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  • Silver Jubilee Bridge
    views: 40 / posted byvladimir 6 октября 2009


    The Silver Jubilee Bridge crosses the River Mersey and the Manchester Ship Canal at Runcorn Gap between Runcorn and Widnes in Cheshire, England.


    Photo 1, Silver Jubilee Bridge, England


    Photo 2, Silver Jubilee Bridge, England


    Silver Jubilee Bridge


    Other name(s)                              Runcorn Widnes Bridge


    Carries                                          Road traffic and pedestrians


    Crosses                                         River Mersey Manchester Ship Canal


    Locale                                           Runcorn Gap between Runcorn and Widnes


    Designer                                       Mott, Hay and Anderson


    Design                                          Compression arch suspended-deck bridge


    Material                                        Steel


    Total length                                  1,582 feet (482 m)


    Width                                            54 feet (16 m)


    Height                                           285 feet (87 m)


    Longest span                                1,082 feet (330 m)


    Number of spans                           1


    Beginning date of construction    25 April 1956


    Opening date                                21 July 1961


    Photo 3, Silver Jubilee Bridge, England


    It is a compression arch suspended-deck bridge (or through arch bridge) which was opened in 1961 and widened in 1975–77. It carries the A533 road and a cantilevered footway. The bridge is a grade II listed building.


    Photo 4, Silver Jubilee Bridge, England


    History 


    Until 1868, when Runcorn Railway Bridge was opened, the only means of crossing the Mersey at or near Runcorn Gap were by fording or by ferry. Before that the lowest crossing of the river had been the road bridge at Warrington. The first bridge to carry vehicular traffic across Runcorn Gap was the Widnes-Runcorn Transporter Bridge which opened in 1905. This was an inefficient means of transport and it had become inadequate for the amount of traffic using it before the outbreak of the Second World War. In 1946 the Ministry of Transport agreed that the transporter bridge should be replaced when sufficient funds were available. Mott, Hay and Anderson were appointed as consultant engineers.


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