Using the telephones like poles in a pole building?
Can you post a sketch of what you're trying to do?
That is smart. How do you intend to use the telephone poles to build a retaining wall?
Retaining the soil is smart. How do you plan on using the telephone poles to do this?
Ok. This is like a soldier pile and lagging shoring. I can do the entire design of this as a premium service. I will need information about the soil.