I have put up some images including two of bridges, one of which is where the 1st edition OS map shows the Tramroad passing under the GWR at Scorrier at a skew, and another similar spot further east, not skewed. The map does not show a line at this second spot, but does give a significant indication that a branch or loop of the line MIGHT have passed through here at some time. This line joins the course of the tramroad at tangents both ends. Is anyone any the wiser about this second bridge? It does seem odd that the line as shown by the OS is a signifcant diversion from the more direct route which the second bridge might represent.