k-o-i 



Plan 



Cross - Section 



Cross - ^Section 



T 



Figure 78. Two methods of making fascine mattresses 

 (Van Bendegon and Zanen, 1960) . 



pn 



■ 



r 





p\ 









- 







b\ \. 











e 





> \ 





















'8 



>» 







< 





s 









r 





p 





V 





.... I-'" 





:'""'• ' ' ^ 









_. 







'■■' ;"'•'•' 





.; |y4' 



, l;-y •■}■<,• •■^r^t 



Figure 79. Submerged current control screen made 

 of "wattles" (NEDECO, 1959) . 



280 



