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Royal Border Bridge
The Royal Border Bridge spans the River Tweed between Berwick-upon-Tweed and Tweedmouth in Northumberland, England. It is a Grade I listed railway viaduct built between 1847 and 1850, when it was opened by Queen Victoria. It was designed by Robert Stephenson (son of railway pioneer George Stephenson). It was built for the York, Newcastle and Berwick Railway and is still in regular use today, as part of the East Coast Main Line. Despite its name, the bridge does not in fact span the border between England and Scotland, which is approximately three miles further north.
The bridge is 659 metres (2,162 ft) long and constructed in stone except for brick soffits to the arches. It has 28 arches, each spanning 60 feet (18 m). The railway is carried 37 metres (121 ft) above the river level. During 1989, it was electrified as a part of the wider East Coast Main Line electrification scheme. Between 1993 and 1996, the structure underwent significant repair work for the first time in a Railtrack-led project, which was partially funded by English Heritage.
The Royal Border Bridge has its origins in the ambitions of Newcastle and Berwick Railway (N&BR) company, which was formed in 1845 under the control of the prolific railway financier and politician George Hudson. Almost immediately following its founding, the N&BR's proposed line was authorised by an Act of Parliament and construction work had commenced by July 1845. While much of the line was completed within two years of this date, work upon several major structures, including the Royal Border Bridge, had barely begun.
In order to construct the line along the surveyed route, the completion of several major structures, such as the High Level Bridge in Newcastle and the Royal Border Bridge itself, was necessary to traverse terrain features. In the case of the Royal Border Bridge, it was required to take the line over the River Tweed at a site close to the town of Berwick-upon-Tweed, Northumberland. During 1847, Hudson was instrumental in the merger of the N&BR with another of his business interests, the York and Newcastle Railway (Y&NR) to form the York, Newcastle and Berwick Railway (YN&BR). This combined entity sought to complete a continuous line between the British capital cities of London and Edinburgh.
The company's chief engineer, and thus the individual most crucial to the completion of the desired line, was the noted railway engineer Robert Stephenson, who was the son of the railway pioneer George Stephenson. Regardless of Stephenson's presence at the YN&BR, the majority of the planning and engineering was undertaken by the civil engineer Thomas Elliot Harrison, albeit this work was performed under Stephenson's supervision. In particular, Stephenson typically played a hands-on role in the design of the key bridges along the envisioned route, although some of the detailed work was commonly performed by other figures as well.
The viaduct, which is constructed on a gentle curve, was a conventional masonry structure. It consists of 28 arches, 15 of which being over land to the south of the River Tweed and 13 over the river itself; these were set out in two groups separated by a stop pier. Masonry is used throughout the structure, which is complete with brickwork soffits that form the arches' undersides, and covered by stone cladding. The greatest height of the structure is 38.4 metres, which is located at the deepest point of the riverbed below. Possessing a total length of 658 metres, each of the bridge's over-arch spans measures 18.6 metres. The contract for the bridge's construction pertained to a one-mile length of the route; the non-masonry sections consist of earth embankments.
On 15 May 1847, the foundation stone for what would become the Royal Border Bridge, which was then simply referred to as the Tweed Viaduct, was laid. The Cumberland-based construction firm McKay & Blackstock were appointed to build the structure, while the civil engineer George Barclay Bruce, a former apprentice of Stephenson's, was selected to serve as the resident engineer, being responsible overseeing the day-to-day work at the site. Reportedly, the construction of the Royal Border Bridge consumed 8 million cubic feet (227,000 cubic metres) of stone; the inner part of the arches alone required 2.5 million bricks. Many of the same techniques that had been employed in the construction of Newcastle's High Level Bridge were shared with this structure as well. At the height of construction activity, the workforce is believed to have involved upwards of 2,700 men.
During the designing of the structure, particular attention was paid to the foundations of the bridge. Firmly anchoring the bridge involved the driving of many piles into the bedrock, which could be reached only by going through roughly 12 metres of dense gravel above; this task was considerably aided by the application of a patented Nasmyth steam-powered pile driver. In order to control and effectively drain away water at the site, several deep cofferdams were constructed which, along with several steam-driven pumps, worked together to keep out the water.
