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READ INSTRUCTIONS 

 BEFORE COMPLETING FORM 



1. REPORT NUMBER 



SR-8 



2. GOVT ACCESSION NO 



3. RECIPIENT'S CATALOG NUMBER 



4. TITLE (and Subtitle) 



WEIR SAND-BYPASSING SYSTEMS 



5. TYPE OF REPORT & PERIOD COVERED 



Special Report 



6. PERFORMING ORG. REPORT NUMBER 



7. AUTHORfs.) 



J. Richard Weggel 



8. CONTRACT OR GRANT NUMBER(s) 



9. PERFORMING ORGANIZATION NAME AND ADDRESS 



Department of the Army 



Coastal Engineer intg Research Center (CEREN-EV) 



Kingman Building, Fort Belvoir, Virginia 22060 



F31535 



11. CONTROLLING OFFICE NAME AND ADDRESS 



Department of the Army 



Coastal Engineering Research Center 



Kingman Building, Fort Belvoir, Virginia 22060 



12. REPORT DATE 



April 1981 



14. MONITORING AGENCY NAME a ADDRESSff/ different from Controlling Office) 



13- NUMBER OF PAGES 



63 



IS. SECURITY CLASS, (ol this report) 



UNCLASSIFIED 



16. DISTRIBUTION STATEMENT (ot thin Report) 



Approved for public release; distribution unlimited. 



17. DISTRIBUTION STATEMENT (ol the abstract entered In Block 20, It different from Report) 



18. SUPPLEMENTARY NOTES 



19. KEY WORDS (Continue on reverse aide it necessary and identity by block number) 



Coastal engineering 



Hydraulics 



Navigation 



Sand bypassing 

 Shore structures 

 Weir jetties 



20. ABSTRACT (Continue on reverse side It necessary and Identify by block number) 



This report presents methodology for designing weir sand-bypassing 

 systems. Jetties are generally shore-normal structures built at tidal inlets 

 to fix the location of the inlet and associated navigation channel. In a 

 weir-jetty system one or both jetties is constructed with a low weir section 

 across which sediment can move into a deposition basin. The sediment caught 

 in the excavated deposition basin is periodically dredged and bypassed to 



(continued) 



DD , 



FORM 

 JAN 73 



1473 



EDITION OF 1 NOV 65 fS OBSOLETE 



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