Staircase
New Franklin Viaduct (Howard County, Missouri)
Built 1939-40; demolished 2010Lost massive concrete deck girder bridge over Katy Trail and city streets on MO 5 in New FranklinDemolished. Separation of grade eliminated.
University Avenue Bridge (Polk County, Iowa)
Built 1917-1920; rehabilitated 1966Open-spandrel arch bridge over Des Moines River on University Avenue in Des MoinesOpen to traffic