Erskine Bridge | |
---|---|
Coordinates | 55°54′48″N4°28′20″W / 55.9133°N 4.4721°W |
Carries | Motor vehicles, cyclists, pedestrians |
Crosses | River Clyde |
Locale | Erskine, Scotland |
Official name | Erskine Bridge (A898) |
Maintained by | Transport Scotland |
Characteristics | |
Design | Box girder bridge |
Material | Steel, concrete |
Total length | 1,321.87 m (4,336.8 ft) |
Width | 31.25 m (102.5 ft) |
Height | 45 m (148 ft) |
Longest span | 305 m (1,001 ft) |
No. of spans | 15 |
Load limit | 500 t (490 long tons; 550 short tons) |
Design life | 120 years [1] |
History | |
Architect | R.E. Slater |
Designer | William Brown |
Constructed by | Freeman Fox & Partners, W.A.Fairhurst and Partners, Christiani & Nielsen, Lehane, Mackenzie and Shand Ltd |
Fabrication by | Fairfields-Mabey |
Construction start | 1967 |
Construction cost | £10.5 million |
Inaugurated | 2 July 1971 |
Replaces | Erskine Ferry |
Statistics | |
Daily traffic | ~35,000 vehicles |
Toll | Free |
Location | |
The Erskine Bridge is a multi span cable-stayed box girder bridge spanning the River Clyde in west central Scotland. [2] The bridge connects West Dunbartonshire with Renfrewshire and can be used by all types of motor vehicles, cyclists and pedestrians. As well as crossing the Clyde, the bridge also crosses the Forth and Clyde Canal and the North Clyde railway line. A small part of Kilpatrick railway station is situated underneath the bridge at the north side. The bridge is part of the A898 road. [3] On completion the bridge replaced the Erskine to Old Kilpatrick ferry service. [4]
The bridge was designed by William Brown (1928–2005), a structural engineer and bridge designer who specialised in suspension bridges. He was one of the principal designers at Freeman Fox & Partners (now Hyder Consulting) from 1956-85. Supervising engineer on the project was Oleg Kerensky and the architect on site was R.E. Slater. There were several firms who constructed the bridge between 1967-71. The structural engineering was done by Freeman Fox & Partners and the steel fabrication was completed by Fairfields-Mabey. W.A. Fairhurst and Partners (now Fairhurst) designed and oversaw construction of the concrete piers and foundations. Christiani & Nielsen, Lehane Mackenzie and Shand Ltd were the contractors for the foundations and piers. The steel cable supplier was Bridon International. Force Technology were responsible for wind tunnel testing of the bridge.
Steel was used to construct the deck and pylons and the piers are made from concrete. The road surface is mastic asphalt and consists of a two-lane dual carriageway and cycle/footpaths on each side. It has a 305 m (1,001 ft) main span and two 110 m (360 ft) approach spans. The width of the road deck is 31.25 m (102.5 ft). Pylon height is 38 m (125 ft) high. The total length of the bridge including approaches is 1,321.87 m (4,336.8 ft). The clearance of the bridge is 45 m (148 ft). The weight of the steel is 11,700 tonnes. 1,250 miles (2,010 km) of galvanised wire with a breaking load of 500 tonnes were used during construction. [5] [6] [7] [8] The bridge has 15 spans in total and rests on 14 diamond shaped piers which have been designed to allow air to circulate freely around them. The deck and piers have been designed to flex with temperature changes. In the event of the bridge traffic numbers increasing the cycle tracks can be configured to include a third lane. There are 4 water mains pipes and 2 gas pipes running the full length of the underside of the bridge. [9] [10] [11] It is the only bridge in Scotland with single cables over central main supports and was in this respect a precursor of the Millau Viaduct in France. At the time of building it was the longest bridge of its type in the world. [6] [12] The bridge cost,including approaches, was £10.5million(equivalent to £202,750,000in 2021). [13] . [8]
Princess Anne opened the bridge on 2 July 1971. [14] The ceremonial plaque of the opening can be seen on the railings of the western footpath, at the centre of the main span.
