, ▁while ▁the ▁second ▁extends ▁from ▁I - 8 1 ▁east ▁of ▁B ingham ton ▁to ▁New ▁York ▁State ▁Route ▁ 7 9 ▁( N Y   7 9 ) ▁in ▁W inds or . ▁When ▁projects ▁to ▁upgrade ▁the ▁existing ▁NY   1 7 ▁to ▁Inter state ▁Highway ▁standards ▁are ▁completed , ▁I - 8 6 ▁will ▁extend ▁from ▁I - 9 0 ▁near ▁Er ie ▁to ▁the ▁New ▁York ▁State ▁Th ru way ▁( I - 8 7 ) ▁in ▁Wood bury . ▁The ▁current ▁and ▁future ▁alignment ▁of ▁I - 8 6 ▁is ▁known ▁as ▁the ▁Southern ▁Tier ▁Express way ▁west ▁of ▁I - 8 1 ▁in ▁B ingham ton ▁and ▁the ▁Quick way ▁east ▁of ▁I - 8 1 . ▁ ▁I - 8 6 ▁travel s ▁ ▁in ▁Pennsylvania ▁and ▁ ▁in ▁New ▁York . ▁Ex cept ▁for ▁a ▁section ▁of ▁about ▁ ▁that ▁di ps ▁into ▁Pennsylvania ▁at ▁exit ▁ 6 0 ▁near ▁the ▁New ▁York ▁village ▁of ▁W aver ly ▁and ▁the ▁Pennsylvania ▁bor ough ▁of ▁South ▁W aver ly , ▁the ▁rest ▁of ▁I - 8 6 ▁will ▁be ▁in ▁New ▁York . ▁The ▁section ▁of ▁NY   1 7 ▁through ▁South ▁W aver ly ▁is ▁maintained ▁by ▁the ▁New ▁York ▁State ▁Department ▁of ▁Transport ation ▁( N Y SD OT ), ▁however . ▁The ▁Southern ▁Tier ▁Express way ▁section ▁of ▁I - 8 6 ▁and ▁NY   1 7 ▁compr ises ▁Cor rid or ▁T ▁of ▁the ▁App al ach ian ▁Development ▁Highway ▁System