295th Street Bridge Through truss bridge over Shell Rock River on 295th Street at Wilkinson Pioneer Park Open to pedestrians only Made obsolete by new bridge in 1985
7th Avenue Bridge Arch bridge over Willow Creek on E-W 7th Avenue N in Clear Lake Open to traffic Built 1900
Beaver Dam Creek Bridge Pony truss bridge over Beaver Dam Creek on a local road Open to traffic Built 1915
Beaver Dam Creek Bridge Pony truss bridge over Beaver Dam Creek on a local road Open to traffic Built 1923
Beaver Dam Creek Bridge Pony truss bridge over Beaver Dam Creek on a local road Open to traffic Built 1913
Beaver Dam Creek Bridge Pony truss bridge over Beaver Dam Creek on a local road Open to traffic Built 1959
Cold Water Creek Bridge Pony truss bridge over Cold Water Creek on a local road Open to traffic Built 1922; rehabilitated 1935
Lake Street Bridge Concrete arch bridge over an unnamed creek on Lake Street Open to traffic
Rock Falls Bridge Open-spandrel arch bridge over Shell Rock River on Spring Street in Rock Falls Open to traffic Built 1929 by C.A. Holvik of Mason City, Iowa
Rose Creek Bridge Pony truss bridge over Rose Creek on a local road Open to traffic Built 1917; rehabilitated 1941
Rose Creek Bridge Lost pony truss bridge over Rose Creek on a local road No longer exists Built 1926; replaced 2002
Shell Rock River Bridge Through truss bridge over Shell Rock River on a local road Open to traffic Built ca. 1950
Shell Rock River Bridge Lost through truss bridge over Shell Rock River on a local road No longer exists Built 1927; replaced 2003
Spring Creek Bridge Arch bridge over Spring Creek on a local road Open to traffic Built 1924
State Street Bridge Arch bridge over Willow Creek on E. State Street in Mason City Open to traffic Built 1903 by N.M. Stark & Co.
Stewart Avenue Bridge Arch bridge over Winnebago River on North Carolina Avenue in Mason City Open to traffic Built 1914; rehabilitated 2003
Unnamed Creek Bridge Pony truss bridge over an unnamed creek on a local road Open to traffic Built 1955
Wilkinson Pioneer Park Covered Bridge Modern covered bridge over a branch of Shell Rock River at Wilkinson Pioneer Park, southeast of Rock Falls Open to one-lane traffic Originally built 1969; destroyed by arson 1997; reconstructed 1998
Winnebago River Bridge Arch bridge over Winnebago River on a local road in Mason City Open to traffic Built 1923
Winnebago River Bridge Pony truss bridge over Winnebago River on a local road Open to traffic Built 1933
Winnebago River Bridge Pony truss bridge over Winnebago River on a local road Open to traffic Built ca. 1930
Winnebago River US 65 Bridge Concrete tee beam bridge over Winnebago River on southbound US 65 Open to traffic Built 1926