Unfortunatly, backwards Vancouver planning didn't allow for 2 very wide sidewalks on the Cambie_Bridge.
https://vancouver.ca/streets-transportation/cambie-street-bridge-upgrades.aspx
While the current bridge is a great improvement from the previous Cambie_Bridge, there still wasn't enough interest or motivation to really have an adequate bridge. A 5 lane bridge with only 1 wide sidewalk is too half-assed. Due to Vancouver's inability to properly plan & build for the future, the once 6 lane Cambie_Bridge only has 5 lanes & still has a narrow sidewalk on its west side.
https://upload.wikimedia.org/wikipedia/commons/f/fd/Cambie_Br_in_1986%2C_street-level_view.jpgIf this sidewalk can ever be built out to be much wider, then the bridge can have 2 proper bike lanes, as well as 2 sidewalks. Then the bridge could have all 6 lanes again. A 6 lane bridge makes it easier to accomodate 2 bus lanes.
https://jfdatalinks.blogspot.com/search?q=Cambie+Street+Bridge