You must not drive on the left half of the roadway when you are

You must not drive on the left half of the roadway when you are 1) approaching the top of a hill or on a curve; 2) approaching within 100 feet (30.5 meters) of or passing through an intersection or railroad crossing; or 3) approaching within 100 feet (30.5 meters) of a bridge or tunnel and you are unable to see vehicles coming from the opposite direction.