Start with conditions, not a product
Pier depth and spacing near Wilmington depend on how deep the sandy load-bearing layer sits below a water table that shifts with tides and storms alike.
Build a complete scope
- What was measured, and whether the shallow water table is implicated
- Whether sandy soil has been washed out from under a footing or slab
- Whether the parcel's flood history bears on the repair being proposed
- The method selected and the alternatives considered against it
- District review if the work becomes visible, restoration, and warranty
Wilmington pier and support context
Because the water table near the Cape Fear River can rise for days after a heavy system, support work here often needs a different depth and spacing plan than an inland job would.