. ▁ ▁Re fin ery ▁ ▁The ▁bridge ▁passes ▁over ▁an ▁oil ▁ref in ery ▁( origin ally ▁owned ▁by ▁G ulf ▁O il , ▁then ▁by ▁Sun ▁O il , ▁now ▁by ▁Philadelphia ▁Energy ▁Sol utions ). ▁It ▁has ▁been ▁imper iled ▁a ▁few ▁times ▁by ▁fires ▁at ▁the ▁ref in ery . ▁On ▁August ▁ 1 7 , ▁ 1 9 7 5 , ▁fire ▁broke ▁out ▁in ▁a ▁tank ▁to ▁the ▁n ortheast ▁of ▁the ▁bridge ▁that ▁was ▁being ▁filled ▁with ▁Venez uel an ▁cru de ▁oil . ▁As ▁the ▁fire ▁en velop ed ▁much ▁of ▁the ▁ref in ery , ▁several ▁explos ions ▁put ▁a ▁large ▁crack ▁in ▁a ▁sm ok est ack ▁next ▁to ▁the ▁bridge . ▁Official s ▁closed ▁the ▁bridge ▁for ▁several ▁hours , ▁fear ing ▁that ▁the ▁stack ▁might ▁collapse ▁or ▁the ▁fire ▁might ▁damage ▁the ▁bridge . ▁The ▁ 1 9 7 5 ▁Philadelphia ▁Re fin ery ▁Fire ▁also ▁killed ▁eight ▁fire fig h ters . ▁ ▁Pl att ' s ▁vis age ▁ ▁In ▁ 1 9 8 6 , ▁two ▁bronze ▁bas - rel ief s ▁of ▁Pl att ' s ▁vis age ▁were ▁mounted ▁on ▁pol es ▁at ▁each ▁end ▁of ▁the ▁bridge . ▁The ▁works ▁were ▁commission ed ▁by ▁Pl att ' s ▁great - gre at - grand son , ▁Lawrence ▁Griff in ▁Pl att , ▁who ▁raised ▁$ 1 0 , 0 0 0 ▁with ▁the ▁help ▁of ▁a ▁former ▁G ulf ▁O il ▁executive , ▁and ▁were