https://dailyhive.com/vancouver/lougheed-transit-corridor-area-plan-maple-ridge-translink-brt
The Golden_Ears_Bridge should have been built with 2 wide shoulders, which could have eventually become 2 bus lanes. https://en.wikipedia.org/wiki/Golden_Ears_Bridge
The Pitt_River_Bridge also should have had 2 wide shoulders, so that they easily could have become bus lanes.
https://en.wikipedia.org/wiki/Pitt_River_Bridge
Most of the existing bridges are too narrow, so there needs to be a regional framework of bus-bridges.