8 . 5 %, ▁assuming ▁the ▁railway ▁would ▁increase ▁traffic : ▁a ▁friendly ▁local ▁paper ▁spoke ▁of ▁the ▁traffic ▁between ▁C ock erm outh ▁and ▁Work ington ▁being ▁already ▁£ 2 0 , 0 0 0 ▁a ▁year ▁and ▁hint ed ▁at ▁a ▁return ▁of ▁ 1 7 %. ▁ ▁The ▁parliament ary ▁Act ▁for ▁the ▁railway ▁was ▁obtained ▁in ▁ 1 8 4 5 ; ▁there ▁was ▁no ▁opposition ▁in ▁committee , ▁and ▁Royal ▁Ass ent ▁was ▁given ▁on ▁ 2 1 ▁July ▁ 1 8 4 5 ▁ ▁Gr ound ▁was ▁first ▁broken ▁ 8 ▁February ▁ 1 8 4 6 ▁( near ▁Br ought on ▁Cross ), ▁and ▁the ▁line ▁opened ▁ 2 7 ▁April ▁ 1 8 4 7 . ▁ ▁The ▁station ▁at ▁C ock erm outh ▁was ▁on ▁the ▁south ▁bank ▁of , ▁and ▁close ▁to ▁the ▁road ▁bridge ▁over , ▁the ▁River ▁Der w ent ; ▁the ▁line ▁ran ▁west wards ▁south ▁of ▁the ▁Der w ent ▁and ▁immediately ▁north ▁of ▁Br igh am ▁and ▁Br ought on ▁Cross , ▁crossing ▁the ▁River ▁Mar ron ▁near ▁its ▁confl u ence ▁with ▁the ▁Der w ent . ▁West ▁of ▁the ▁Mar ron , ▁the ▁railway ▁kept ▁to ▁the ▁low ▁ground ▁of ▁the ▁flo od ▁plain ▁of ▁the ▁Der w ent , ▁crossing ▁and ▁rec ross ing ▁the ▁Der w ent ▁five ▁times , ▁finally ▁running ▁along ▁the ▁north ▁side ▁of ▁the ▁Der w ent ▁to ▁a ▁j unction ▁with ▁the ▁White h aven ▁J unction ▁Railway ▁just