I know what you're talking about, Steeltown.
If you look at this picture you can see little circles on either side of the bridge... I believe those are indicating that there will be decorative poles at tne entryways.
EDIT: Take a look at the bridge in
http://www.mcmasterinnovationpark.ca/sustainable.pdf
http://www.mcmasterinnovationpark.ca/open_public.pdf
You can see the poles.