We all want the quick fix. But on waterfront structures from Moncks Corner to James Island, some “repairs” are just money thrown in the creek.
Undermining band-aids
Dumping soil behind a bowed bulkhead without drainage? It’ll wash out again. You need pressure relief: weep holes, filter fabric, and gravel backfill (see Blog 14: Seawall Drainage 101).
Sheet piles not driven deep
If vinyl wall sheets don’t have enough embedment, the wall rotates. No surface add-on fixes depth (see Blog10). Depth is strength.
Horizontal wall too high
A high wall without proper tiebacks, bracing, or engineered headers/stringers becomes a sail. We see bowing in Charleston and Wadmalaw—often “frozen” with added tiebacks into undisturbed ground. Rebuilds are the other route, but they’re pricier.
What actually works:
- Drain the pressure (weep holes/fabric/#57 stone).
- Drive sheets and piles to spec.
- Add tiebacks where loads demand it.
- Rebuild failed sections the right way rather than layering cosmetics.
Charleston Dock Doctors LLC does a lot of forensic repair—and we’ll tell you when to stop patching and fix the root problem. If you’re seeing leaning pierheads, sinking deck boards, or bowing walls from Folly Beachto Mount Pleasant, bring us in. We’ll give you options, not guesses.
