose resulting creation, made from mellow Bath stone, with its three semi-circular arches and pedimented centre pavilion, is one of the most beautiful classical bridges in the world.

CRAIGELLACHIE BRIDGE
Designed by Thomas Telford and completed in 1814, Craigellachie Bridge carries the roadway on a single 46-metre-long arched span over the River Spey in Moray, Scotland.
Telford had the arch made of cast iron, which was revolutionary at the time because, unlike masonry, only iron could achieve the single long, slender and shallow arch required. The components were cast at a Welsh foundry in controlled conditions to ensure high quality and delivered to the site for assembly. Cast iron is very strong in compression but has low tensile strength, making it ideal for columns but not for beams. Well aware of the metal’s structural limitations, Telford built the bridge ensuring that the maximum number of its components are in compression. The span of the arch is restrained by masonry towers, designed in picturesque manner to look like miniature castles.

PONT GROG Y BORTH MENAI SUSPENSION BRIDGE
Completed in 1826 to Thomas Telford’s design, the Menai Suspension Bridge linking the island of Anglesey to the Welsh mainland remains one of the most breathtaking bridges ever built in Britain.
The central span of its roadway, 176.5 metres long and set 30 metres above water level to allow tall-masted ships to pass beneath, was carried by 16 wrought-iron chains (since replaced by steel chains).
The road on either side of the central span is supported by tall and elegant arched limestone viaducts. With a total length of 305 metres, this was the world’s first great suspension bridge and established the potential of suspension-bridge technology to achieve both high and lengthy spans.

HIGH LEVEL BRIDGE
Linking Newcastle-upon-Tyne with Gateshead, the High Level Bridge is one of the most innovative and visually powerful bridges created during Britain’s Railway Age.
This two-tier 408-metre-long bridge, designed by Robert Stephenson to carry road and rail traffic at a high level across the Tyne and allow tall-masted shipping below, is a hymn to the strength, utility and robust beauty of cast iron, used in combination with stone and wrought iron. The tall piers, up to 40 metres high, are made of local sandstone, which possesses great compressive strength and is able to withstand damp, while the iron bow-string girders forming the spans of the bridge (the widest being 38.1 metres) use cast iron for components that are in compression and wrought iron for elements that require tensile strength.

ROYAL BORDER BRIDGE
Crossing the River Tweed between Berwick-upon-Tweed and Tweedmouth, the Royal Border Bridge was constructed between 1847 and 1850 to the design of Robert Stephenson and was a key component in Britain’s expanding railway system, linking London to Edinburgh.
Of traditional masonry construction, the bridge is essentially a railway viaduct formed of 28 semi-circular-headed arches, each with a span of 18 metres, with the total length of the bridge – including approach works – reaching 658 metres. This vast extent, combined with the majestic 38-metre height of the arches as they cross the river and the slender form of the vertical piers, from which the arches spring, gives the structure a striking elegance. A superb piece of functional engineering, it is also a work of great beauty that complements the rugged border landscape through which it passes.

TEES TRANSPORTER BRIDGE
Completed in 1911, the Tees Transporter Bridge in Middlesbrough is a most novel and visually arresting piece of engineering. Vast in scale and utilitarian in appearance, its stripped-back, lattice-steel structure incorporates a pair of cantilevered trusses that span 259 metres – with a clearance above water of almost 49 metres – that are used to carry a ‘gondola’ across the river. Powered by electric motors, the gondola – which can convey both people and vehicles – is suspended above the river and pulled from one side to the other by a hauling cable in approximately two minutes. This unique design – executed by Sir William Arrol & Co. of Glasgow – was economic to construct and ensured that the crossing would not interfere with river traffic.

HUMBER BRIDGE
More than a century after the notion of a bridge or tunnel crossing the Humber estuary had first been debated, the eventual completion of the Humber Bridge in 1981 redefined the boundaries for suspension-bridge technology.
Its complex construction, by consulting engineers Freeman Fox & Partners, took nine years. With a total length of 2,220 metres and a central span of 1,410 metres between two towers of reinforced concrete, for 16 years the Humber Bridge was the longest single-span suspension bridge in the world. Its mighty scale, elegant minimal form and the fact that it leaps across one of England’s great natural boundaries has captured the imagination. The poet Philip Larkin, who lived in Kingston-upon-Hull, wrote ‘Bridge for the Living’, a poem that was set to music to celebrate the opening of the Humber Bridge.

PEACE BRIDGE
Spanning the River Foyle in Derry/Londonderry in Northern Ireland, the Peace Bridge functions not only as an urban route, but also as a work of art. Its ingenuity is expressed through delicacy and elegance.
This unique bridge, constructed for pedestrians and cyclists, was conceived as two distinct structural systems that work in absolute harmony. Completed in 2011 to the designs of Wilkinson Eyre, the Peace Bridge features a pair of tall masts, whose system of cables overlap mid-river to form a symbolic structural ‘handshake’ across the Foyle. The 235-metre-long pathway of this self-anchored suspension bridge provides a promenade and makes connections, while evoking a sense of pride, place and unity.

