FIGURE PAGE 



6-32 Sand Fence Dune - Padre Island, Texas 6-41 



6-33 Sand Fence Deterioration Due to Exposure and Storms. . . . 6-42 



6-34 Mechanical Transplanting of American Beachgrass 6-44 



6-35 American Beachgrass Dune - Ocracoke Island, North 



Carolina 6-47 



6-36 American Beachgrass with Sand Fence - Core Banks, 



North Carolina 6-48 



6-37 Sea Oats Dune - Padre Island, Texas 6-49 



6-38 Sea Oats Dune - Core Banks, North Carolina 6-50 



6-39 American Beachgrass Planting with Sand Fence, Core 



Banks, North Carolina (32 months after planting 6-52 



6-40 Sea Oats Planting, South Padre Island, Texas (38 months 



after Planting) 6-52 



6-41 European Beachgrass Dune - Clatsop Spit, Oregon 6-53 



6-42 Types of Littoral Barriers Wliere Sand-Transfer Systems 



have been Used 6-55 



6-43 Fixed Bypassing Plant - South Lake Worth Inlet, Florida. . 6-57 



6-44 Fixed Bypassing Plant - Lake Worth Inlet, Florida 6-58 



6-45 Sand Bypassing - Port Hueneme, California 6-60 



6-46 Sand Bypassing - Channel Islands Harbor, California. . . . 6-62 



6-47 Sand Bypassing - Santa Barbara, California 6-64 



6-48 Sand Bypassing - Hillsboro Inlet, Floirda 6-66 



6-49 Sand Bypassing - Masonboro Inlet, North Carolina 6-67 



6-50 Sand Bypassing - Perdido Pass, Alabama 6-68 



6-51 Sand Bypassing - Ventura Marina, California 6-69 



6-52 Sand Bypassing - Fire Island Inlet, New York 6-70 



6-53 Sand Bypassing - Oceanside Harbor, California 6-71 



6-54 Sand Bypassing - Ponce de Leon Inlet, Florida (south of 



Daytona Beach) 6-72 



6-55 Sand Bypassing - East Pass, Florida 6-73 



6-56 Sand Bypassing - Shark River Inlet, New Jersey 6-74 



6-57 Sand Bypassing - Shark River Inlet, New Jersey 6-75 



6-58 Timber Sheet-Pile Groin 6-77 



6-59 Timber-Steel Sheet-Pile Groin 6-78 



6-60 Cantilever Steel Sheet-Pile Groin 6-79 



6-61 Cellular Steel Sheet-Pile Groin 6-80 



6-62 Prestressed Concrete Sheet-Pile Groin 6-81 



6-63 Rubble-Mound Groin 6-82 



6-64 Quadripod - Rubble-Mound Jetty 6-83 



6-65 Doles - Rubble-Mound Jetty 6-86 



6-66 Cellular Steel Sheet-Pile Jetty 6-87 



6-67 Tetrapod - Rubble-Mound Breakwater 6-90 



6-68 Tirbar-Rubble-Mound Breakwater 6-91 



6-69 Stone Asphalt Breakwater 6-92 



6-70 Cellular Steel Sheet-Pile and Sheet-Pile Breakwater. . . . 6-94 



6-71 Perforated Caisson Breakwater 6-95 



6-72 Rubble-Mound Breakwater 6-97 



7-1 Definition of Breaker Geometry 7-4 



