US 18

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Brantingham Street Bridge (Floyd County, Iowa)
Built 1967, Survived the 1968 F5 tornado
Steel stringer bridge over Cedar River on US 18
Open to traffic

Grand Avenue Bridge (Clay County, Iowa)
Built 1915; rehabilitated 1951; Replaced 2006
Lost concrete arch bridge over Little Sioux River on US 18/71 (Grand Avenue) in Spencer
Replaced by a new bridge

IA122 Cheslea Creek Bridge (Cerro Gordo County, Iowa)
Built 1915; rehabilitated 1962; Replaced 2010
Lost Concrete tee beam bridge over Cheslea Creek on IA 122
Replaced by a new bridge

Little Sioux River Bridge (Clay County, Iowa)
Built 1914; rehabilitated 1951, replaced 2006
Concrete arch bridge over Little Sioux River on US 18/US 71
Replaced by a new bridge

Marquette-Prairie Bridge (Crawford County, Wisconsin)
Built 1932; Replaced 1974
Lost suspension bridge over Mississippi River on US 18
Replaced by a new bridge

Old US18 Des Moines River Pony Truss (Palo Alto County, Iowa)
Abandoned pratt pony truss bridge over Des Moines River
Abandoned

Old US18 Shell Rock River Tributary Bridge #1 (Floyd County, Iowa)
Abandoned concrete culvert bridge over Shell Rock River Tributary on Old alignment of US 18
Abandoned

Old US18 Shell Rock River Tributary Bridge #2 (Floyd County, Iowa)
Abandoned concrete culvert bridge over Shell Rock River Tributary on Old alignment of US 18
Abandoned

Prairie Bridge (Clayton County, Iowa)
Built 1974
Steel through arch bridge over Mississippi River on US 18 between Marquette and Prairie du Chien
Open to traffic

State Street Bridge (Milwaukee County, Wisconsin)
Built 1924; Restored 2007
Bascule bridge over Milwaukee River on State Street (Westbound US 18) in Milwaukee
Open to traffic

Taylor Bridge (Cerro Gordo County, Iowa)
Built 1924, sidewalk added 1954; Replaced 1997
Lost Marsh arch bridge over Winnebago River on Business US 18
Replaced by a new bridge

Taylor Bridge (Old) (Cerro Gordo County, Iowa)
Built 1887; Replaced 1924
Lost Pratt through truss bridge ober Winnebago River on US18
Replaced by a new bridge

US18 Big Sioux River Bridge (Lyon County, Iowa)
Built 1978
Steel stringer bridge over Big Sioux River on US 18
Open to traffic

US18 Big Sioux River Bridge (Old) (Lyon County, Iowa)
Built 1927; Replaced 1978
Lost Parker through truss bridge over Big Sioux River on US 18
Replaced by a new bridge

US18 Rock Valley Bridge (Old) (Sioux County, Iowa)
Built 1935; Replaced 2002
Stringer bridge over Rock River on US 18
Replaced by a new bridge

US18 Turkey River Bridge (Old) (Fayette County, Iowa)
Built 1943, Replaced 1988
Lost Open-spandrel arch bridge over Turkey River on US 18
Replaced by a new bridge

US18 Turkey River Bridge (Older) (Fayette County, Iowa)
Built ca. 1881; Replaced 1943
Lost 3-Hinged Braced Arch through truss bridge over Turkey River on US 18
Replaced by a new bridge

US18BUS Flood Creek Tributary Bridge (Floyd County, Iowa)
Built 1919; rehabilitated 1949
Slab bridge over Flood Creek Tributary on US 18 Business
Open to traffic

Wells Street Lift Bridge (Milwaukee County, Wisconsin)
Built 1985
Vertical lift bridge over Milwaukee River on Wells Street (Eastbound US 18) in Milwaukee
Open to traffic