Here are the two largest interchanges u/c in Metro Vancouver right now
The very impressive Cape Horn interchange where the #1 meets Lougheed highway, United Blvd. and the Mary Hill bypass.
I hope this image isn't too large for some of you. I would bet this will be the largest interchange in western Canada when done, especially in regards to traffic volume.
Here are some pics of it being built:
And this is probably the second largest, it just started construction, where the new SFPR meets the #99.
all pics are my own