FIGURE 



PAGE 



5-10 Groin System Operation with Reversal of Transport 5-37 



5-11 Representation of Intermediate Sloped Groin Section 



Designed Perpendicular to the Beach 5-40 



5-12 Stabilized Shoreline Produced by Material Flowing Over 



or Around Downdrift Groin 5-40 



5-13 Determining Stabilized Downdrift Beach Profile 5-42 



5-14 Receded Shoreline Assuming an Erodible Bottom and 



Backshore 5-42 



5-15 Effects of Engrance Jetties on Shoreline 5-49 



5-16 Effects of Shore-Connected Breakwater on Shoreline .... 5-51 



5-17 Siting of Offshore Breakwaters for Sheltering Harbor 



Entrance 5-52 



5-18 Siting Offshore Breakwaters Seaward of Seawalls for 



Protection 5-53 



5-19 Operation of Breakwater in Diffraction of Wave Forces. . . 5-54 



5-20 Breakwater Acting as Complete Littoral Barrier Causing 



a Tombolo 5-56 



6-1 Concrete Curved-Face Seawall 6-2 



6-2 Concrete Combination Stepped and Curved-Face Seawall . . . 6-3 



6-3 Concrete Stepped-Face Seawall 6-4 



6-4 Rubble-Mound Seawall 6-5 



6-5 Rubble-Mound Seawall (Typical-Stage Placed) 6-6 



6-6 Concrete Slab and King-Pile Bulkhead 6-7 



6-7 Steel Sheet-Pile Bulkhead 6-8 



6-8 Timber Sheet-Pile Bulkhead 6-9 



6-9 Concrete Revetment 6-10 



6-10 Riprap Revetment 6-11 



6-11 Interlocking Concrete- Block Revetment 6-12 



6-12 Interlocking Concrete- Block Revetment 6-13 



6-13 Interlocking Concrete- Block Revetment 6-14 



6-14 Protective Beach (Ocean City, New Jersey) 6-18 



6-15 Protective Beach (Ocean City, New Jersey) 6-19 



6-16 Protective Beach (Virginia Beach, Virginia) 6-20 



6-17 Protective Beach (Virginia Beach, Virginia) 6-21 



6-18 Protective Beach (Wrightsville Beach, North Carolina). . . 6-22 



6-19 Protective Beach (Wrightsville Beach, North Carolina). . . 6-23 



6-20 Protective Beach (Carolina Beach, North Carolina) 6-24 



6-21 Protective Beach (Carolina Beach, North Carolina) 6-25 



6-22 Protective Beach (Harrison County, Mississippi) 6-26 



6-23 Protective Beach (Harrison County, Mississippi) 6-27 



6-24 Protective Beach at Sea Girt, New Jersey 6-30 



6-25 Protective Beach at Sea Girt, New Jersey 6-31 



6-26 Protective Beach (Redondo Beach, California) 6-34 



6-27 Protective Beach (Redondo Beach, California) 6-35 



6-28 Foredune System 6-36 



6-29 Erecting Snow-type Sand Fencing 6-38 



6-30 Snow-type Sand Fencing Filled to Capacity 6-38 



6-31 Sand Fence Dune - Padre Island, Texas 6-40 