Whilst the bridge was being constructed, the West Gate Bridge in Australia also designed by Freeman Fox & Partners, collapsed. An investigation published on 14 July 1971 found faults in the design. The reason for collapse was a difference in camber between 2 girders on the west span. The Erskine Bridge had already opened but needed further stiffening to meet new standards established due to the collapse of the West Gate Bridge. [2]
The bridge operates an overload weight detection system which logs vehicles axle weights. The weigh in motion system uses electric sensors and an ANPR camera. There is also a camera that takes photos of the vehicle from side-on which can identify the haulage company at fault. The system can also check if HGV axles are lifted when they should not be and is operational 24 hours a day. Reports can be printed for overweight vehicles. [15]
The bridge itself is the A898 road and its short approach from the south is the M898 motorway which is a spur from the M8 motorway. The bridge connects Erskine in Renfrewshire on the south side to the A82 (Great Western Road) at Old Kilpatrick in West Dunbartonshire on the northern side. The bridge is set at a high level to allow the passage of shipping beneath. [8] This offers views of Erskine, Mar Hall, Erskine Hospital, Erskine Bridge Hotel, Dumbarton, River Clyde, Glasgow Airport and the Kilpatrick Hills. The area around the bridge has some historical significance as there have been various pieces of Roman artifacts found. Historical items found at the site include Roman coins known as sestertius and a crannog which is an artificial island. [16] [17] The bridge is the most downstream of all the Clyde bridges and is the last point at which the estuary can be crossed by road. Its main function is to divert traffic away from Glasgow and the urban stretches of the A82 which run through the city's West End and outer suburbs. The location of the bridge means that the bridge is used by tourist traffic from Glasgow International Airport bound for Loch Lomond and the north west Highlands. [5]
The bridge was a toll bridge until 31 March 2006. Apcoa Parking UK Ltd collected tolls on the bridge from June 1992. The tolling booths were situated at the south side of the bridge and were constructed by Culford Art Metal. [9] On 1 March 2006 the Transport Minister published a Tolls Suspension Order following an announcement that the tolling was to cease after 31 March 2006. [18] The bridge had briefly been free of charge before - in 2001 an oversight caused the legislative order enforcing the toll to lapse and drivers crossed free until the new legislation was enforced. [19] At this point the contract for toll collection was put out to tender and was re-awarded to Apcoa from 1 April 2002. [20] The contract for toll collection expired on 31 March 2006. Toll charges from the beginning of the 1992-93 accounting period tolls had been a flat rate of 60p on all vehicles, except motorcycles and exempt categories. A discount of 10% was available to those purchasing 50 pre-paid crossing vouchers. Fire and police vehicles, ambulances, maintenance vehicles, and vehicles displaying disabled badges were exempt. [20] The bridge was one of only three toll bridges left in Scotland when the tolls were abolished. [21] The others were the Forth Road Bridge and the Tay Road Bridge. The tolls were abolished on those bridges on 11 February 2008. [22] The bridge had collected £72 million in tolls by 2001 and collected £5.676m in the last operating year. [23] [24] Its current traffic levels are estimated at 35,000 vehicles per day and because of this the bridge was considered something of a white elephant given its elaborate design yet relatively low traffic levels compared to the congested Kingston Bridge further upstream. [23] [25] In the last accounting period between 1 April 2006 - 2 July 2006 whilst the tolls were free the bridge saw an increase in traffic on the previous year by 27.33%. [26] The bridge is now part of the trunk road network of Scotland and is the responsibility of Transport Scotland. [27]
