Key Words - House Document/Not Annotated/ 



"Duval County, Florida" 6508GR0001 



U. S. Army Corps of Engineers, House Docu- 

 ment No. 273, 89th Congress, 1st Session, 

 Aug., 1965. 



Key Words - House Document/Not Annotated/ 



"Variations in Groin Design" 6510GR0001 



Berg, D. W. , and Watts, G. M. , Coastal 

 Engineering Santa Barbara Specialty 

 Conference, ASCE, Oct., 1965, pp. 763-797. 

 (TC203 .C9S6) 



Considering all types of structures used for shore protection 

 purposes, the groin is probably the most widely used and yet it is 

 perhaps the one structure least understood. Groins or groin systems 

 of a particular design may be found where the intended purpose was 

 achieved; however, it is not uncommon to learn of other cases where a 

 similar design was used and negligible benefits resulted. The purpose 

 of this paper is to point out pertinent features of basic types of 

 groins and to illustrate some of the many variations which have been 

 built in the United States. 



Key Words - Impermeable/Concrete/Steel/Geometric-shapes/Timber/Asphalt/ 

 Rubble-mound/Misc-materials/Permeable/S. M. Wood/Piling/ 

 S. Atlantic/N. Atlantic/Califomia/Great Lakes/Alaska/ 

 T-groins/Hawaiian Islands/Texas Gulf/Adjustable/Z-groins/ 

 Structural -design/Budd/Sys tern/ Low/Short/Single/High/ Long/ 

 Erosion/Notched/Field/Photographic/ 



"Use of Long Groins as Artificial Headlands" 6510GR0002 



Dunham, J. W. , Coastal Engineering Santa 

 Barbara Specialty Conference , ASCE, Oct., 

 1965, pp. 755-762. (TC203 .C9S6) 



The construction of short groins to trap fillets of sand along 

 coastal beaches characterized by prevailing littoral transport has 

 become a well known practive in coastal engineering. Less common, but 

 often equally important, is the use of long groins to form artificial 

 headlands which trap sand more or less permanently in artificial 

 pocket beaches. The successful use of this long-groin technique at 



III 



