Rocks, known as riprap, protect beachfront homes in Neskowin in Tillamook County, Ore.. (wxshift.com)
The river flooded each spring and dragged local backyards into its roil, even though the banks were strengthened with riprap and piled high with rocks torn from reconstructed walls and foundations. (bookbrowse.com)
Removal of engineered riprap (boulders) from the stream banks and reintroduction of large woody debris to enhance aquatic habitat. (nps.gov)