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1. REPORT NUMBER 

 TP 80-6 



2. GOVT ACCESSION NO. 



3. RECIPIENT'S CATALOG NUMBER 



4. TITLE (and Subtitle) 



A METHOD TO PREDICT THE STABLE GEOMETRY OF A 

 CHANNEL CONNECTING AN ENCLOSED HARBOR AND 

 NAVIGABLE WATERS 



5. TYPE OF REPORT & PERIOD COVERED 



Technical Paper 



6. PERFORMING ORG. REPORT NUMBER 



7. AUTHORfo; 



Craie H. Everts 



8. CONTRACT OR GRANT NUMBERfs; 



9. PERFORMING ORGANIZATION NAME AND ADDRESS 



Department of the Army 



Coastal Engineering Research Center (CEREN-GE) 



Kingman Building, Fort Belvoir, Virginia 22060 



D31235 



11. CONTROLLING OFFICE NAME AND ADDRESS 



Department of the Army 



Coastal Engineering Research Center 



Kingman Building, Fort Belvoir, Virginia 22060 



12. REPORT DATE 



August 1980 



13. NUMBER OF PAGES 

 18 



14. MONITORING AGENCY NAME ft ADDRESSf/f dJHerenI from Controlling Ollice) 



15. SECURITY CLASS, (ol this report) 



UNCLASSIFIED 



16. DISTRIBUTION ST ATEMENT fof (hfs ReporO 



Approved for public release; distribution unlimited. 



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



18. SUPPLEMENTARY NOTES 



19. KEY WORDS (Continue 



Enclosed harbors 

 Harbor channels 



Bsary and identify by block number) 



Harbor design 

 Suspended sediments 



Tidal flats 

 Tidal prism 



20. ABSTT^ACT (TTOTrtfime mi rvversa elite tt mce^eary mid iderUily by block number) 



A desirable design criterion for an enclosed harbor is that the channel connecting it 

 with navigable waters be self -maintaining. This condition will prevail where sediment 

 movement is negligible, or in the case of moving sediment, where tidal or river discharge 

 is sufficient to maintain acceptable channel dimensions. A method to predict the stable 

 configuration of such a channel is presented in this paper. A relationship between 

 stable channel cross-sectional area, cross-sectional shape, and bottom elevation of the 

 channel and the water discharge through the channel is determined using the geometric 

 characteristics of nearby natural channels and the hydraulic regimes that sustain those 

 channels. 





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