The Third Crossing will bridge over the Cataraqui River to connect the east and west communities. The two existing routes that connect Kingston are Highway 401 and the LaSalle Causeway.

The city of Kingston will be responsible for building and maintaining the bridge, which is currently in the preliminary design phase. Construction is expected to begin in 2019 and projected to be complete by 2023. Ontario is providing up to US$45 million and will work with the city to investigate potential options to secure federal funding for the project.  

The bridge will provide alternate routes for commuters, decrease traffic congestion along the LaSalle Causeway and provide additional access to the east end of the city for emergency vehicles. The new bridge will also provide future opportunities for pedestrians, cyclists and other forms of active transportation with a multi-use trail.