PREFACE 



The Hyperion Beach Erosion Project was accomplished in 1947. The 

 only known detailed report on the large hydraulic eductor system used in 

 this project operation was prepared in 1948 by Mr. James Hurd (deceased). 

 This report was never published. Although some 26 years have elapsed 

 since the report was completed, the engineering and operational data 

 presented should be of interest to engineers presently involved in trans- 

 port of sand by hydraulic means. It is for this reason that the report 

 is being published at this time. Mr. Kurd's original report was obtained 

 from the historical file of the U.S. Army, Corps of Engineers, District 

 Engineer Office, Los Angeles. With only minor editing and coordination 

 with the U.S. Army Engineer District, Los Angeles, it is presented in its 

 original format. 



At the time of the project, Mr. Hurd was Senior Mechanical Engineer, 

 Operations Division, U.S. Army Engineer District, Los Angeles. Richard 0. 

 Eaton prepared the instruction that initiated the report with specifica- 

 tions for the data to be included. This instruction became an order 

 signed by the Division Engineer, Brigadier General Dwight F. Johns. 

 Mr. Eaton later became Chief Technical Advisor at the Beach Erosion 

 Board and the Coastal Engineering Research Center, serving from 1951 

 to 1963. 



The Project was proposed by the Los Angeles City Engineer, the beach 

 fill features were conceived by Arvid Johnson (deceased) of the City 

 Engineers Staff. Credit then should be given to Arvid Johnson, James 

 Hurd, Richard Eaton, and to the Construction Aggregates Corporation for 

 their fine engineering effort in solving a unique earthmoving problem. 



NOTE: 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, 88th 

 Congress, approved 7 November 1963. 



.ngmeers 



