mbedle
Well-known member
I would guess that the drive at the bottom of the mountain is set with a gravity footer, given that bedrock is most likely deeper in the valley. The towers don't have the same direction or amount of force that the return had applied to it. Force on towers is mostly down at the angle of the slope (An engineer can correct me on that). Also, I would assume that a large portion of the towers are set with footers and not anchored to just bedrock. The bigger concern, I would think, is the Locke lift return. Same situation and installed only a couple of years later. Key to this is determining why the grout failed. Did it fail on its own or because of some outside influences? If that grout failed on its own and the same grout was used on the Locke lift, that going to be an big issue.