Tarmac Tales: How roads work in the wet

Now that Sydney is slowly drying out from the absolute drenching we’ve had in the last week, the roads are following suit. But have you ever wondered why roads get flooded in the first place and how they cope?  A senior road engineer (who also happens to be the father of a 2SER volunteer), Jim Mahood; called in to the show to help provide an explainer on how roads can wash away.