283rd Street Bridge
Arch bridge over an unnamed creek on 283rd Street
Open to traffic
Built ca. 1910

Bear Creek Bridge
Lost pony truss bridge over Bear Creek on a local road
No longer exists
Built 1915; replaced 2003

Beer Creek East Line Street Bridge
Pony truss bridge over Beer Creek on East Line Street in Monmouth
Open to traffic
Built 1902

Big Mill Creek Bridge
Pony truss bridge over Big Mill Creek on a local road
Open to traffic
Built 1986

Brush Creek Bridge
Through truss bridge over Brush Creek on a local road
Open to traffic
Built 1902

Cottonville Bridge
Lost Modified Bowstring pony truss bridge over Farmers Creek on Bellevue Cascade Road in Cottonville
Replaced by new bridge
Built 1946; Replaced 1993

Deep Creek Bridge
Lost pony truss bridge over Deep Creek on a local road
No longer exists
Built 1939; replaced 2004

Farmers Creek Bridge
Pony truss bridge over Farmers Creek on a local road
Unknown status
Built 1915

Little Creek Bridge
Pony truss bridge over Little Creek on a local road
Unknown status
Built 1938

Local Road Bridge
Lost pony truss bridge over an unnamed creek on a local road
No longer exists
Built ca. 1910; replaced 2001

Local Road Bridge
Lost pony truss bridge over an unnamed creek on a local road
No longer exists
Built 1911; replaced 1911

Local Road Bridge
Lost pony truss bridge over an unnamed creek on a local road
No longer exists
Built 1911; replaced 2001

Local Road Bridge
Pony truss bridge over an unnamed creek on a local road
Unknown status
Built ca. 1920

Local Road Bridge
Lost pony truss bridge over an unnamed creek on a local road
No longer exists
Built 1914; replaced 2002

Maquoketa River Bridge
Through truss bridge over Maquoketa River on a local road
Open to traffic
Built 1927; rehabilitated 1957

Maquoketa River Bridge
Through truss bridge over Maquoketa River on a local road
Open to traffic
Built ca. 1950

Maquoketa River Bridge
Through truss bridge over Maquoketa River on a local road
Open to traffic
Built 1956

Maquoketa River Bridge
Through truss bridge over Maquoketa River on a local road
Open to traffic
Built 1958

Mill Rock Bridge
Lost Pratt through truss bridge over Big Bear Creek on 33rd Avenue in Monmouth Township
Replaced by new bridge
Built 1913; Replaced 1995

Mississippi River Overflow Bridge
Through truss bridge over Mississippi River Overflow on US 52/IA 64 in Sabula
Open to traffic
Built 1933; rehabilitated 1985

North Fork Maquoketa River Bridge
Through truss bridge over North Fork Maquoketa River on a local road
Open to traffic
Built ca. 1900

North Fork Maquoketa River Bridge
Lost through truss bridge over North Fork Maquoketa River on a local road
No longer exists
Built 1939; replaced 2005

South Fork Maquoketa River Bridge
Through truss bridge over South Fork Maquoketa River on a local road
Open to traffic
Built 1982

South Fork Maquoketa River Bridge
Through truss bridge over South Fork Maquoketa River on a local road
Open to traffic
Built ca. 1940

Tete De Morts Creek Bridge
Pony truss bridge over Tete De Morts Creek on a local road
Open to traffic
Built 1982

Unnamed Creek Bridge
Pony truss bridge over an unnamed creek on a local road
Open to traffic
Built 1915

Unnamed Creek Bridge
Pony truss bridge over an unnamed creek on a local road
Open to traffic
Built ca. 1930

Unnamed Creek Bridge
Pony truss bridge over an unnamed creek on a local road
Open to traffic
Built ca. 1930

Unnamed Creek Bridge
Lost pony truss bridge over an unnamed creek on a local road
No longer exists
Built ca. 1930; replaced 2004