▁the ▁surface ▁building ▁of ▁the ▁station , ▁dam aging ▁the ▁then ▁famous ▁James ▁Street ▁hyd ra ul ic ▁accum ulator ▁tower ▁so ▁badly ▁it ▁required ▁demol ition . ▁A ▁new ▁surface ▁building ▁was ▁built ▁in ▁the ▁ 1 9 6 0 s . ▁ ▁The ▁station ▁was ▁re built ▁in ▁the ▁ 1 9 7 0 s , ▁opening ▁in ▁ 1 9 7 7 , ▁as ▁a ▁creation ▁of ▁the ▁Mer sey ra il ▁network . ▁A ▁new ▁single - track ▁tunnel ▁known ▁as ▁the ▁Loop ▁was ▁constructed ▁being ▁a ▁part ▁of ▁the ▁Wir ral ▁Line ▁under ▁Liverpool ' s ▁city ▁centre . ▁The ▁Loop ▁ran ▁west ▁from ▁the ▁Mer sey ▁Railway ▁tunnel ▁via ▁a ▁newly ▁constructed ▁third ▁platform ▁at ▁James ▁Street , ▁then ▁onto ▁Mo or fields , ▁Liverpool ▁L ime ▁Street ▁and ▁Liverpool ▁Central , ▁and ▁back ▁to ▁James ▁Street ▁rejo ining ▁the ▁Mer sey ▁railway ▁tunnel ▁just ▁to ▁the ▁east ▁of ▁the ▁station . ▁ ▁The ▁eastern ▁section ▁of ▁the ▁original ▁tunnel ▁between ▁Liverpool ▁Central ▁and ▁James ▁Street ▁is ▁used ▁by ▁the ▁Northern ▁Line . ▁The ▁remaining ▁western ▁section ▁of ▁the ▁tunnel , ▁which ▁is ▁not ▁used ▁by ▁either ▁the ▁Wir ral ▁Line ▁or ▁Northern ▁Line , ▁was ▁retained ▁to ▁provide ▁a ▁connection ▁between ▁the ▁two ▁for ▁moving ▁empty ▁electric ▁trains ▁between ▁dep ots ▁at ▁ ▁and ▁. ▁Of ▁the ▁original ▁two ▁platforms ▁at ▁James ▁Street , ▁only ▁the ▁west bound ▁remains ▁in ▁regular ▁use . ▁Platform ▁ 2 , ▁the ▁original ▁east bound ▁platform , ▁is ▁kept ▁in