Louis Bisson Bridge - Credit: Wikimedia Commons
Louis Bisson Bridge spans the Rivière des Prairies between the eastern tip of Montreal's Pierrefonds-Roxboro borough and the district of Chomedey in Laval, Quebec, Canada. It carries 7 lanes of Quebec Highway 13, including one reversible lane at the centre. That lane is an example of a permanent zipper lane. Read more on Wikipedia
Source: en.wikipedia.org