waves attack the wall at oblique angles, whereas the locally generated waves 

 have a more perpendicular angle of attack. For the Lynn Harbor locations 

 the ESCUBED results are essentially negligible, and therefore, the locally 

 generated waves dominate for these locations. 



60. Table 5 is a summary of the wave heights, periods, and directions 

 from the ESCUBED modeling for several locations from Roughans Point up along 

 Revere Beach to Point of Pines. These locations are marked 1-9 in Figure 25. 

 Table 6 is a summary of the locally generated waves. These areas are marked 

 A-E in Figure 25. These two tables are provided to demonstrate the range of 

 wave parameters generated by the models. Waves were modeled only during 

 periods of possible overtopping at Roughans Point (water levels above 7.0 ft 

 NGVD) during northeaster conditions. The average values shown do not take 

 into account the varying probabilities of the surge-tide-wave events. 



Table 5 

 Summary of ESCUBED Wave Parameter Results 



























Height, 



ft 



Period, 



sec 



D 



irection,deg 

 True N 



Location* 



Min. 



Avg. 



Max. 



Min. 



Avg. 



Max. 



Min. 



Avg. 



Max. 



1 



0.5 



5.9 



9.6 



1.9 



9.3 



14.3 



30 



92 



97 



2 



0.2 



1.9 



3.4 



1.7 



7.9 



14.3 



** 



»* 



** 



3 



0.4 



5.4 



9.5 



1.9 



8.9 



14.3 



31 



91 



103 



4 



0.2 



3.9 



8.7 



1.7 



9.1 



14.3 



34 



109 



111 



5 



0.2 



5.1 



9.6 



2.0 



9.1 



14.3 



100 



114 



149 



6 



0.2 



4.5 



9.1 



2.0 



9.1 



14.3 



100 



122 



149 



7 



0.2 



3.4 



8.0 



2.0 



9.1 



14.3 



100 



130 



149 



8 



0.2 



1.8 



4.3 



2.0 



9.1 



14.3 



100 



145 



149 



9 



0.2 



0.2 



0.3 



1.9 



3.8 



4.3 



100 



141 



150 



* Refer to Figure 25 for locations. 

 ** Wave height for the north wall was calculated from the two direction bands 

 (70 and 50 deg) which were the closest to normal to the north wall. No di- 

 rection was calculated for these waves. 



48 



