SECTION PAGE 



6.3 PROTECTIVE BEACHES 6-16 



6.31 GENERAL 6-16 



6.32 EXISTING PROTECTIVE BEACHES 6-16 



6.321 Carolina Beach, North Carolina 6-17 



6.322 Sea Girt, New Jersey 6-29 



6.323 Redondo Beach (Malaga Cove), California 6-32 



6.4 SAND DUNES 6-36 



6.41 SAND MOVEMENT 6-36 



6.42 DUNE FORMATION 6-37 



6.43 DUNE CONSTRUCTION - SAND FENCE 6-37 



6.44 DUNE CONSTRUCTION - VEGETATION 6-43 



6.441 Harvesting and Processing 6-43 



6.442 Spacing 6-44 



6.443 Nutrients 6-44 



6.444 Seed 6-44 



6.445 Disease and Stress 6-46 



6.446 Planting Width 6-46 



6.447 Trapping Capacity 6-51 



6.448 Dune Elevation 6-51 



6.449 Cost Factors 6-54 



6.5 SAND BYPASSING 6-54 



6.51 FIXED BYPASSING PLANTS 6-54 



6.511 South Lake Worth Inlet, Florida 6-56 



6.512 Lake Worth Inlet, Florida 6-56 



6.52 FLOATING BYPASSING PLANTS 6-59 



6.521 Port Hueneme, California 6-59 



6.522 Channel Islands Harbor, California 6-61 



6.523 Santa Barbara, California 6-63 



6.524 Hillsboro Inlet, Florida 6-65 



6.525 Masonboro Inlet, North Carolina 6-65 



6.526 Perdido Pass, Alabama 6-65 



6.527 Other Floating Plant Projects 6-65 



6.53 LAND-BASED VEHICLES 6-76 



6.6 GROINS 6-76 



6.61 TYPES 6-76 



6.611 Timber Groins 6-76 



6.612 Steel Groins 6-76 



6.613 Concrete Groins 6-83 



6.614 Rubble-Mound Groins 6-83 



6.615 Asphalt Groins 6-83 



6.62 SELECTION OF TYPE 6-84 



6.7 JETTIES 6-84 



6.71 TYPES 6-84 



6.711 Rubble-Mound Jetties 6-84 



6.712 Sheet-Pile Jetties 6-88 



