The Portland–Columbia Toll Bridge is a toll bridge that carries New Jersey Route 94 over the Delaware River, between Pennsylvania Route 611 at Portland, Pennsylvania and Columbia in Knowlton Township, New Jersey, United States. It is owned and operated by the Delaware River Joint Toll Bridge Commission. U.S. Route 46 merges with Interstate 80 located just north of the bridge on the New Jersey approach. All maps sign the bridge as U.S.