I have 30 feet long on driveway side and 40 feet long in the back yard that needs to be dug up and hauled away ( it's probably alot of clay)? I believe it's about 65 yards at 8 feet down, 3 feet out but I'm not sure how far out you need to go. And how much will pea gravel and sand be to buy and back fill? When everything is dug out, I will need to jack up my house and jack the 2 walls back in place and then fix the drain tiles if needed, tar and fix cracks before back filled. Might have to be a mini excavator.
when I had my french drain dug out around my back wall they said something about not exposing too much of the foundation as it will not be supported by the soil that used to be against it. sounds like you have a heck of a project, just thought this might be one thing to consider before you dig out too much at once.
theyll be charging you by the hour for this job.some hand shoveling involved in this job. Pipes?W/ires? who knows what might be in there.