In 2013, the New York State Thruway Authority began building the New Tappan Zee Bridge. It will be a double-span bridge (four lanes per span in opposite directions) with designated bus lanes.The new bridge opened to traffic on August 26, 2017 for the westbound/northbound span. The eastbound/southbound span opened on September 11, 2018. The new span carries 10 lanes (4 lanes and with a bus lane in each direction) along with 2 pedestrian/bicycle lanes.