Stamp Issue: 2015.03.05

25th Anniversary of CEPT - Great Britain

In 1984 CEPT (Conference Europeenne des Administrations des Postes et des Telecomunications) celebretes its 25th annversary. The CEPT was formed in 1959 in Montreux in Switzerland and it is an organization at administrative level.

The CEPT member countries issue EUROPA stamps every year with a common theme. For the 25th anniversary they also have the same motif: a bridge symbolizing communications, exchange and connection.

Stamp Issue: 1984-05-15

Bicentenary of the birth of Isambard Kingdom Brunel

Isambard Kingdom Brunel was a true genius of the Industrial Age, whose vision and daring produced some of the greatest engineering wonders of Victorian Britain. To mark the 200th anniversary of Brunel’s birth Royal Mail worked with eminent Brunel historians to select six examples from his incredible portfolio of work.


1st class - Royal Albert Bridge (1854-1857). The magnificent Royal Albert Bridge, designed and built to carry the Cornwall Railway at a height of 100 feet across the waters of the River Tamar at Saltash, must surely be recognised as one of his most outstanding works. Its unique design and handsome proportions, set in an idyllic location between the hills of Devon and Cornwall, give an aura of grace and majesty all of its own. As the “Gateway to Cornwall” it forms a fitting and lasting memorial to this great Victorian engineer. The stamp features a steel engraving of the Royal Albert Bridge, Saltash by Cornish artist R T Pentreath.

40p - Box Tunnel (1836-1841). This was the most difficult engineering problem that Isambard Brunel had to solve when building the London to Bristol line. Positioned between Bath and Swindon, Box Hill consists mainly of limestone. Five miles east of Bath and still in use today, it was built to bring the Great Western Railway down to Bristol from Swindon. The first train passed through on 30 June, 1841. The stamp image is taken from a coloured lithograph West Entrance to Box Tunnel on the Great Western Railway by John Cook Bourne, 1846.

42p Paddington Station (1849-1854). Brunel was ambitious in the design of the GWR’s London terminus, which he was charged with rebuilding in 1849 to accommodate the crowds expected to converge on London for the 1851 Great Exhibition. He was asked to construct a flexible covered space without columns to accommodate the railway’s future needs and to outshine the London terminus of the GWR’s arch-rival, the Great Northern Railway, at Euston. In an age when the new railways were regarded as the acme of modernity and sources of future prosperity for provincial cities and towns, public interest in Brunel’s daring schemes for the GWR was intense. The stamp image is a photograph taken by York and Son between 1870 and 1890.

47p PSS Great Eastern (1858). The Great Eastern was designed by Brunel. She was the largest ship ever built at the time of her launch, and had the capacity to carry 4,000 passengers around the world without refuelling. She would only be surpassed in length in 1899 (by the SS Oceanic), and in tonnage in 1901 (by the SS Celtic). She was built in partnership with an experienced ship designer, John Scott Russell. Unknown to Brunel, Russell was in financial difficulties, and the two men disagreed on many details. It was Brunel’s final great project, as he collapsed after being photographed on her deck, and died a few days later. She was built by Messrs Scott, Russell & Co. of Millwall, London, the keel being laid down on May 1, 1854. She was launched on January 31, 1858. She was 692 feet (211 m) long, 83 feet (25 m) wide, 60 feet (18 m) deep (draught was 20 ft (6.1 m) unloaded and 30 ft (9.1 m) fully laden) and weighed 32,000 tons (her tonnage was 18,915). Little is known about this image apart from the fact that it is dated around 1860.

60p - Clifton Suspension Bridge (1831-1864). The story of the Clifton Suspension Bridge, spanning the Avon Gorge, began in 1754 with the dream of a Bristol wine merchant, who left a legacy to build a bridge over the Gorge. A competition in 1829 was held to find a design, being judged by Thomas Telford, the leading civil engineer of the day. Telford rejected all the designs and submitted his own but the decision to declare him the winner was unpopular and a second competition was held in 1830. Isambard Kingdom Brunel, only 24 at the time, was eventually declared the winner and appointed project engineer – his first major commission. The image is taken from the lithograph Clifton Suspension Bridge by G Childs, after a sketch by S Jackson circa 1834.

68p - Maidenhead Bridge (1838). Maidenhead Railway Bridge carryied the main line of the Great Western Railway over the River Thames in Maidenhead, Berkshire. The railway is carried across the river on two brick arches, which at the time of building were the widest and flattest in the world. Each span is 128 feet (39 m), with a rise of only 24 feet (7 m). The Thames towpath passes under the right-hand arch (facing upstream), which is also known as the Sounding Arch, because of its spectacular echo. As built, Maidenhead Railway Bridge carried two lines of Brunel’s broad gauge track. Subsequently the bridge has been widened, and now carries the four lines of standard gauge track that make up the Great Western Main Line out of London Paddington Station. The image is taken from a colour lithograph of the Maidenhead Bridge by John Cook Bourne.

Stamp Issue: 2006-02-23