There was a regulation created a few years ago that says any bridge constructed or improved with federal money must encompass the federal guidelines, which include bicycle and pedestrian access. I don't know how well it is being implemented because in Jefferson Louisiana there is a plan to refurbish the Huey P. Long Bridge over the Mississippi River and there were no bicycle or pedestrian lanes in the plans.

I think the replacement bridge in Minneapolis should not be built unless a commuter rail line is attached. The news reports say 290,000 vehicles cross there daily. Certainly that is enough traffic to sustain a light rail system in the area.