Elk Run Bridge (Hardin County, Iowa)
Built ca. 1920
Arch bridge over Elk Run on River Road in Iowa Falls
Open to traffic

Iowa Falls Junction Bridge (Hardin County, Iowa)
Pony plate girder bridge over Iowa Hwy 65 on Chicago, Central & Pacific rail line in Iowa Falls
Open to traffic

Iowa River Bridge (Hardin County, Iowa)
Built 1934
Arch bridge over Iowa River on Washington Street in Iowa Falls
Open to traffic

Iowa River Bridge (Hardin County, Iowa)
Built 1922; rehabilitated 1984
Arch bridge over Iowa River on River Street in Iowa Falls
Open to traffic

Iowa River US 65 Bridge (Hardin County, Iowa)
Built 1928; rehabilitated 1967
Open-spandrel arch bridge over Iowa River on US 65 in Iowa Falls
Open to traffic

Wildcat Glen Bridge (Hardin County, Iowa)
Built 1933
Arch bridge over Wildcat Glen on Mildred Avenue in Iowa Falls
Open to traffic