Table 20. Annual Suspended Sediment Discharge of Atlantic Coast Rivers 



North Atlantic Region 



10^ Tons per Year 



Tons per Year per km^ of Drainage Basin 



(Rivers) 







Connecticut 



0.89 



3.1 



Hudson 



0.40 



12.0 



Raritan 



0.071 



29.0 



Delaware 



0.72 



21.0 



Susquehanna 



0.96 



14.0 



Potomac 



1.4 



37.0 



James 



1.0 



36.0 



Region 



6.1 





South Atlantic Region 







Rivers 







Roanoke 



2.5 



99.0 



Pee Dee 



1.6 



59.0 



Santee 



3.4 



90.0 



Savannah 



2.6 



90.0 



Ogeeche 



1.2 



87.0 



Altamaha 



3.0 



83.0 



Region 



21.8 





from Gross, (1969) after Dole and Stabler, 1909 



Table 21. Suspended Solids Discharged by Major Rivers 



(Rivers) 



10^ Tons per Year 



' Tons per Year per km^ of Drainage Basin 



Niger 



5.0 



4.6 



Amazon 



400.0 



65.0 



Congo 



71.0 



18.0 



Mississippi 



344.0 



107.0 



Colorado 



149.0 



418.0 



Rio Grande 



9.4 



136.0 



Rhine 



0.5 



3.0 



Yellow (Hwang Ho) 



2,083.0 



2,910.0 



Ganges 



1,600.0 



1,540.0 



Bramaputra 



800.0 



1,430.0 



Mekong 



187.0 



479.0 



from Gross, (1969) after Holeman 



142 



