Stone Retaining Rock Wall In Rockport Harbor Area Stock Photo

Seawalls, groins, jetties and other shoreline stabilization structures have had tremendous impacts on our nation`s beaches. Shoreline structures are built to alter the effects of ocean waves, currents and sand movement. They are usually built to `protect` buildings that were built on a beach that is losing sand. Sometimes they are built to redirect rivers and streams. Other times they are constructed to shelter boats in calm water.