dileTTante wrote: ↑Sat Jun 19, 2021 8:22 pm
An exception might be the trestles at the southern end of the Fraser River crossing, south of Vancouver British Columbia. The rail line goes from Vancouver to Seattle Washington. (Canadian National and BNSF) I have crossed it on Amtrak many times. One photo, looking south, shows the northern end at New Westminster, which is the municipality in south Vancouver. This wye approach is a sharp curve taken very slowly, and is steel construction. The river crossing is a swing bridge. The trestles form another wye (I think) across the flat land by the river.
There are probably other photos but I don't know the best terms for searching.
- Terry C
I had forgotten about those trestles.
Although technically they are on the main lines, I suspect that they are treated as yard limits.
They carry heavy trains, slowly.
Compared to the trestle on the TT layout, they are massively overbuilt and not very high.
If it was not for the tracks and roads under them, they would have been filled in years ago.
Going south, the track splits three ways off of the Fraser River bridge; CN to the left(East), BNSF to the right (West), and Southern Rail to the South.
As well as CNR, BNSF and SRY; Amtrak, Rocky Mountaineer, The Canadian, and occasional CPR trains use the bridge/trestle combination.
If the bridge or trestles were to be out of service for any reason, the next closest river crossing is the CPR bridge at Mission, 50km+ upstream.