mouth ▁and ▁Salt ash . ▁The ▁to wers ▁remained ▁and ▁during ▁the ▁ 1 8 5 0 s ▁int rep id ▁passengers ▁could ▁cross ▁the ▁g orge ▁in ▁a ▁basket ▁sl ung ▁from ▁the ▁iron ▁bar . ▁ ▁Brun el ▁died ▁in ▁ 1 8 5 9 , ▁without ▁seeing ▁the ▁completion ▁of ▁the ▁bridge . ▁His ▁colle agues ▁in ▁the ▁Institution ▁of ▁Civil ▁Engine ers ▁felt ▁that ▁completion ▁of ▁the ▁Bridge ▁would ▁be ▁a ▁fitting ▁mem orial , ▁and ▁started ▁to ▁raise ▁new ▁funds . ▁In ▁ 1 8 6 0 , ▁Brun el ' s ▁Hung er ford ▁susp ension ▁bridge ▁over ▁the ▁Th ames ▁in ▁London ▁was ▁demol ished ▁to ▁make ▁way ▁for ▁a ▁new ▁railway ▁bridge ▁to ▁Char ing ▁Cross ▁railway ▁station . ▁Its ▁ch ains ▁were ▁purchased ▁for ▁use ▁at ▁Cl if ton . ▁ ▁A ▁re vised ▁design ▁was ▁made ▁by ▁William ▁Henry ▁Bar low ▁and ▁Sir ▁John ▁Haw k sh aw , ▁with ▁a ▁wider , ▁higher ▁and ▁st urd ier ▁deck ▁than ▁Brun el ▁intended , ▁with ▁triple ▁ch ains ▁instead ▁of ▁double . ▁ ▁It ▁has ▁been ▁argued ▁that ▁the ▁size ▁and ▁technology ▁of ▁these ▁revis ions ▁was ▁so ▁great ▁that ▁the ▁credit ▁for ▁its ▁design ▁should ▁go ▁to ▁Bar low ▁and ▁Haw k sh aw . ▁The ▁to wers ▁remained ▁in ▁rough ▁stone , ▁rather ▁than ▁being ▁finished ▁in ▁the ▁Egypt ian ▁style . ▁Work ▁on ▁the ▁bridge ▁was ▁restart ed ▁in ▁ 1 8 6 2 . ▁Initial ly ▁a ▁temporary ▁bridge