PREFACE 
This report is published to provide coastal engineers insight into the 
important coastal process of longshore transport along sandy beaches by pre- 
senting the results of three-dimensional movable-bed laboratory tests. It is 
hoped that future studies will expand on the analyses of the data in this 
report. The report was prepared under the nearshore sediment transport 
research program of the U.S. Army Coastal Engineering Research Center (CERC). 
The report was written by Philip Vitale, Hydraulic Engineer, under the 
general supervision of Dre ReM. Sorensen, Chief, Coastal Processes and 
Structures Branch, Research Division. 
The author acknowledges C. Galvin, RP. Savage, and RP. Stafford for their 
assistance and advice in the design and operation of the experiment, and M.S. 
Bartolomei, SL. Douglas, Be Keely, M. Koenig, MW. leffler, J.G. Tingler, J. 
Sullivan, K.P. Zirkle, and, in particular, L.O. Tornese for their help in 
collecting and analyzing the data. 
Comments on this publication are invited. 
Approved for publication in accordance with Public Law 166, 79th Congress, 
approved 31 July 1945, as supplemented by Public Law 172, ggth Congress, 
approved 7 November 1963. 
f/ : 
ED E. WISHOP 
Colonel, Corps of Engineers 
Commander and Director 
