YEAH OF COUPLE Tl ON 

 CONCRETE 5UPR 6UILT 

 REPAIRED 1965 



INNER BREAKWATER 



INNER BREAKWATER 



INNER BREAKWATER 



INNER BREAKWATER 



INNER BREAKWATER 



ONCBETE SUPB BUILT 



PRAP PflOTECTIO 



INNER BREAKWATER 



5CCT10N AT J 



TEAR OP COMPLETION lOflO 

 CONCRETE SuPR BUILT )«aO 

 RUBBLE AOOeO 1958 



INNER BREAKWATER 



SECTION AT U 

 YEAR OF COMPLETION 1874 

 CONCRETE 3UPB BUILT 1934 



Figure 98, Typical structure cross sections, Chicago Harbor, Illinois 



164 



