Can I get away with 1:1 slopes for a 30' excavation to build a manhole, or will I have to go to 1 1/2:1?. The material is a sandy clay, I am sure a 1:1 would hold but am not sure of the legal aspect
Looking for information on software using cad files. This is new to us and we are renting the GPS units for the equipment, but we don't know how to make the the files. Someone has said to use Auto Cad but it seems there are several types of Auto Cad. Any help would be appreciated.