One guy was out there in the winter on a nice weekend and the ice jammed up while he was sleeping water and ice came up enough he was stranded out there, needed to be rescued. His vehicle stayed there all winter and spring.
You could go on the road between Riverview Campground and Westend Husky station. About half way there is a little road that takes you right down to the river.
Only caution is occasionally the river levels go up and down with river flows and if they open the dam up.
Yes you can do it on dirt bikes (especially the section from Saunders to Nordegg). That section is primarily developed pretty good , there is a new section just built (may not even be completed yet) tp keep us on the south side of the hwy. the rest from Saunders east towards Rocky is pretty...