Ah, the bizarreness of Calgary.
Saw a sign yesterday: public information meeting on the Stoney Trail pedestrian overpass.
Near as I can tell, there's a plan to build a pedestrian overpass that crosses Stoney north of Crowchild, between Royal Oak and Arbour Lake. I've seen this sort of thing before (across Sarcee, for instance), and always think "hey, a bridge to nowhere!".
I guess this is an attempt to link suburban communities. I just never actually see anyone using them, because, well, it's just a way to walk from one random suburban street to another.