Hammersmith Bridge
Encyclopedia
Hammersmith Bridge is a crossing of the River Thames in west London
London
London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

, just south of the Hammersmith
Hammersmith
Hammersmith is an urban centre in the London Borough of Hammersmith and Fulham in west London, England, in the United Kingdom, approximately five miles west of Charing Cross on the north bank of the River Thames...

 town centre area of the London Borough of Hammersmith and Fulham
London Borough of Hammersmith and Fulham
The London Borough of Hammersmith and Fulham is a London borough in West London, and forms part of Inner London. Traversed by the east-west main roads of the A4 Great West Road and the A40 Westway, many international corporations have offices in the borough....

 on the north side of the river. It allows road traffic and pedestrians to cross to Barnes (in the London Borough of Richmond upon Thames
London Borough of Richmond upon Thames
The London Borough of Richmond upon Thames is a London borough in South West London, UK, which forms part of Outer London. It is unique because it is the only London borough situated both north and south of the River Thames.-Settlement:...

) on the south side of the river. The current bridge
Bridge
A bridge is a structure built to span physical obstacles such as a body of water, valley, or road, for the purpose of providing passage over the obstacle...

 is the second permanent bridge on the site.

History

The construction of a bridge was first sanctioned by an Act of Parliament
Act of Parliament
An Act of Parliament is a statute enacted as primary legislation by a national or sub-national parliament. In the Republic of Ireland the term Act of the Oireachtas is used, and in the United States the term Act of Congress is used.In Commonwealth countries, the term is used both in a narrow...

 in 1824 and work on site began the following year. It was the Thames’ first suspension bridge
Suspension bridge
A suspension bridge is a type of bridge in which the deck is hung below suspension cables on vertical suspenders. Outside Tibet and Bhutan, where the first examples of this type of bridge were built in the 15th century, this type of bridge dates from the early 19th century...

 and was designed by William Tierney Clark
William Tierney Clark
William Tierney Clark FRS was an English civil engineer particularly associated with the design and construction of bridges...

.

The bridge had a clear water-way of 688 in 8 in (209.91 m). Its suspension towers were 48 feet (14.6 m) above the level of the roadway, where they were 22 feet (6.7 m) thick. The roadway was slightly curved upwards, 16 feet (4.9 m) above high water, and the extreme length from the back of the piers on shore was 822 in 8 in (250.75 m), supporting 688 feet (209.7 m) of roadway. There were eight chains, composed of wrought-iron bars, each five inches deep and one thick. Four of these had six bars in each chain; and four had only three, making thirty-six bars, which form a dip in the centre of about 29 feet (8.8 m). From these, vertical rods were suspended, which supported the roadway, formed of strong timbers covered with granite. The width of the carriageway was 20 feet (6.1 m), with two footways of 5 feet (1.5 m). The chains passed over the suspension towers, and were secured to the piers on each shore. The suspension towers were of stone, and designed as archways of the Tuscan order. The approaches were provided with octagonal lodges, or toll-houses, with appropriate lamps and parapet walls, terminating with stone pillars, surmounted with ornamental caps. Construction of the bridge cost some £80,000. It was operated as a toll bridge
Toll bridge
A toll bridge is a bridge over which traffic may pass upon payment of a toll, or fee.- History :The practice of collecting tolls on bridges probably harks back to the days of ferry crossings where people paid a fee to be ferried across stretches of water. As boats became impractical to carry large...

.

By the 1870s Hammersmith Bridge was not strong enough to support the weight of heavy traffic and the owners were alarmed in 1870 when 11,000–12,000 people crowded onto the bridge to watch the University Boat Race, which passes under the bridge just before the halfway point of its 4¼-mile (6.8 km) course
The Championship Course
The stretch of the River Thames between Mortlake and Putney in London, England is a well-established course for rowing races, most famously the Oxford and Cambridge Boat Race. It is often referred to as The Championship Course...

. In 1884 a temporary bridge was put up to allow a more limited cross-river traffic while a replacement was constructed.

The current suspension bridge was designed by noted civil engineer
Civil engineer
A civil engineer is a person who practices civil engineering; the application of planning, designing, constructing, maintaining, and operating infrastructures while protecting the public and environmental health, as well as improving existing infrastructures that have been neglected.Originally, a...

 Sir Joseph Bazalgette
Joseph Bazalgette
Sir Joseph William Bazalgette, CB was an English civil engineer of the 19th century. As chief engineer of London's Metropolitan Board of Works his major achievement was the creation of a sewer network for central London which was instrumental in relieving the city from cholera epidemics, while...

 and rests on the same pier foundations constructed for Tierney Clark’s structure. The new bridge was built by Dixon, Appleby & Thorne. It was opened by the Prince of Wales
Edward VII of the United Kingdom
Edward VII was King of the United Kingdom and the British Dominions and Emperor of India from 22 January 1901 until his death in 1910...

 on 11 June 1887. With much of the supporting structure built of wrought iron, it is 700 feet (213.4 m) long and 43 feet (13.1 m) wide and cost £82,117 to build.

