▁concerns ▁over ▁the ▁nearby ▁Do e ▁Le a ▁Vi ad uct ▁made ▁the ▁decision ▁to ▁close ▁the ▁tunnel ▁easy . ▁In ▁its ▁later ▁years ▁so ▁much ▁pro pping ▁was ▁needed ▁and ▁so ▁much ▁dist ort ion ▁of ▁parts ▁of ▁the ▁walls ▁occurred ▁that ▁the ▁line ▁was ▁sing led ▁from ▁Sc ar cl iffe ▁to ▁Bol so ver ▁South . ▁▁ ▁The ▁section ▁between ▁Ch ester field ▁and ▁Lang with ▁J unction ▁( by ▁then ▁renamed ▁Sh ire bro ok ▁North ), ▁was ▁closed ▁to ▁passenger ▁traffic ▁by ▁British ▁Rail ways ▁in ▁December ▁ 1 9 5 1 . ▁Bol so ver ▁South ▁and ▁Sc ar cl iffe ▁stations ▁were ▁closed ▁completely . ▁The ▁section ▁from ▁Ch ester field ▁Market ▁Place ▁through ▁Ar kw right ▁Town ▁and ▁onto ▁the ▁GC ▁main ▁line ▁remained ▁open ▁to ▁goods ▁traffic ▁until ▁March ▁ 1 9 5 7 . ▁ ▁Track ▁lif ting ▁through ▁the ▁tunnel ▁comm enced ▁immediately ▁and ▁was ▁completed ▁within ▁weeks , ▁at ▁which ▁point ▁it ▁was ▁br icked ▁up ▁at ▁both ▁ends . ▁ ▁During ▁ 1 9 6 6 ▁a ▁major ▁operation ▁began ▁to ▁fill ▁in ▁the ▁tunnel ▁and ▁landscape ▁the ▁entrance ▁at ▁the ▁Car r ▁V ale ▁end . ▁ ▁Rel ics ▁ ▁Two ▁sites ▁give ▁modern - day ▁obser vers ▁a ▁taste ▁of ▁the ▁tunnel : ▁" Blue ▁B anks " ▁and ▁Sc ar cl iffe ▁C ut ting . ▁Blue ▁B anks ▁ ▁is ▁a ▁spo il ▁tip ▁on ▁the ▁cross - country ▁foot path ▁between ▁Hill st own ▁and