https://en.wikipedia.org/wiki/Second_Narrows_Rail_Bridge#Original_bridge_(1925) This is a smaller bridge than what was originally planned. Of course, that's the backwards BC way.
https://www.nsnews.com/in-the-community/time-traveller-the-first-second-narrows-bridge-1925-3118875
https://www.northshoreheritage.org/blog/2023/11/23/bridge-over-burrards-water
https://searcharchives.vancouver.ca/second-narrows-bridge-vancouver-b-c-opened-november-7th-1925-2
https://search.nbca.unbc.ca/index.php/second-narrows-bridge-in-vancouver-bc-6
https://en.wikipedia.org/wiki/Second_Narrows_Rail_Bridge (1969)
https://en.wikipedia.org/wiki/Thornton_Tunnel#History Unfortunatly, the new tunnel & bridge weren't designed to be wide enough to eventually accommodate a parallel track. Thus, N. Vancouver & Vancouver are still in the single track crossing trap, just like NW & Surrey are.
https://jfdatalinks.blogspot.com/search?q=old+and+new+narrow+bridges