Research Station, London, Hydraulics 

 Research Paper, No. 3, 1960, 14 pp. 

 (TCI .G7p No. 3) 



Among nine questions and answers on coast erosion and defense, 

 these are especially pertinent to groins: (1) how should the de- 

 signer decide whether or not groins are desirable in a particular 

 case, and how should he decide on the spacing, length, height, profile, 

 and orientation? (2) what are the relative merits of permeable and im- 

 permeable groins? (3) what causes lee side scour, and how should the 

 problem be dealt with by the designer of sea defenses? 



Key Words - Model/Experimental/Europe/Accretion/Misc-plan/Low/Short/ 

 System/Erosion/Scour/Art if icial-fill/Mobbs/Permeable/ 

 Impermeable/1960-1964/ 



"Protection of the West Beach of Sylt 6000GR0002 



Island by Flat Groins" 



Zischer, F. F., Bitumen , Heidelberg, No. 



8/9, 1960, p. 190. 



Key Words - Not Annotated/ 



"Wessagussett Beach, Weymouth, Mass." 6002GR0001 



U. S. Army Corps of Engineers, House 

 Document No. 334, 86th Congress, 2nd 

 Session, Feb., 1960. 



Key Words - House Document/Not Annotated/ 



"A Contractor Battles the Tides" 6004GR0001 



Eastburn, H. C, Shore and Beach , 

 American Shore and Beach Preservation 

 Assoc, Vol. 28, No. 1, Apr., 1960, 

 p. 29. (TC330 .Am3) 



Repair and extension of groins at Bethany Beach, Delaware, were 

 undertaken by a low-bid company. Construction procedures and cost of 

 construction are presented. 



Key Words - N. Atlantic/Artificial-fill/System/Erosion/Timber/Steel/ 

 Rubble-mound/Economics/Const-procedure/Maintenance/1955- 

 1959/1960- 1964/ Impermeable/Accretion/ 



87 



