Wood bulkheads are cheaper to build but don’t past as long as concrete constructions. Rock revetments and rock seawalls will also be less costly, but they permit good sediment to be sucked out through the rocks, that may influence the structure’s stability and build the necessity for repairs or reinforcement. https://sandstonerepairsnorthshor39404.uzblog.net/the-smart-trick-of-sandstone-retaining-walls-north-shore-that-no-one-is-discussing-40676556