A viaduct takes shape.
Entry posted by Dave John
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I have been pottering on with the viaduct. Most of the formwork is in place so I have begun to work on the details and cladding. The original had lines cast into the concrete to simulate stone courses, these were at just over a foot spacing. My initial thought was to scribe these but whilst digging in the bits of plasticard box I found some slaters 4mm planking slaters. This is not specifically 4mmm sclae, it is planking 4mmm wide. I stuck a bit on and squinted at it from various angles, yep it does look right. More duly ordered.
The arches themselves seemed to be a single concrete casting, with just a half round concrete decoration. A few tests showed it it hard to bend 2 mm half round, but 1 mm quarter round bends into place nicely. So, only ten of those to make.
The bridge section is a mix, upper half came from the old layout, the new girders are made up from signmaking styrene with varigirder bits on the outside. It will have a central pier. 
A couple of general warts and all pics of the whole thing. 
I still haven’t got round to cleaning the windows…..
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