I have about a 2' wide area that the blocks are no longer supporting the slab. Basically the sidewalk was tilted toward house and water rested against the wall. I lifted the sidewalk, but not sure if I need to support the sale with new block. Is it okay to have the slab unsupported for that span?
And it is right at the center, where the steps lead to the porch. That will take the majority of the weight when people go onto the porch

Thanks for looking