▁M orden ▁t ube ▁station ▁and ▁is ▁the ▁larger ▁of ▁the ▁two . ▁The ▁other ▁two ▁are ▁at ▁Ed g ware ▁and ▁High gate . ▁The ▁High gate ▁dep ot ▁is ▁on ▁the ▁former ▁L NER ▁branch ▁to ▁Alex andra ▁Palace . ▁There ▁was ▁originally ▁a ▁dep ot ▁at ▁Stock well ▁but ▁it ▁closed ▁in ▁ 1 9 1 5 . ▁There ▁are ▁sid ings ▁at ▁High ▁Bar net ▁for ▁st abling ▁trains ▁over night . ▁ ▁Future ▁ ▁B atter se a ▁extension ▁ ▁The ▁Northern ▁line ▁is ▁currently ▁being ▁extended ▁to ▁serve ▁the ▁re development ▁of ▁B atter se a ▁Power ▁Station . ▁Part ial ly ▁fund ed ▁by ▁private ▁developers , ▁the ▁£ 1 . 2 bn ▁project ▁will ▁extend ▁the ▁Char ing ▁Cross ▁branch ▁of ▁the ▁line ▁for ▁ ▁from ▁Ken ning ton ▁ ▁to ▁B atter se a ▁Power ▁Station , ▁with ▁an ▁intermediate ▁stop ▁at ▁N ine ▁El ms . ▁Appro ved ▁by ▁W and sw orth ▁Council ▁in ▁ 2 0 1 0 , ▁and ▁Transport ▁for ▁London ▁in ▁ 2 0 1 4 , ▁ ▁the ▁construction ▁of ▁the ▁line ▁began ▁in ▁ 2 0 1 5 . ▁T unn elling ▁for ▁the ▁project ▁was ▁completed ▁in ▁ 2 0 1 7 , ▁with ▁the ▁extension ▁estimated ▁to ▁open ▁in ▁ 2 0 2 0 . ▁ ▁Pro vision ▁will ▁be ▁made ▁for ▁a ▁future ▁on ward ▁connection ▁to ▁Cla ph am ▁J unction ▁railway ▁station ▁by ▁res erving ▁a ▁path ▁running ▁beneath ▁B atter