[dmuzika]

Originally Posted by 5seconds

Off the top of my head, I think that a 1A route through downtown would have been abandoned as a highway in the late 1950s, when the Trans-Canada was built along 16th ave.

The map below is from 1926, and shows in red the route you are describing. It used 10th street rather than 14th street north of the river, as the 14th street bridge wasn't built until the mid-1950s.

EDIT: It's entirely possible, probable even, that the 1A remained in use on central roads long after the 1 opened to serve as an alternative... I might look into that.

Thanks! The sign I was referring to is at https://goo.gl/maps/HpUdCuF9zEx.