|OS grid reference|
|Maintained by||National Highways|
|Design||twin deck box girder bridge|
|Total length||1,033 m (3,389 ft)|
|Height||20 m (66 ft) (to upper level)|
|Longest span||50 m (160 ft) (20 spans)|
|Clearance above||10 m (33 ft) (on the A631)|
|Clearance below||10 m (33 ft)|
|Construction start||Spring 1965|
|Opened||25 March 1968 (lower deck) |
19 October 1968 (upper deck)
|Daily traffic||100,000 vehicles/day|
Tinsley Viaduct is a two-tier road bridge in Sheffield, England; it was the first of its kind in the United Kingdom. It carries the M1 and the A631 for a distance of 3,389 feet (1,033 m) over the Don Valley, from Tinsley to Wincobank, also crossing the Sheffield Canal, the Midland Main Line and the former South Yorkshire Railway line from Tinsley Junction to Rotherham Central. The Supertram route to Meadowhall runs below part of the viaduct on the trackbed of the South Yorkshire Railway line to Barnsley.
The lower deck of the viaduct was opened in March 1968 million. The structure is unusual in that it is built as steel box girders, at a time when most long span bridges were being built of post-tensioned concrete deck design. The use of steel allowed a significant cost saving over alternative methods, but became controversial following two disasters involving steel bridges in 1970 (the West Gate Bridge in Australia and the Cleddau Bridge in Wales) and another in 1971 (the Koblenz South Bridge in Germany). Fifty-one people were killed in these failures, leading in the UK to the formation of the Merrison Committee. The report of the Merrison committee resulted in the temporary closure of two of the carriageways on the lower deck and two on the upper deck, the installation of extra steel strengthening bands around the bridge's support columns and other works which were completed in 1983. A further programme of strengthening was completed in 2006. The recent work to strengthen the bridge was a very complex operation, with a lot of the work happening inside the box beam spine. The works took over 3 years and cost £82 million (nearly 9 times the original bridge building cost, adjusting for inflation). The strengthening project won the British construction industry's Major Project Award in 2005.and the upper deck, carrying the M1, on 19 October 1968. The build cost was £6
Although originally designed to carry a dual 3-lane motorway on the top deck, during and subsequent to the strengthening work the M1 was reduced to 2 lanes following an EU directive on load bearing capacity to allow for the introduction of 40-tonne trucks in the UK. This arrangement allowed the third lane in each direction to join from Junction 34 to make the busy junction safer.Since the opening of the M1 junction 32 to 35a smart motorway scheme in January 2017, the viaduct once again carries 3 lanes of traffic plus hard shoulders in each direction.
The viaduct is balanced on rollers to allow for thermal expansion and contraction, and the route weaves slightly in order to make its way past obstacles. The viaduct, due to its construction, is very flexible. Movement may be felt on the lower deck as the traffic passes overhead. The Meadowhall Shopping Centre lies in the valley to the west; to the east is the Blackburn Meadows sewage works and new biomass power station.
The viaduct is one of Sheffield's most prominent landmarks, and was once made all the more so by the adjacent pair of cooling towers that were left standing for safety reasons after the demolition of the Blackburn Meadows Power Station. The cooling towers were a major point of contention over the years and were once saved from destruction only after being chosen as a nesting site by a rare bird.[ citation needed ] More recently, plans were made to turn them into a piece of public art. Other plans for the towers included concert halls, skate parks and a theme park.
Their iconic status, and the possibly prohibitive costs of demolishing the towers safely, until recently looked to have cemented their status in Sheffield's future as much as they were a part of its history, until the owner of the towers (and the now-demolished power station), E.ON UK, stated its intention to demolish them once the strengthening of the viaduct made it feasible.
The 250 feet (76 m) towers were demolished at 03:00 BST on 24 August 2008, though a significant portion of the north tower remained standing for a short while. The demolition attracted widespread attention. A viewing platform was set up so the public could watch the demolition. Part of the site has been converted for use as a biomass power station by the owners E.ON UK.
The Tinsley Viaduct is featured among several other locations as the site of "ground zero" for a fictional Soviet Union nuclear strike on Sheffield depicted in Threads (1984), a depiction of what might have happened had NATO and the Soviet Union entered conflict over hypothetical instability in Iran that escalated into full nuclear war. In the ensuing nuclear exchange, a one-megaton nuclear missile explodes above the Tinsley Viaduct, devastating most of surrounding Sheffield.
The River Don is a river in South Yorkshire and the East Riding of Yorkshire, England. It rises in the Pennines, west of Dunford Bridge, and flows for 69 miles (111 km) eastwards, through the Don Valley, via Penistone, Sheffield, Rotherham, Mexborough, Conisbrough, Doncaster and Stainforth. It originally joined the Trent, but was re-engineered by Cornelius Vermuyden as the Dutch River in the 1620s, and now joins the River Ouse at Goole. Don Valley is a UK parliamentary constituency near the Doncaster stretch of the river.
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Meadowhall Interchange is a transport interchange located in north-east Sheffield, consisting of a combined heavy rail station, tram stop and bus and coach station. The second-busiest heavy rail station in the city in terms of passenger numbers, Meadowhall Interchange provides connections between National Rail services, the Sheffield Supertram light rail network, intercity coach services and the city bus network.
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The Severn Bridge is a motorway suspension bridge that spans the River Severn between South Gloucestershire in England and Monmouthshire in South East Wales. It is the original Severn road crossing between England and Wales, and took three and a half years to build, at a cost of £8 million. It replaced the 137-year-old Aust Ferry.
