BC bottleneck-chokepoint planning is out of control. This new bridge not only should have had 2 wide emergency lanes, 2 wide shoulders and especially 2 bus lanes, since the Skytrain isn't a 24 hour system. Congestive transportation planning is absurd and of no benefit to anyone. However, as a symbolic demonstration of a reluctance towards proper big-city infrastructure, its right on the mark for backwards BC. Of course the bridge wasn't designed for a future lower deck, because properly planning for the future is very difficult in backwater BC.
https://www.pattullobridgereplacement.ca/about/projectoverview/
https://en.wikipedia.org/wiki/Stal%CC%95%C9%99w%CC%93as%C9%99m_Bridge