A 10 lane bridge could have been completed last year, but this guy was against it. The new 8 lane tunnel isn't expected to be completed until at least 2030.
Unlike backwards BC, Queensland was able to twin or duplicate the 6 lane Sir_Leo_Hielscher_Bridge.
https://en.wikipedia.org/wiki/Sir_Leo_Hielscher_Bridges#Design
https://en.wikipedia.org/wiki/Sir_Leo_Hielscher_Bridges#Duplication
https://www.mageba-group.com/de/en/1023/Australia/Australia/19745/Gateway-Bridge.htm
https://en.wikipedia.org/wiki/Gateway_Motorway (Brisbane)
https://en.wikipedia.org/wiki/Gateway_Program_(Greater Vancouver) Of course the BC version was watered down.
https://en.wikipedia.org/wiki/Port_of_Brisbane#Transport_links
