Ontario Highway Traffic Act

Thanks for the responses. That's along the lines of what I was thinking. You're technically driving on a closed road when you cross it, but it's not likely to be a problem in the real world.

Just FYI, when Highway 21 is closed, it's usually between Port Elgin or Kincardine as a minimum, which is a 40 km stretch of road, and it's not unusual for it ...

Highway 21 is often closed in the winter. I and a lot of other people need to cross Highway 21 to get to work. Several people have told me that if a highway is closed, it's not only illegal to drive along the highway, but to cross it on any intersecting road, because while you cross it you're technically driving on a closed road.

Is this true?