EFFl^GTlVi!; HEIGHT OF SEAYifALLS 



by 



Kenneth Kaplan 



Engineering IJi vision 



Beach ilrosion Board 



coMiBrrs 



I, 

 II. 



Ill, 



J.V. 



VI. 



VII, 

 VIII, 



Introduction ,......,. 



Factors Involved in liater Depth Variations at a 

 Seawall , . . , 



Criterion for Total Effectiveness of Seawalls . , 

 Seawall in the Breaker Zone 



Gen,3ral (Wave Attack) 



Height of Seawall to be Tobally Effective 



Co-ip3r';tive Effectiveness of Loit Seawalls 

 oeavf;.ll Seavrard of the Ireakor Zone 



General (t/ave ;Vbtack) 



Hei^iirit of ."Seavfall to be Fijlly Effective 



Comp'irati.va Effectiveness of Low Gea;valls 

 Seavrall Shoreward of the Breaker Zone , 



Discussion 



Sammary , 4 .....».,.....,.*.,,.., 



An Actual Case Galveston^ Texas .. 



Bibliogi'^phy ........,,,.,. , 



PAGE 



1 



2 

 3 

 A 



13 



15 

 16 

 16 



I . Introductio n 



Both seavralls and bulkheads are structures placed parallel or 

 nearly parallel bo a shore line^ generally separatj.ng a land area from 

 a water area-, The term seawall is used in this report since criteria 

 for structural design of the two are essentially the same, although the 

 structures differ functionally. Functionally a bulkhead is a structure 

 whose primary purpose is to support the land behind it while separating 

 this land from the water. A sea^Tall's primary purpose is to protect the 

 land area from erosion or damage due to wave action* 



Though seawalls are one of the most frequently used, as well as one 

 of the oldest means of coastal protection, their design has been dictated 



