3.2ft 5 



72 ft 



5.18 pet. 



28.05 pet. 



31.61 pet 



V0L:35.I6 pet. 



7.8 -ft 

 8.0 ft 



9.0 ft 



10.0 ft 



\ll.0 ft Elevation 



Figure 17. Shore-perpendicular cross section of disposal 

 mound. The volumes represent the volume per- 

 centage of the trapezoidal section between contours 

 and therefore, the quantity of sediment added to 

 the 7-, 8-, 9-, and 10- foot contours. 



Contour 



Contour t 



Depth = I ft] 

 Inerement f -— 



■•— 400 ft = width of grid 



OFFSHORE 

 DIRECTION 



|l = 14 16 18 20 22 24 26 28 30 32 34 36 38 



Figure 18. Incremental values of Ay due to dredge disposal, 

 illustrated for the block between 8- and 9-foot 

 contours (case 4). 



45 



