<P> The New Tappan Zee Bridge , also known as the New NY Bridge and officially named the Governor Mario M. Cuomo Bridge after the late former governor Mario Cuomo , is a twin cable - stayed bridge being built to replace the current original Tappan Zee Bridge over New York 's Hudson River . The new bridges are to the north of and roughly parallel to the existing Tappan Zee Bridge , and cross the Hudson River in a parallel east - to - west direction . In the final configuration , the north span will carry the northbound traffic of I - 87 , westbound traffic of I - 287 , and a bicycle / pedestrian path , with the south span that will carry southbound and eastbound traffic of I - 87 and I - 287 , respectively . Construction began in 2013 , and at 1 : 36 A.M. on August 26 , 2017 , the north span officially opened to westbound traffic . Eastbound traffic was switched onto the same span on October 6 , 2017 . Tappan Zee Constructers are currently demolishing the old bridge and completing the south span , which eastbound traffic will use once complete . Both spans are expected to be operational by June 15 , 2018 . </P>
<P> The New Tappan Zee Bridge , also known as the New NY Bridge and officially named the Governor Mario M. Cuomo Bridge after the late former governor Mario Cuomo , is a twin cable - stayed bridge being built to replace the current original Tappan Zee Bridge over New York 's Hudson River . The new bridges are to the north of and roughly parallel to the existing Tappan Zee Bridge , and cross the Hudson River in a parallel east - to - west direction . In the final configuration , the north span will carry the northbound traffic of I - 87 , westbound traffic of I - 287 , and a bicycle / pedestrian path , with the south span that will carry southbound and eastbound traffic of I - 87 and I - 287 , respectively . Construction began in 2013 , and at 1 : 36 A.M. on August 26 , 2017 , the north span officially opened to westbound traffic . Eastbound traffic was switched onto the same span on October 6 , 2017 . Tappan Zee Constructers are currently demolishing the old bridge and completing the south span , which eastbound traffic will use once complete . Both spans are expected to be operational by June 15 , 2018 . </P>
when will the new tappan zee bridge be completed
when will the new tappan zee bridge be completed
by June 15 , 2018
by June 15 , 2018