Laboratory model studies followed extensive field investigations 

 of coastal areas with erosion problems. After these studies were 

 completed, effective measures, including groin constnaction, were 

 ^plied. 



Key Words - Europe/System/Model/Experimental/Impermeable/ 



"The History of the Dutch Coast in the 7009GR0001 



Last Century" 



Bakker, W. T. , and Joustra, D. Sj . , 



Proceedings of the Twelfth Coastal 



Engineering Conference , ASCE, Vol. 2, 



Sept., 1970, pp. 709-728. (TC203 .C6) 



An investigation of the influence of groins concluded that the 

 erosion of areas with groins was much less than erosion of adjacent 

 areas. This effect is due partly to lee-side scour, but mainly to 

 decreased erosion in the protected area. 



Key Words - Scour/Europe/Field/Rubble-mound/1800-1900/1900-1949/ 

 1950-1954/1955-1959/1960-1964/Erosion/Accretion/ 

 Sys tem/ Impermeab le/ 



"Some Sand Transport Phenomena on Coasts 7009GR0002 



with Bars" 



Dyhr- Nielsen, M. , and Sorensen, T. , 



Proceedings of the Twelfth Coastal 



Engineering Conference , ASCE, Vol. 2, 



Sept., 1970, pp. 855-866. (TC203 .C6) 



Effects of a single groin and a groin system located on the 

 Danish west coast were investigated by field investigation and model 

 tests . 



Key Words - Europe/1900- 1949/1950-1954/1955-1959/Single/SysteLi/ 



Inperme able/Model/ Fie Id/Experimental/Erosion/ 1965 -1969/ 

 Accretion/structural-design/ 



"Experimental Study of the Hydraulic 7009GR0003 



Behavior of Inclined Groyne Systems" 



Barcelo, J. P., Proceedings of the TWelfth 



Coastal Engineering Conference , ASCE, 



Vol. 2, Sept., 1970, pp. 1021-1040. 



(TC203 .C6) 



123 



