Vertical Planks or sheets pushed into the ground to form the key barrier from h2o. Often product of steel, vinyl, or fiberglass to resist corrosion. All wood is force dealt with and decking is  secured with hand driven, 20 penny ring shank nails. We advocate applying  CWF-5 Flood to keep https://shoreprotectteam.com/bulkhead-construction-and-repair-cost-in-texas/