<P> The Federal Highway Administration issued a report in October 2011 designating the Tappan Zee 's replacement to be a dual - span twin bridge . The new bridge is now under construction a few yards to the north of the existing bridge , and will connect to the existing highway approaches of the New York State Thruway ( I - 87 / I - 287 ) on both river banks . Construction began as scheduled during October 2013 , with completion targeted for 2017 . After some delays , the project is currently expected to be completed by June 15 , 2018 , at a cost of $3.98 billion . </P>
<P> The Federal Highway Administration issued a report in October 2011 designating the Tappan Zee 's replacement to be a dual - span twin bridge . The new bridge is now under construction a few yards to the north of the existing bridge , and will connect to the existing highway approaches of the New York State Thruway ( I - 87 / I - 287 ) on both river banks . Construction began as scheduled during October 2013 , with completion targeted for 2017 . After some delays , the project is currently expected to be completed by June 15 , 2018 , at a cost of $3.98 billion . </P>
how much does the new tappan zee bridge cost
how much does the new tappan zee bridge cost
$3.98 billion
$3.98 billion