2.5r- 



2.0 



1.5 



Hydroulic Radius (ft xlO) 



Minimum Cross-Sectionol Area (ft^x 10') 



Minimum Width (ftxIO"^ 



0,5L_i__i_J I I I I I I I 1 I I I 



1940 I960 1880 1900 1920 1940 I960 1980 



Year 



Figure 42. Time history of minimum inlet width, area, and 

 hydraulic radius, Galveston entrance, Texas. 



SUBMERGED JETTY (B80) 



JETTY COMPLETED 

 1869 



Figure 43. Galveston Island shorelines, 1851-89. 



51 



