This retaining wall is cinder blocks mortared together. A 10 section fell this winter. There's no drainage or gravel and I don't think there's a proper foundation.
The walls and house are 50+ years old. The house is approx 2K sq ft 2 story with 1K sq ft basement.
The retaining wall adjacent to the one that partially fell is 4' everywhere but looks plumb and sound, but if I dump dirt as a slope behind the wall that fell, I'll dump dirt behind both walls for support. The one that partially fell has been unplumb about 6" for years I'm guessing, so whatever didn't fall is leaning.
The image shows plus or minus 2' estiamted distances that the walls are from the building.
Does anyone know if it's not okay for the sake of the house foundation etc to just get dirt dumped behind the retaining wall that partially fell rather than replacing the whole wall or even re building the collapsed part with new block and mortor and leaving it 6" leaning without excavating and adding gravel and drainage? Again, it's only 4 feet max and I would compact the dirt and have it go up to 15' out from the broken wall.
Also, I was going to put a fence in front of the wall that fell (for safety reasons since it was a 4' ledge), so if I fill it as a dirt slope, would it still require a safety fence? The non-broken plumb wall has a chainlink already.