Robert Street Bridge
Robert Street Bridge is a reinforced concrete multiple-arch bridge that spans the Mississippi River in downtown St. Paul, Minnesota. The bridge is notable for its complex design that was required to accommodate river traffic, the St. Paul Union Pacific Vertical-lift Rail Bridge crossing underneath it at an angle, and roadways on the downtown side of St. Paul. The bridge is also notable for a monumental reinforced concrete rainbow arch. -from Wikipedia
bridgewaterfront
