The Evergreen_Point_Floating_Bridge in Seattle has 6 lanes.
https://en.wikipedia.org/wiki/Evergreen_Point_Floating_Bridge#Public_transportation
The William_R._Bennett_Bridge in Kelowna should have been designed to eventually have 6 lanes, plus 2 bus lanes, with a long-term provision for 2 Tram-Train or LRT tracks.
The sidewalk could be reconfigured into a 6th lane, but only if a bus, bike & train bridge was built next to it. Thus, this remains as another incomplete BC transportation crossing. A parallel bus & bike bridge would also have 2 footpaths & even 2 HOV lanes. Eventually, there should be something like a CTrain or G:link connecting Vernon, KELOWNA and Penticton. Unfortunatly, BC seems to want to excel in congestion planning.
https://www.drivebc.ca/mobile/pub/webcams/id/149.html
https://en.wikipedia.org/wiki/William_R._Bennett_Bridge#Construction_budget
https://www.google.com/maps/place/William+R.+Bennett+Brg
Somehow Australia is able to put more funding into building better infrastructure.
https://jfdatalinks.blogspot.com/search?q=Evergreen+Point+Floating+Bridge