Wood bulkheads are less expensive to build but don’t final so long as concrete buildings. Rock revetments and rock seawalls are less expensive, but they allow fine sediment to generally be sucked out in the rocks, which can affect the framework’s security and build the necessity for repairs or reinforcement. https://chancecavoi.laowaiblog.com/27736253/facts-about-sandstone-steps-north-shore-revealed