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LEGEND 



RETURN PERIOD, YRS 



EXISTING 



ORICIMAl PROPOSAL 



--U1DE BERI1 



TUO BERns 



UIDE BERn ♦ 1 FT CAP 



UIDE BERfl ♦ 2 FT CAP 



STAGE FREQUENCY 



ROUGHANS POINT INTERIOR 

 NORTH UALL - 1E.0 FT 



Figure 38. Roughans Point stage frequency, northern structure height = 12 ft 



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3 '• 



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LEGEND 



RETURN PERIOD, VRS 



.M. e ft 



13. I FT 



ia.« FT 



STAGE FREQUENCY 



ROUGHANS POINT INTERIOR 



NORTH UALL COMPARISONS 



UIDE BERP1 



Figure 39. Effect of northern structure height on the "Wide Berm" alternative 



70 



