The civil engineers had been a tad unhappy with the road overbridge at Corrieshalloch; probably something to do with a number of non-finescale diesel locomotives getting wedged under it. A quick check of the gauge confirmed what I had suspected: when it was glued down it was somehow pushed down too much, and there was insufficient clearance even for scale rolling stock. There was no option but to rip it up again, so on Monday I finally plucked up the courage to do so. (There is definitely something of the "two steps forward, one step back" about my modelling.)
First is a photo with the bridge removed. I took the opportunity to widen the hole in the sky, in an effort to make its edges less prominent. I also painted these black rather than white, although I will probably settle for a shade of grey as melding into the background better. Unfortunately, I had plastered in around where the bridge joined the landscape, so some cutting and chipping away of plaster was necessary.
Next picture shows the modified bridge back in place (though not fixed down yet). It was a simple matter to raise it up a bit, although I will need to touch up the paint on the bottom edges. I took the opportunity to add the other parapet, which I had been too lazy to do at the outset. This will need painting too, and I will also have to touch up the joins in the (polyfilla + PVA) road surface. However, I can now run converted N-gauge locos without them getting stuck!
The backscene at this end of the layout may also receive some more attention - it has been suggested that it would be more aesthetically pleasing if the hills here had a little more height, so I will ponder it. There is also a bit of a join between road and sky that will need disguising better.