There have been two known births on the bridge. The first was a boy who was born 19 September 1990. He was subsequently named Oliver Erskine Edwards in homage to the bridge. A second baby, Kiera Sarah-Marie McFettridge was born in an ambulance on the bridge on 18 January 2011. [28] The bridge has been used once by a group of base jumpers in August 2010. A Royal Navy Westland Sea King helicopter from HMS Gannet, coastguard teams and officers from Strathclyde Fire and Rescue Service were all called out to the bridge following the incident. [29] An oil rig called the Texaco Captain collided with the road deck on 4 August 1996 resulting in the closure of the bridge. The oil rig was constructed upstream at Clydebank before being towed down the River Clyde. [30] The bridge reopened to pedestrians and cyclists on 22 August 1996. This was followed by cars and motorcycles on 30 August 1996 and was opened again to all vehicles including heavy goods vehicles on 22 December 1996. Repairs to the bridge cost £3.6 million with a further £700,000 in lost revenue from tolls. [31] The bridge has also been the subject of a murder investigation and ensuing court case after parts of a man's dismembered body were found underneath the bridge in late 2001. A man was subsequently arrested and convicted for this crime. [32]
The bridge is one of Scotland's most notorious suicide spots: estimates suggest that more than fifteen people commit suicide there each year. [33] [34] [35] [36] [37] [38] [39] This has led to the Samaritans charity placing signs at each path leading onto the bridge and also within four public telephone boxes that are situated on the twin footpaths running adjacent to the roadway on either side of the river. There are also normal SOS phones as seen on motorways nationwide. The bridge was brought into the media spotlight again after the death of two teenage girls who absconded from a nearby secure unit. [40] [41] [42] In September 2011, work started to install suicide barriers along the length of the bridge to prevent future suicide attempts. Installation of the new barriers was completed by Amey Highways at a cost of £3.5 million. [43] The vehicle barriers are also being upgraded. The new barriers being installed are H4a High Containment Vehicle Barriers. These works will also see the towers and the suspension cables being re-painted. Stage one of this upgrade started on 15 July 2013 and is scheduled to last for 12 months. Highway Barrier Solutions are undertaking the upgrade which will cost £6 million and whilst ongoing the traffic is being monitored by Bluetooth technology. There are detectors on the bridge entry points which feed live traffic reports to the Traffic Scotland website. [44]
The Golden Gate Bridge is a suspension bridge spanning the Golden Gate, the one-mile-wide (1.6 km) strait connecting San Francisco Bay and the Pacific Ocean. The structure links the U.S. city of San Francisco, California—the northern tip of the San Francisco Peninsula—to Marin County, carrying both U.S. Route 101 and California State Route 1 across the strait. It also carries pedestrian and bicycle traffic, and is designated as part of U.S. Bicycle Route 95. Recognized by the American Society of Civil Engineers as one of the Wonders of the Modern World, the bridge is one of the most internationally recognized symbols of San Francisco and California.
Renfrewshire is one of the 32 council areas of Scotland.
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The Humber Bridge, near Kingston upon Hull, East Riding of Yorkshire, England, is a 2.22 km single-span road suspension bridge, which opened to traffic on 24 June 1981. When it opened, the bridge was the longest of its type in the world; it was not surpassed until 1998, with the completion of the Akashi Kaikyō Bridge, and is now the twelfth-longest.
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Erskine is a town in the council area of Renfrewshire, and historic county of the same name, situated in the West Central Lowlands of Scotland. It lies on the southern bank of the River Clyde, providing the lowest crossing to the north bank of the river at the Erskine Bridge, connecting the town to Old Kilpatrick in West Dunbartonshire. Erskine is a commuter town at the western extent of the Greater Glasgow conurbation, bordering Bishopton to the west and Renfrew, Inchinnan, Paisley and Glasgow Airport to the south. Originally a small village settlement, the town has expanded since the 1960s as the site of development as an overspill town, boosting the population to over 15,000. In 2014, it was rated one of the most attractive postcode areas to live in Scotland.