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Royal Border Bridge AI simulator
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Royal Border Bridge
The Royal Border Bridge spans the River Tweed between Berwick-upon-Tweed and Tweedmouth in Northumberland, England. It is a Grade I listed railway viaduct built between 1847 and 1850, when it was opened by Queen Victoria. It was designed by Robert Stephenson (son of railway pioneer George Stephenson). It was built for the York, Newcastle and Berwick Railway and is still in regular use today, as part of the East Coast Main Line. Despite its name, the bridge does not in fact span the border between England and Scotland, which is approximately three miles further north.
The bridge is 659 metres (2,162 ft) long and constructed in stone except for brick soffits to the arches. It has 28 arches, each spanning 60 feet (18 m). The railway is carried 37 metres (121 ft) above the river level. During 1989, it was electrified as a part of the wider East Coast Main Line electrification scheme. Between 1993 and 1996, the structure underwent significant repair work for the first time in a Railtrack-led project, which was partially funded by English Heritage.
The Royal Border Bridge has its origins in the ambitions of Newcastle and Berwick Railway (N&BR) company, which was formed in 1845 under the control of the prolific railway financier and politician George Hudson. Almost immediately following its founding, the N&BR's proposed line was authorised by an Act of Parliament and construction work had commenced by July 1845. While much of the line was completed within two years of this date, work upon several major structures, including the Royal Border Bridge, had barely begun.
In order to construct the line along the surveyed route, the completion of several major structures, such as the High Level Bridge in Newcastle and the Royal Border Bridge itself, was necessary to traverse terrain features. In the case of the Royal Border Bridge, it was required to take the line over the River Tweed at a site close to the town of Berwick-upon-Tweed, Northumberland. During 1847, Hudson was instrumental in the merger of the N&BR with another of his business interests, the York and Newcastle Railway (Y&NR) to form the York, Newcastle and Berwick Railway (YN&BR). This combined entity sought to complete a continuous line between the British capital cities of London and Edinburgh.
The company's chief engineer, and thus the individual most crucial to the completion of the desired line, was the noted railway engineer Robert Stephenson, who was the son of the railway pioneer George Stephenson. Regardless of Stephenson's presence at the YN&BR, the majority of the planning and engineering was undertaken by the civil engineer Thomas Elliot Harrison, albeit this work was performed under Stephenson's supervision. In particular, Stephenson typically played a hands-on role in the design of the key bridges along the envisioned route, although some of the detailed work was commonly performed by other figures as well.
The viaduct, which is constructed on a gentle curve, was a conventional masonry structure. It consists of 28 arches, 15 of which being over land to the south of the River Tweed and 13 over the river itself; these were set out in two groups separated by a stop pier. Masonry is used throughout the structure, which is complete with brickwork soffits that form the arches' undersides, and covered by stone cladding. The greatest height of the structure is 38.4 metres, which is located at the deepest point of the riverbed below. Possessing a total length of 658 metres, each of the bridge's over-arch spans measures 18.6 metres. The contract for the bridge's construction pertained to a one-mile length of the route; the non-masonry sections consist of earth embankments.
On 15 May 1847, the foundation stone for what would become the Royal Border Bridge, which was then simply referred to as the Tweed Viaduct, was laid. The Cumberland-based construction firm McKay & Blackstock were appointed to build the structure, while the civil engineer George Barclay Bruce, a former apprentice of Stephenson's, was selected to serve as the resident engineer, being responsible overseeing the day-to-day work at the site. Reportedly, the construction of the Royal Border Bridge consumed 8 million cubic feet (227,000 cubic metres) of stone; the inner part of the arches alone required 2.5 million bricks. Many of the same techniques that had been employed in the construction of Newcastle's High Level Bridge were shared with this structure as well. At the height of construction activity, the workforce is believed to have involved upwards of 2,700 men.
During the designing of the structure, particular attention was paid to the foundations of the bridge. Firmly anchoring the bridge involved the driving of many piles into the bedrock, which could be reached only by going through roughly 12 metres of dense gravel above; this task was considerably aided by the application of a patented Nasmyth steam-powered pile driver. In order to control and effectively drain away water at the site, several deep cofferdams were constructed which, along with several steam-driven pumps, worked together to keep out the water.