▁ 1 8 5 4 ▁the ▁London der ry ▁Port ▁& ▁Har bour ▁Commission ers ▁were ▁established ▁to ▁manage ▁the ▁port ▁and ▁over see ▁its ▁expansion . ▁The ▁Commission ers ▁were ▁also ▁given ▁full ▁control ▁of ▁the ▁water ways ▁from ▁the ▁city ▁to ▁the ▁mouth ▁of ▁L ough ▁Fo yle , ▁allowing ▁for ▁strateg ic ▁planning ▁of ▁the ▁port . ▁An ▁ 1 8 6 8 ▁report ▁describing ▁the ▁city ' s ▁expansion ▁mentioned ▁the ▁exp end iture ▁on ▁the ▁port : ▁New ▁do cks ▁and ▁qu ays ▁built ▁( at ▁a ▁cost ▁of ▁£ 1 2 6 , 5 0 0 ), ▁a ▁new ▁gra ving ▁dock ▁( £ 2 5 , 0 0 0 ), ▁fl ats ▁deep ened ▁( £ 7 , 0 0 0 ) ▁leading ▁to ▁an ▁expansion ▁in ▁trade ▁of ▁all ▁kinds . ▁Of ▁coast al ▁traffic ▁the ▁total ▁ ▁t onn age ▁handled ▁in ▁ 1 8 5 7 ▁had ▁been ▁ 1 4 8 , 2 9 1   t ▁( for ▁steam ers ), ▁and ▁ 4 5 , 6 7 6   t ▁( s ail ing ▁ships ); ▁in ▁ 1 8 6 7 ▁it ▁was ▁ 1 3 4 , 3 6 8   t ▁and ▁ 6 7 , 3 0 4   t ▁respectively . ▁In ▁foreign ▁trade , ▁ 1 8 5 7 ▁saw ▁ 2 7 , 6 3 7   t ▁entering ▁the ▁port ; ▁in ▁ 1 8 6 7 ▁it ▁was ▁ 4 0