® Sond is Moved to Weighing Station ~, 
Sand Beach 
Concrete 
Apron 
Concrete 
Ol Sand is 
Moved fo 
Sand Feeder 
Feeder Redeposits 
Sand Onto Beach 
@ Waves Breok and 
Transport Sand 
Alongshore 
we 
“aet 
Sand Deposits 
in Sond Trap 
@ Wove Generators Drive Waves at Angle to Beach 
Figure 12. Diagram of complete sand-moving system. 
Two cameras were mounted over the beach on the catwalk of the SPTB. One 
was a view camera with an adapter for taking 4- by 5-inch Polaroid black-and- 
white photos, and the other a standard 35-millimeter camera. The locations of 
the cameras are given in Table l. 
Other instruments used in the tests include standard hydraulic scales for 
weighing the sand, and a standard level and rod for surveying the beach after 
each teste 
Table 1. Locations of overhead cameras 
mounted on the catwalk. 
View 35-mm 
(m) (m) 
Range 
Station 
Elevation above SWL 
laccurate only to + 0.1 meter. 
24 
