The upper deck carries a single track rail line and a lower deck carries the road connecting Wisconsin Highway 105 to Minnesota State Highway 39.

The line was never built and the systems were connected across the Twin Ports Harbor.

Modernization came in 2000 when both states' transportation departments (WisDOT and Mn/DOT) cooperated with the Duluth, Missabe and Iron Range Railway to jointly fund a reconstruction of the roadway surface, which is constructed of a stronger steel with a reinforced concrete deck.

A weight restriction, which was lowered to one ton as the road deck deteriorated, was then lifted.

A pedestrian walkway atop the railway deck fell into disrepair and is no longer usable.