ant no box blade doing that!
I think I would be cutting a ditch on the edge of the road and using the dirt to elevate the road base. I would think that water running down the upper side would need somewhere to go. So I would angle the leading edge forward on the ditch side and tilted down to form a ditch throwing the dirt up on the roadbase to help build the crown.
Throwing the dirt against the bank as in your picture would seem to trap the water on the road.