Clifton Suspension Bridge
Clifton Suspension Bridge
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Clifton Suspension Bridge

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Clifton Suspension Bridge

The Clifton Suspension Bridge is a suspension bridge spanning the Avon Gorge and the River Avon, linking Clifton in Bristol to Leigh Woods in North Somerset. Since opening in 1864, it has been a toll bridge, the income from which provides funds for its maintenance. The bridge is built to a design by William Henry Barlow and John Hawkshaw, based on an earlier design by Isambard Kingdom Brunel. It is a Grade I listed building and forms part of the B3129 road.

The idea of building a bridge across the Avon Gorge originated in 1753. Original plans were for a stone bridge and later iterations were for a wrought iron structure. In 1831, an attempt to build Brunel's design was halted by the Bristol riots, and the revised version of his designs was built after his death and completed in 1864. Although similar in size and design, the bridge towers are not identical, the Clifton tower having side cut-outs, the Leigh tower more pointed arches atop a 110-foot (34 m) red sandstone-clad abutment. Roller-mounted "saddles" at the top of each tower allow movement of the three independent wrought iron eyebar chains on each side when loads pass over the bridge. The bridge deck is suspended by 162 vertical wrought-iron rods in 81 matching pairs.

The Clifton Bridge Company initially managed the bridge under licence from a charitable trust. The trust subsequently purchased the company shares, completing this in 1949 and took over the running of the bridge using the income from tolls to pay for maintenance. The bridge is a distinctive landmark, used as a symbol of Bristol on postcards, promotional materials, and informational web sites. It has been used as a backdrop to several films and television advertising and programmes. It has also been the venue for significant cultural events such as the first modern bungee jump in 1979, the last Concorde flight in 2003 which flew over the bridge, and a handover of the Olympic Torch relay in 2012.

It is unknown when the first bridge was constructed across the Avon in Bristol, but the first stone bridge, Bristol Bridge, was built in the 13th century. It had houses with shopfronts built on it to pay for its maintenance. A 17th-century illustration shows that these bridge houses were five storeys high, including the attic rooms, and that they overhung the river much as Tudor houses would overhang the street. In the 1760s a bill to replace the bridge was carried through parliament by the Bristol MP Sir Jarrit Smyth. By the early 18th century, increase in traffic and the encroachment of shops on the roadway made the bridge fatally dangerous for many pedestrians. A new bridge, designed by James Bridges and finished by Thomas Paty was built in 1769 and 1776. Resentment at the tolls exacted to cross the new bridge occasioned the Bristol Bridge Riot of 1793. Other crossings were considered, but were restricted by Admiralty rules that stipulated that any bridge had to be at least 100 feet (30 m) above the water to allow the passage of tall-masted warships to Bristol Harbour. To achieve this, any bridge constructed between Bristol Bridge and Avon Gorge, from Hotwells to Ashton Gate, would require massive embankments and viaducts. The alternative was to build across the narrowest point of the Avon Gorge, well above the height required for shipping.

In 1753 Bristolian merchant William Vick had left a bequest in his will of £1,000 (equivalent to £190,000 in 2023), invested with instructions that when the interest had accumulated to £10,000 (£1,920,000), it should be used for the purpose of building a stone bridge between Clifton Down (which was in Gloucestershire, outside the City of Bristol, until the 1830s) and Leigh Woods in Somerset. Although there was little development in the area before the late 18th century, as Bristol became more prosperous, Clifton became fashionable and more wealthy merchants moved to the area. In 1793 William Bridges published plans for a stone arch with abutments containing factories, which would pay for the upkeep of the bridge. The French Revolutionary Wars broke out soon after the design was published, affecting trade and commerce, so the plans were shelved. In 1811 Sarah Guppy patented a design for a suspension bridge across the gorge but this was never realised and was not submitted to the later competition.

By 1829, Vick's bequest had reached £8,000, but it was estimated that a stone bridge would cost over ten times that. A competition was held to find a design for the bridge with a prize of 100 guineas. Entries were received from 22 designers, including Samuel Brown, James Meadows Rendel, William Tierney Clark and William Hazledine. Several were for stone bridges and had estimated costs of between £30,000 and £93,000. Brunel submitted four entries. The judging committee rejected 17 of the 22 plans submitted, on the grounds of appearance or cost. They then called in Scottish civil engineer Thomas Telford to make a final selection from the five remaining entries. Telford rejected all the remaining designs, arguing that 577 feet (176 m) was the maximum possible span. Telford was then asked to produce a design himself, which he did, proposing a 110-foot-wide (34 m) suspension bridge, supported on tall Gothic towers, costing £52,000.

The Bridge Committee which had been set up to look at the designs sponsored the Clifton Bridge Bill which became an act, the Clifton Suspension Bridge Act 1830 (11 Geo. 4 & 1 Will. 4. c. lxix), when the bill received royal assent on 29 May 1830. The act appointed three trustees to carry through the purposes of the act, with powers to appoint more up to a total not exceeding thirty five or less than twenty. The three trustees named in the act were the Master of the Society of Merchant Venturers, the Senior Sheriff of the City and County of Bristol and Thomas Daniel. The act allowed a wrought iron suspension bridge to be built instead of stone, and tolls levied to recoup the cost.

The three trustees named in the act met on 17 June 1830 and appointed further trustees, bringing the total up to 23. There were additions to this number in the weeks which followed, so by early July 1830 there were 31 in all, although not everyone had been formally sworn in by that date. Others included Thomas Durbin Brice, Master of the Society of Merchant Venturers, George Daubeny, John Cave, John Scandrett Harford, George Hilhouse, Henry Bush, and Richard Guppy.

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