The Stone Arch Bridge is a former railroad bridge crossing the Mississippi River at Saint Anthony Falls in downtown Minneapolis, Minnesota. It is the only arched bridge made of stone on the entire length of Mississippi River, and also the second oldest next to Eads Bridge. The bridge was built to connect the railway system to the new Union Depot, which at that time was planned to be built between Hennepin Avenue and Nicollet Avenue. The bridge was completed on 1883, costing an amazing sum of $650,000 during the time . 117 Portland Avenue is the general address of the historic complex.
For a time, the bridge was dubbed "Hill's Folly" until the value of Hill's new bridge as a passenger rail link became evident.
Positioned between the 3rd Avenue Bridge and the I-35W Saint Anthony Falls Bridge, the Stone Arch Bridge was built in 1883 by railroad tycoon James J. Hill for his Great Northern Railway, and accessed the former passenger station located about a mile to the west, on the west bank of the river. The structure is now used as a pedestrian and bicycle bridge. It is an Historic Civil Engineering Landmark, and was added to the National Register of Historic Places in 1971 as a part of the Saint Anthony Falls Historic District, (District #71000438).