Dirt is flying! Narrator: If you've driven any one of the many highways crisscrossing the world, chances are you've seen one of these: a truck escape ramp. Some escape ramps slope upwards.

A driver in Colorado managed to capture the moment when a truck driver narrowly maneuvered his out-of-control semi onto a runaway truck ramp ... and a 7% downhill grade,” CDOT’s post warned.

Dirt is flying! Narrator: If you've driven any one of the many highways crisscrossing the world, chances are you've seen one of these: a truck escape ramp. Some escape ramps slope upwards.