I am assuming there is no suitable support from underneath overhang, only sand or soil.
One way would be to drive two spuds (heavy wall pipe) into the bottom at each corner of
overhang and fabricate supports which would weld to spud and anchor to bottom of overhang.
One support from each spud back towards crack,and one from each spud towards centerline of
overhang. Additionally, spuds could support stairs, a dock, or a mooring support. In addition,
crack needs to be chipped back to solid concrete, cleaned, and filled with expending grout.
Crack may have to be bridged with sheet steel, anchored into solid concrete. Of course all
steel will have to be coated or painted. Remember, legal consequences of
Lets get some facts so we know exactly what we are dealing with:
Overall size of slab, length, width, and thickness, to estimate load..
Size of overhang, length, width and thickness, to estimate unsupported load.
Does slab contain rebar? What size?
How high is bottom of slab above high tide level?
This will help us select size of structural elements.
What is the size of the budget?
