Start with conditions, not a product
Support work on Charleston's soft ground has to reach past the compressible pluff mud to something that can actually bear load long-term, which usually means going deeper than a comparable job on ordinary clay or sand.
Build a complete scope
- What was measured, and whether the ground is original or filled marsh
- Whether the structure is historic masonry, a raised pier house, or slab
- Whether the scale of work triggers floodplain elevation requirements
- Whether preservation review applies to anything that becomes visible
- Access on a constrained lot, restoration afterward, and warranty terms
Charleston pier and support context
Because marsh sediment keeps consolidating under sustained weight, pier depth and spacing decisions near Charleston often carry more margin than they would somewhere with firmer native ground.