IA 57

Beaver Creek Bridge (Butler County, Iowa)
Built 1926; rehabilitated 1957; Replaced 2003
Girder bridge over Beaver Creek on US 20
Replaced by a new bridge

IA57 Overpass (Hardin County, Iowa)
Built 1932, Removed April 2013
Deck plate girder bridge over Illinois Central Railroad on IA57 / Old US 20 in Ackley
Replaced by a new bridge