A seawall is a barrier between uplands and tidal waterflow. The tidal movement of water creates erosion which pulls upland into that water slowly reducing its footprint. The existence of seawalls stop this erosion of land and protect any structures on the upland side. Depending on geography an water type, there are a variety of seawall types, but the most common seawalls here in South Florida are concrete panel seawalls, vinyl sheet pile seawalls and corrugated metal seawalls such as steel or aluminum. Other seawalls we routinely see but are used less as a primary barrier are coral rock seawalls which were used heavily in the 1960’s and rip rap seawalls. Each seawall brings its own list of pros and cons to the conversation, so choosing the right seawall for your project will require some input from your needs.