I've got a retaining wall made from 6"x6" timber that is falling in. It would appear that when it was built there was no backfill and now the wood is rotting. Unfortunately, it's supporting part of my deck, and the part that's falling in is pretty close to a deck post.
I was thinking about digging out sections of the garden supported by the wall and doing a more gradual tiered approach instead, probably with stone or blocks.
Is this a bad idea? Can the wall be compromised by removing dirt from adjacent parts? Is there a better approach? Is it a huge project? Am I insane?