The West Gate Bridge is a steel, box girder, cable-stayed bridge in Melbourne, Victoria, Australia, spanning the Yarra River just north of its mouth into Port Phillip. It carries the West Gate Freeway and is a vital link between the Melbourne central business district (CBD) and western suburbs, with the industrial suburbs in the west, and with the city of Geelong 80 kilometres (50 mi) to the south-west. It is part of one of the busiest road corridors in Australia. The high span bridge was built to allow large cargo ships to access the docks in the Yarra River.
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Inchinnan is a small village in Renfrewshire, Scotland. The village is located on the main A8 road between Renfrew and Greenock, just south east of the town of Erskine.
Bishopton (/bɪʃəptən/) is a village in Renfrewshire, Scotland. It is located around 2 miles (3 km) west of Erskine.
The city of Glasgow, Scotland has a transport system encompassing air, rail, road, and an underground light metro line. Prior to 1962, the city was also served by trams. Commuters travelling into Glasgow from the neighbouring local authorities of North and South Lanarkshire, Renfrewshire, East Renfrewshire, and East and West Dunbartonshire have a major influence on travel patterns, with tens of thousands of residents commuting into the city each day. The most popular mode of transport in the city is the car, used by two thirds of people for journeys around the city.
The Clyde Tunnel is a crossing beneath the River Clyde in Glasgow, Scotland for road traffic, cyclists and pedestrians. Two parallel tunnel tubes connect the districts of Whiteinch to the north and Govan to the south in the west of the city.
The M898 motorway is a 1-mile (1.6 km) motorway in Renfrewshire, Scotland. It is a spur route from the M8 motorway towards the Erskine Bridge. It lacks hard shoulders along its length. Its northern terminus comes at the junction with the A726 road, the former location of the toll booths for the Erskine Bridge, which were removed on 1 April 2006.
The A726 road in Scotland is a major route with several distinct sections with different characteristics and names; owing to its stages of construction, since 2005 it has two separate parts, the first running between Strathaven in South Lanarkshire and Junction 5 of the M77 motorway south of Newton Mearns in East Renfrewshire via East Kilbride, and the other running between Junction 3 of the M77 and the M898 motorway near the Erskine Bridge, via Paisley and Junction 29 of the M8 motorway near Glasgow International Airport.
The A727 road in Scotland runs from East Kilbride in South Lanarkshire, through East Renfrewshire, to Junction 3 of the M77 motorway in Glasgow.
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Renfrew is a town 6 miles (10 km) west of Glasgow in the west central Lowlands of Scotland. It is the historic county town of Renfrewshire. Called the "Cradle of the Royal Stewarts" for its early link with Scotland's former royal house, Renfrew gained royal burgh status in 1397.
Events from the year 1971 in Scotland.
Erskine Ferry sailed across the River Clyde from Erskine to Old Kilpatrick. The ferry was also referred to as East Ferry of Erskine as there was another ferry to Dumbarton a few miles down river, known as West Ferry. It is reputed to be the oldest ferry crossing of the Clyde. The crossing was part of the A740 route from Paisley to Old Kilpatrick. It was established in 1777 and replaced by the Erskine Bridge in 1971.
Donald's Quay was once the location of the northern terminus of the Erskine Ferry then run by Lord Blantyre of Erskine House that provided foot passengers with a crossing of the River Clyde, giving direct access between Dunbartonshire and Renfrewshire. At some point in the early 19th century the northern terminus of the Erskine Ferry moved to a site closer to Old Kilpatrick and opposite the Ferry House at Erskine, before closure in 1971 when the Erskine Bridge was completed. Donald's Quay once had an approximately 170-foot-long (52-metre) stone pier that was used by coal boats that transferred their loads into canal barges on the Forth & Clyde Canal at Ferrydyke Wharf and thereby avoided paying fees at the Bowling Basin. The quay was demolished during the construction of the Lanarkshire and Dumbartonshire Railway in 1896.
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