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Norwood Road bridge


Will Vale

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There isn't going to be much in the way of elevation on this layout, and what there is is nearly all at the road bridge and embankment.

 

gallery_7119_994_65686.jpg

 

This has been quite tricky to research, since everyone seems to stand *on* the bridge and take pictures of locos for some reason :) The roadway and path are nicely visible on Google street view, and there are a couple of small pictures of the bridge itself on Flickr, taken on the open day I think. Unfortunately the photographer doesn't have larger versions available, although he was able to dig up useful a wider view which shows the wing wall:

 

http://www.flickr.com/photos/17889585@N03/1859050951/

 

http://www.flickr.co...N03/4705921484/

 

It looks like the abutments are some kind of dark engineering brick, but I can't really see. The central pillar has curved ends with coned tops which should be fun to build - at least I only have to do one :)

 

I don't have room for anything like the scale bridge, at least not without reducing the embankment to nothing, so some selective compression is in order. I widened the openings in the profile board to try and get a better sense of the (quite spacious) openings, and built a framework from foamboard. Dimensions are eyeballed from the photos.

 

gallery_7119_994_124294.jpg

 

 

The girder in the first picture is a bargain bucket stand-in. It's about the right length for my compressed bridge, but it doesn't have the features or geometry of the real thing, which has a flat base and bows up with the bridge deck. It's also completely different as regards the bracing. So I really want to scratchbuild one, but it depends if I have time or not. If I don't, I'll probably need to add some more depth at the very least. The good thing is that with the abutments more-or-less defined, I can build the embankment and trim the profile boards back.

 

In other news, I fixed a minor rail kink and ballasted the double slip in place. There are quite a few spots in the ballast where you can see edges resulting from multiple ballasting sessions, I suspect sanding or light remedial ballasting will cure these.

 

gallery_7119_994_55763.jpg

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Very neat Will. Can you infill the ballast ridges with layers of ballast dusting-over on top? But, then again, it's not too unprototypical as it is.. is it?

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I think it's pretty important to do some scratchbuilding, at least in the longterm, for the bridge girder work, to capture the essence of the prototype. It's coming together and I've begun to be able to picture what this looks like in real life now :)

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Jon, that sounds pretty good, I suspect a smear of PVA down the crack (oo er) and a sprinkle of ballast might do the trick.

 

Jamie, thanks for the reminder about geograph - it's one site I look at occasionally and then completely forget about. I couldn't find any Whitemoor bridge pictures there either, but it is full of useful Fenland stuff which will matter when I come to do the drain along the front of the layout. It does make me maudlin though, I get more homesick for the fens than I do Sheffield for some reason.

 

James, you're right of course. I'm just concerned about time, but I'm thinking maybe I can take some plastic and simple tools on holiday - I'm going to be away for three weeks of the remaining 60-odd days before the deadline :( One of the things about going away with small child in tow is that you tend to do a lot of sitting around in the evenings...

 

Working on the retaining wall at the moment, which is requiring some odd stuff to replicate the construction. Will post more once I've found out if it'll work or not :)

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