Asher Creek Bridge Two-span concrete arch bridge over Asher Creek on a local road in Marshalltown Open to traffic Built ca. 1920; rehabilitated 1978
Asher Creek Bridge Lost pony truss bridge over Asher Creek on a local road No longer exists Built 1955; replaced 2004
Branch Minerva Creek Bridge Through truss bridge over Branch Minerva Creek on a local road Open to traffic Built 1919; rehabilitated 1955
Branch North Timber Creek Bridge Through truss bridge over a branch of North Timber Creek on a local road Open to traffic Built 1954
Brush Creek Bridge Through truss bridge over Brush Creek on a local road Unknown status Built 1884; rehabilitated 1948
Brush Creek Bridge Pony truss bridge over Brush Creek on a local road Open to traffic Built 1917
Brush Creek Bridge Pony truss bridge over Brush Creek on a local road Open to traffic Built 1917
Burnett Creek Bridge Lost pony truss bridge over Burnett Creek on a local road No longer exists Built 1923; replaced 2004
Center Street Bridge Steel stringer bridge over Iowa River on N. Center Street in Marshalltown Open to traffic Built 1951
Clear Creek Bridge Pony truss bridge over Clear Creek on a local road Open to traffic Built 1921
Dowd Creek Bridge No. 1 Pony truss bridge over Dowd Creek on a local road Open to traffic Built 1916 by the Des Moines Bridge & Iron Co.; rehabilitated 1950
Dowd Creek Bridge No. 2 Pony truss bridge over Dowd Creek on a local road Open to traffic Built 1916; rehabilitated 1950
Honey Creek Bridge Plate girder bridge over Honey Creek on a local road Open to traffic Built 1915
Iowa River Bridge Through truss bridge over Iowa River on a local road Closed to all traffic Built 1885
Linn Creek Bridge Pony truss bridge over Linn Creek on a local road in Marshalltown Unknown status Built 1956
Linn Creek Bridge Pony truss bridge over Linn Creek on a local road Open to traffic Built 1893; rehabilitated 1955
Linn Creek Bridge Pony truss bridge over Linn Creek on a local road Unknown status Built 1949
Linn Creek Intersection Bridge Bridge over Linn Creek on Intersection of 200th Street and Durham Avenue Open to traffic Built 1920; rehabilitated 1976
Minerva Creek Bridge Through truss bridge over Minerva Creek on a local road Open to traffic Built ca. 1920
Minerva Creek Bridge Pony truss bridge over Minerva Creek on a local road Open to traffic Built 1919
Minerva Creek Bridge Arch bridge over Minerva Creek on a local road Open to traffic Built 1912
North Skunk River Bridge Pony truss bridge over North Skunk River on a local road Open to traffic Built 1914
Snipe Creek Bridge Pony truss bridge over Snipe Creek on a local road Open to traffic Built 1954
Snipe Creek Bridge Pony truss bridge over Snipe Creek on a local road Open to traffic Built 1917
South Timber Creek Bridge Through truss bridge over South Timber Creek on a local road Open to traffic Built 1954
Underwood Avenue Bridge Steel stringer bridge over Unnamed creek on Underwood Avenue and Merle Hibbs Blvd Open to traffic
Webster Street Bridge Pony truss bridge over the Union Pacific Railroad (formerly C&NWRR) on Webster Street in Le Grand Open to traffic Built ca. 1940
Yates Avenue Bridge Pony truss bridge over the Union Pacific Railroad (formerly Chicago & Northwestern Railroad) on Yates Avenue Open to traffic Built ca. 1900