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