Polbrook Gurney Colliery update: Today I'm building a weighbridge, a common feature was the splitting of the line to allow trains to pass through without using the weighbridge. A hut which would have contained the measuring apparatus needs to be built, and will go top left of the split track. Here's a prototype example, though my control hut will be more rustic and smaller and be partially set back into the undergrowth.
http://www.flickr.com/photos/12a_kingmoor_klickr/5783179259/