transport studies. This was a single structure consisting of the south jetty 

 only from the 5,000-ft spacing alignment. A comparison of the 5,000-ft jetty 

 effects and existing conditions (Plates 100 and 101) demonstrated that the 

 driving boundary conditions from the nearshore model were unaffected by the 

 jetties; therefore :; nonstructural mean tide boundary condition from the 

 nearshore model was applied to the shore process model. Marigrams from this 

 simulation appear in Plates 102-104 with the flow patterns presented in 

 Plates 105-107. 



67. For sediment transport studies under severe conditions, 24 hr of 

 the March 1962 northaaster were simulated startint, at 0600 (G'rr) on 7 March. 

 Marigrams at typical stations appear in Plates lOS-i.lO with flow patterns near 

 the peak of the storm at noon shown in Plate 111. The extreme flood flows at 

 the inlet are quite apparent. As indicated in Plate 110, flc ' through che 

 inlet was unidirectional into the bay for the enci'ro simulation period as 

 obser~>/ed during the actual ctorm. 



44 



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