JAE,
Thank you very much for your thoughtful input. Yes, that is basically what I did. I just thought that a 3.5' diam x 14' pier was too big for a simple open pole building, where a little settlement would matter little anyway.
I since spoke in depth with a Geotech Engr who said it is...
JAE,
That is what I did in my 4th paragraph. Unless I get a geotech report, I am only aware that I can increase my allow. brg. pressure by the soil overburden I am removing. This is where I think I am being too conservative, but dont know what else I can do.
I could drill the ftg. I need for...
I have a 34' X 120' pole building, where my client wants posts at 40' spacings. I designed non-constrained footings for lateral loads no problem.
However, what started as a 2' diam X 7' deep auger cast footing for lateral loads, has grown to a 3.5' diam. X 14' deep ftg. for vert. load. 3'...
