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Tubular bridge
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==Other bridges== The unconventional nature of the tubular girder bridge was not widely accepted. [[Sir John Fowler, 1st Baronet|John Fowler]]'s 1847 tubular girder design for [[Torksey]] used tubes that were only 10 foot high and placed the railway deck between them, rather than inside.<ref>{{Cite web |title=John Fowler's Viaduct at Torksey |url=https://www.flickr.com/photos/tatraskoda/4397454463/in/photostream/ |author=Tatraskoda |date=27 February 2010 |publisher=[[Flickr]] }}</ref> This is now considered as the first [[box girder bridge]], rather than a pure tubular bridge.<ref>{{Cite web |title=Torksey Bridge |url=http://www.transportheritage.com/find-heritage-locations.html?sobi2Task=sobi2Details&catid=19&sobi2Id=123 }}</ref> Despite this, it was initially rejected after completion by the [[Board of Trade]]βs inspector, [[Lintorn Simmons|Captain Lintorn Simmons]], and the design was also criticized by the [[Institution of Civil Engineers]].{{sfnp|Chrimes|1991|pages=37β38}}<ref name="FR, Torksey" >{{Cite web |title=Torksey Viaduct |url=http://www.forgottenrelics.co.uk/bridges/gallery/torksey.html |publisher=Forgotten Relics }}</ref> When the bridge was strengthened in 1897, this was done by added a central truss above the deck rather than by strengthening the box.<ref name="FR, Torksey" />
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