I have ridden 80% of it. From St John's to Paradise it is not legal and from Paradise to Conception Bay South it is a PITA with crosssroads and such but from Holyrood to Corner Brook it is free running. The TCH incorporated it from Steady Brook alongside the Humber river. There is no police or monitoring presence and there has never been an incident that i am aware of with any vehicle. it is quite normal to see cars and pickup trucks as alot of cabins are incorporated alongside the old railway lines. Howley has a section that has been converted to a logging road as well as other communities that use it for access to specific areas.
It is a non issue. hope this helps
If I still had every dollar I spent on motorbikes I would be a richer man but a poorer person.