VI-146 



Increases, other areas for spoil disposal must be developed. 



One possibility 1s the use of spoil for reclaiming certain 

 areas. If this Is possible, the structural prooertles of the 

 spoil must be Improved so that It will stab1 Hie when placed 

 In these areas. Methods, procedures, and additives which would 

 help to stabilize these materials should be Investigated. 



Offshore and Near-shore Dumping 



Much material Is dumped offshore. Offshore dumping Is a method 

 of disposal for both solid and liquid materials In the open sea. 

 It Includes discharge to coastal v/aters, both within and outside 

 the territorial v;aters of the United States. In shallow areas, 

 much of this material Is sub.lect to complicated energy forces 

 which vary from day to day. Wind forces aopear to exert stronger 

 Influences In shallow areas than are generally encountered In 

 deeper waters, perhaps further Inshore. Because of this, much 

 more Information Is needed on wind, tide current, and other 

 offshore or onshore hydraulic effects before the fate of dumped 

 materials can be accurately predicted and a program of disposal 

 wisely managed. 



Sources and Rates of Sedimentation 



We need to develop new and Improved ways of measuring sedimenta- 

 tion rates. Including model studies to evaluate methods of 



