"Beach Behavior, North Shore, Long Island 7011GR0001 



Sound" 



McCabe, R. A., Journal of Waterways, Harbors 



and Coastal Engineering Division , ASCE, Vol. 96, 



No. WW4, Paper No. 7679, Nov., 1970, pp. 781-794. 



A groin system constructed and evaluated on White Sand Beach has 

 shown: (1) necessary depth o£ the updrift flank of a groin depends on 

 minimum sand cover on that side of the groin, and can be independent 

 of the downdrift depth; (2) maximum width of the resulting stable beach 

 is limited by capacity of a shorter groin at the end and the amount of 

 sand available; (3) groin construction does not cause recession of an 

 adjacent beach if that beach was already in its natural orientation, 

 and (4) a groin is filled to capacity when it spills sand between the 

 beach toe and the limit of normal wave uprush - in this study above 

 about 2 feet higher than M.H.W. 



Key Words - N. Atlantic/Rubb le-mound/Structural-design/Misc-plan/ 

 System/ 



"Experiment in Shore Protection" 7105GR0001 



Riese, R. C. , The Military Engineer, Society 

 of American Military Engineers, Vol. 63, 

 No. 413, May-June, 1971, pp. 181-182. 



Lt. Colonel Riese from the Los Angeles District, U. S. Army Corps 

 of Engineers, has outlined the Coastal Engineering Research Center's 

 experimental groin project at Point Mugu, California. The project is 

 designed to determine the influence, under different conditions of 

 height, length, and permeability, the quantitative movement of sand 

 over, around, and through a groin. 



Key Words - Concrete/Long/High/Impermeable/Permeab le/Adjustable/ 

 Short/Low/Experimental/Field/Single/1970-19 74/ 

 California/ 



126 