Structural soundness and repairs

Hammersmith Bridge has long suffered structural problems and has been closed for lengthy periods on several occasions, due to the weight and volume of road traffic now common in inner London
Inner London
Inner London is the name for the group of London boroughs which form the interior part of Greater London and are surrounded by Outer London. The area was first officially defined in 1965 and for purposes such as statistics, the definition has changed over time. The terms Inner London and Central...

, which the bridge was not originally designed to support.

The bridge was refurbished in 1973 with replacement steel trusses, improvements to the mid-span hangers and new deck expansion joints. New deck timbers were installed and surfacing was changed from wooden blocks to coated plywood panels. These panels were subsequently replaced in 1987.

In 1984 the Barnes-side tower bearings failed under a heavy load and had to be replaced.

In February 1997 the bridge was closed to all traffic except buses, bicycles, motorcycles, emergency vehicles and pedestrians to allow further essential repair works. Structural elements of the bridge had been found to be corroded or worn, in particular cross girders and deck surfacing, as well as some areas of masonry.

The bridge re-opened in July 1998 to all road users, subject to a 7.5 t weight restriction and with a priority measure in place for buses. Local bus flow was controlled by traffic lights, and routes (such as the 72) were required to convert from double-decker bus
Double-decker bus
A double-decker bus is a bus that has two storeys or 'decks'. Global usage of this type of bus is more common in outer touring than in its intra-urban transportion role. Double-decker buses are also commonly found in certain parts of Europe, Asia, and former British colonies and protectorates...

es to smaller single-deckers to reduce the load on the bridge.

As part of the renovations following the 2000 IRA bombing (see below), the bridge received a complete new paint job restoring it to the original colour scheme of 1887, and new lighting was installed.

The bridge was declared a Grade II* listed structure in 2008, providing protection to preserve its special character from unsympathetic development.

Lt Charles Campbell Wood

Near midnight on 27 December 1919 Lieutenant
Lieutenant
A lieutenant is a junior commissioned officer in many nations' armed forces. Typically, the rank of lieutenant in naval usage, while still a junior officer rank, is senior to the army rank...

 Charles Campbell Wood, a South African serving as an airman in the RAF
Royal Air Force
The Royal Air Force is the aerial warfare service branch of the British Armed Forces. Formed on 1 April 1918, it is the oldest independent air force in the world...

, dived from the upstream footway into the Thames to rescue a drowning woman. Although he saved her life he later died from tetanus
Tetanus
Tetanus is a medical condition characterized by a prolonged contraction of skeletal muscle fibers. The primary symptoms are caused by tetanospasmin, a neurotoxin produced by the Gram-positive, rod-shaped, obligate anaerobic bacterium Clostridium tetani...

 as a consequence of his injuries. His act of bravery is commemorated by a plaque on the handrail.

IRA attacks

At 4:30 am on 1 June 2000 the bridge was damaged by a Real IRA
Real Irish Republican Army
The Real Irish Republican Army, otherwise known as the Real IRA , and styling itself as Óglaigh na hÉireann , is an Irish republican paramilitary organisation which aims to bring about a united Ireland...

 bomb planted underneath the Barnes span. The blast came four years after a previous attempted bombing by the Provisional IRA
Provisional Irish Republican Army
The Provisional Irish Republican Army is an Irish republican paramilitary organisation whose aim was to remove Northern Ireland from the United Kingdom and bring about a socialist republic within a united Ireland by force of arms and political persuasion...

, but following two years of closure for repairs the bridge was reopened with further weight restrictions in place.

The IRA's first attempt
S-Plan
The S-Plan or Sabotage Campaign or England Campaign was a campaign of bombing and sabotage against the civil, economic, and military infrastructure of the United Kingdom from 1939 to 1940, conducted by members of the Irish Republican Army . It was conceived by Seamus O'Donovan in 1938 at the...

 to destroy the bridge in 1939 had been foiled by a quick-thinking member of the public. Maurice Childs, a hairdresser from nearby Chiswick
Chiswick
Chiswick is a large suburb of west London, England and part of the London Borough of Hounslow. It is located on a meander of the River Thames, west of Charing Cross and is one of 35 major centres identified in the London Plan. It was historically an ancient parish in the county of Middlesex, with...

 was walking home across the bridge in the early morning when he noticed smoke and sparks coming from a suitcase. He opened it to find a bomb. He threw the bag into the river and the resultant explosion sent up a 60 feet (18.3 m) column of water. Moments later, a second device exploded causing girders on the west side of the bridge to collapse and shattering windows in nearby houses.

Mr Childs was awarded an MBE
MBE
MBE can stand for:* Mail Boxes Etc.* Management by exception* Master of Bioethics* Master of Bioscience Enterprise* Master of Business Engineering* Master of Business Economics* Mean Biased Error...

 for his courage.

Eddie Connell and William Browne were subsequently given jail sentences of 20 and 10 years respectively, for involvement in the bombing.

External links

Partial view of William Tierney Clark's bridge, circa 1880
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