Groin Design 57 



References 59 



Appendix A: SLimmaries of Wave Measurements at Long Beacii, 



New Jersey, Directional Wave Gauge Al 



SF298 



List of Figures 



F 



gure 



1. 



F 



gure 



2, 



F 



gure 



3. 



F 



gure 



4. 



F 



gure 5. 



Figure 6. 



F 



gure 



7. 



F 



gure 



8. 



F 



gure 



9. 



F 



gure 



10. 



F 



gure 



11. 



F 



gure 



12. 



F 



gure 



13. 



F 



gure 



14. 



F 



gure 



15. 



F 



gure 



16 



F 



gure 



17 



F 



gure 



18 



F 



igure 



19 



F 



igure 



20 



F 



igure 



21 



F 



igure 



22 



Figure 



23 



Site location map 2 



Locations of beach-profile surveys within hot spot 3 



Long Branch, New Jersey, wave rose 7 



Long Branch, New Jersey, wave rose (winter) 8 



Long Branch, New Jersey, wave rose (spring) 8 



Long Branch, New Jersey, wave rose (summer) 9 



Long Branch, New Jersey, wave rose (fall) 9 



October 1995 Profile 255 with equilibrium profile 10 



October 1995 Profile 265 with equilibrium profile 10 



October 1995 Profile 275 with equilibrium profile 11 



Relative position of vertical datums at Long Branch, 



New Jersey 1 1 



Groin field between Structures 51-60 13 



Schematic of performance measures used in empirical analysis 14 



Fill ratio versus groin spacing/length ratio 1 5 



Minimum distance to baseline (seawall) versus groin 

 spacing/length ratio 16 



Laboratory arrangement for Case 4 1 7 



Case 1 physical model/GENESIS comparison 18 



Case 4 physical model/GENESIS comparison 19 



Illustration of method determining initial shoreline position 23 



Alternative 1 shoreline positions 25 



Alternative 1 protective benn impacts 25 



Alternative 2 shoreline positions 27 



Alternative 2 protective berm impacts 27 



