• Iron Bridge, Shropshire

    Image ID
    FOT652441
    Rights
    RM Rights Managed
    Image Details
    Image File Attributes
    4.3 MB
    JPEG
    Image Dimensions
    2067 x 2800 px
    Image Print Size (at 300 ppi)
    175 x 237 mm
    6.9 x 9.3 in
    Visual Size @300ppi
    Keywords
    ironbridge historical Darby iron bridge telford industrial revolution Shropshire river Severn gorge
    Description
    The Iron Bridge crosses the River Severn at the Ironbridge Gorge, by the village of Ironbridge, in Shropshire, England. It was the first arch bridge in the world to be made out of cast iron, a material which was previously far too expensive to use for large structures. However, a new blast furnace nearby lowered the cost and so encouraged local engineers and architects to solve a long-standing problem of a crossing over the river. Being the first of its kind, the construction had no precedent; the method chosen to create the structure was therefore based on carpentry. Each member of the frame was cast separately, and fastenings followed those used in woodworking, such as the mortise and tenon and blind dovetail joints. Bolts were used to fasten the half-ribs together at the crown of the arch. Very large parts were needed to create a structure to span 100 feet rising to 60 feet above the river. The largest parts were the half-ribs, each about 70 ft long and weighing 5.25 tons. The bridge comprises more than 800 castings of 12 basic types. The bridge was raised in the summer of 1779, and it was opened on New Year's Day 1781.
    Uploader
    David Siddons
    Contributor
    David Siddons
    Date Taken
    Unknown
    Uploaded on
    2010-02-25
    Collection
    Sylvan 2
    Category
    Heritage
    Sub Category
    Industrial
    Setting
    Outdoor
    Point of view
    Above camera
    Dominant colour
    #101010