16 -, 





> 



c 

 o 



CD 

 > 



LU 



-16 



-24 



-32 



June 1994 



Equilibrium 



Groin 44 



Groin 44 100 ft extension 



-200 



aterlevel(*7 1) 



200 400 600 



Distance from baseline (ft) 



— I — ' — I — ' — I — ' — I 



1000 1200 1400 1600 



Figure 37. Profile 255 in June 1994 with Groin 44 and proposed extension shown relative to the 10-, 50- 

 and 100-year water levels 







Table 5 



Water-Level and Profile Elevations and Structure Depth 



Recurrence 

 Interval 



Water-Level Elevation 

 ft NGVD 



Profile Elevation 

 ft NGVD 



Water Depth 

 Ft 



10 



+7 1 



-10.3 



17.4 



50 



+9.2 



-9.8 



19.0 



100 



+ 10.0 



-9.6 



19.6 



Note: For conversion between NGVD and other water-level datums (e.g., mlw), see Figure 11. || 



methodology for computing the maximum breaker height follows that presented 

 in the Shore Protection Manual (SPM) (1984) as directed in Engineer Manual 

 1 11 0-2-2904 (U.S. Army Corps of Engineers (USAGE) 1986). 



42 



Ctiapter 4 Structure Design 