Transport in Sheffield, England is developed around the city's unusual topography and medieval street plan. Once an isolated town, the transport infrastructure changed dramatically in the 19th and 20th centuries. The city now has road and rail links with the rest of the country, and road, bus and trams for local transport.
Tinsley railway station was a railway station in Sheffield, South Yorkshire, England, opened in March 1869. This station was designed by the company architect John Holloway Sanders. The station served the growing community of Tinsley and the workers at the nearby steelworks which had moved to or had been founded in the lower Don Valley following major changes in manufacturing methods in the mid - late 19th century. The station, opened by the South Yorkshire Railway, was built on the line between Sheffield Victoria and Barnsley and became a junction station with the opening of the line from Tinsley Junction to the original Rotherham station by the Manchester, Sheffield and Lincolnshire Railway. The station was located by the main Sheffield to Rotherham road in Tinsley, now on the Sheffield side of M1, Junction 34 in Tinsley.
Wincobank railway station, previously named Wincobank and Meadow Hall, was a railway station in Sheffield, South Yorkshire, England. The station served the communities of Brightside and Wincobank and was situated on the Midland Main Line on Meadowhall Road, lying between Holmes and Brightside stations. There were no platforms on the Midland Railway line to Barnsley at the original Wincobank station. This was remedied when Meadowhall Interchange was later built on roughly the same site.
Meadowhall and Wincobank railway station—also known in the 19th century as Meadow Hall at the time of the Meadow Hall Iron Works—was a railway station on the South Yorkshire Railway near Sheffield, England.
The Blackburn Brook is a stream in Sheffield, South Yorkshire, England which flows through the Blackburn Valley along the M1 and Ecclesfield Road and joins the River Don near the Meadowhall shopping centre. Downstream from the A61 road at Chapeltown the Blackburn Brook is defined as a main river by the Environment Agency, which requires new building development to be at least 26 feet (8 m) from the bank side as a flood defence measure and to allow access to the watercourse for maintenance.
The Medway Viaducts are three bridges or viaducts that cross the River Medway between Cuxton and Borstal in north Kent, England. The two road bridges carry the M2 motorway carriageways. The other viaduct carries the High Speed 1 railway line. All three bridges pass over the Medway Valley Line.
The A6178 is a 4 digit A road in South Yorkshire, England. It begins in the Lower Don Valley area of Sheffield, at a junction with the A6109. The road heads northeast, crossing the River Don before passing through Attercliffe. The road passes a junction with Staniforth Road before passing the Don Valley Bowl, IceSheffield, the English Institute of Sport and the historic Hill Top Chapel. The road meets a junction with the A6102 at Carbrook, before continuing northeast as Attercliffe Common passing Valley Centertainment and the South Yorkshire Police headquarters. The road passes a number of car dealerships including Porsche and Mercedes before meeting the entrance to the Meadowhall Shopping Centre.
Sheffield Inner Ring Road is a dual-carriageway circling central Sheffield, South Yorkshire, England. Marked up as the A61 all the way around, it was built from the 1960s onwards. The Ring Road connects to the Sheffield Parkway, which itself connects with the M1 motorway. Many of Sheffield's current and under construction major office premises and luxury apartments are located on the Ring Road.
The Newmarket Viaduct is a seven-lane state highway viaduct in Auckland, New Zealand. The 700 m long viaduct, which is up to 20 m high, carries the Southern Motorway over the Newmarket suburb.
The River Don Navigation was the result of early efforts to make the River Don in South Yorkshire, England, navigable between Fishlake and Sheffield. The Dutch engineer Cornelius Vermuyden had re-routed the mouth of the river in 1626, to improve drainage, and the new works included provision for navigation, but the scheme did not solve the problem of flooding, and the Dutch River was cut in 1635 to link the new channel to Goole. The first Act of Parliament to improve navigation on the river was obtained in 1726, by a group of Cutlers based in Sheffield; the Corporation of Doncaster obtained an Act in the following year for improvements to the lower river. Locks and lock cuts were built and by 1751 the river was navigable to Tinsley.
The A631 is a road running from Sheffield, South Yorkshire to Louth, Lincolnshire in England. It passes through the counties of South Yorkshire, Nottinghamshire and Lincolnshire. The road has many towns on its route including Rotherham, Maltby, Gainsborough and Market Rasen. It is mostly single road throughout its length but has some stretches of dual carriageway as well.
Blackburn Meadows is an area of land just inside the Sheffield city border at Tinsley, England. It became the location of the main sewage treatment works for the city in 1884, and is now one of the largest treatment works in Britain. The treatment process was rudimentary, with sludge being removed to ponds and then to drying beds, after which it was used as manure or transferred by rail to a tip at Kilnhurst. The works progressively expanded to improve the quality of effluent discharged to the River Don and was a pioneer in the use of bio-aeration, following experiments by the works manager during the First World War. This process became known as the "Sheffield System", and was demonstrated to visitors from Great Britain and abroad. Despite these improvements, ammonia levels in the river below the works were high, and fish populations did not survive.
Tinsley is a suburb of north-eastern Sheffield, South Yorkshire, England; it falls within the Darnall ward of the city.
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Bus Rapid Transit North is a bus rapid transit scheme introduced by the South Yorkshire Passenger Transport Executive in England. It consists of one route operated by First South Yorkshire between Sheffield and Rotherham.