Table 28 (Concluded) 



Date(s) 



1964 

 (Cont.) 



Construction and Rehabilitation History 



1985 



place to 1.5 ft thick, was provided as a filter. Core stone, 25 to 

 500 lb, was placed on the channel side of the existing jetty at a 

 slope of 1V:1H to 1V:1.5H to ensure stability of the rubble-mound 

 structure. The 3,500-ft-long timber crib on the seaward end of the 

 jetty was filled with core stone, 150 to 300 lb, to the original de- 

 sign elevation of +5.5 ft mlw. Cross sections of the rehabilitation 

 are shown in Figure 35. 



The jetties are in good condition and have been effective in pro- 

 viding safe navigation and preventing channel shoaling. 



SCALE OF FEET 

 20 00 2 4 6 8 100 00 



STONE TO BE PLACED 

 IN INNER END OF 

 NORTH JETTY 



SECTION AT STA. 1*50 



Figure 34. Mispillion River, Delaware 



60 



