At Blea Moor, through, at Rise Hill, over. But the photos I'm looking at are of different date - 1960s, 1913 respectively. What's less clear is what happened at viaducts. Ref. Anderson & Fox, Stations and Structures of the Settle and Carlisle Railway (OPC, 1986). For the transition at the northern end of Blea Moor tunnel, see Plate 55.

Thanks for your response.

I've looked at my A&F book and plates 55 (and 54) do show the pole route ending at the Northern end of Blea Moor Tunnel. I understand the wires are then routed into wooden trunking through the tunnel. I'm still looking for a more detailed picture of how that transition from pole to wooden troughing is achieved.

My layout has a tunnel at each end, so I might look to have one tunnel with a pole route over the top and the other tunnel with a pole route through the tunnel....best of both worlds!

Cheers