It looks like that is going to take more than a dust pan and brush to clear up, and to make the area safe again is going to take some doing.

Here are a couple of shots taken of the scene.



This one seems to reveal the starting point which has left a large void.



Those boulders are slightly on the large side !!



Are their small towns, local services nearby ? It could have a big impact on those who rely on the Interstate to keep their business running.