110th Street Bridge Through truss bridge over Willow River on 110th Street Open to traffic Built 1918
145th Trail Bridge Pony truss bridge over Soldier River on 145th Trail Open to traffic Built 1945
155th Street Bridge Pony truss bridge over Willow River on 155th Street Open to traffic Built ca. 1930
155th Street Bridge Pony truss bridge over Mud Creek on 155th Street Open to traffic Built ca. 1940
170th Trail Bridge Through truss bridge over Soldier River on 170th Trail Open to traffic Built ca. 1930; rehabilitated 1957
180th Street Bridge Pony truss bridge over South Picayune Creek on 180th Street Open to traffic Built ca. 1950
210th Street Bridge Pony truss bridge over Little Pigeon on 210th Street Open to traffic Built ca. 1930; rehabilitated 1961
220th Street Bridge Pony truss bridge over Allen Creek on 220th Street Open to traffic Built ca. 1940; rehabilitated 1959
235th Street Bridge Pony truss bridge over Allen Creek on 235th Street Open to traffic Built ca. 1940
235th Trail Bridge Pony truss bridge over Willow Creek on 235th Trail Open to traffic Built 1935; rehabilitated 1957
270th Street Bridge Pony truss bridge over Allen Creek on 270th Street Open to traffic Built ca. 1930; rehabilitated 1977
280th Street Bridge Pony truss bridge over Mosquito Creek on 280th Street Open to traffic Built ca. 1940; rehabilitated 1972
288th Street Bridge Pony truss bridge over Mosquito Creek on 288th Street Open to traffic Built ca. 1940; rehabilitated 1970
315th Street Bridge Pony truss bridge over Mosquito Creek on 315th Street Open to traffic Built ca. 1930; rehabilitated 1993
325th Street Bridge Pony truss bridge over Keg Creek on 325th Street Open to traffic Rehabilitated 1997
325th Street Bridge Through truss bridge over Mosquito Creek on 325th Street Open to traffic Built ca. 1920
335th Street Bridge Through truss bridge over Mosquito Creek on 335th Street Open to traffic Built ca. 1920; rehabilitated 1945
340th Street Bridge Lost through truss bridge over Willow River on 340th Street No longer exists Built 1956; replaced 2005
8th Street Bridge Through truss bridge over Boyer River on 8th Street in Logan Open to traffic Rehabilitated 1972
Blair Bridge Lost three-span through truss bridge over the Missouri River on US 30 east of Blair Replaced by a modern bridge Built 1928-29; tolls removed 1962
Boyer River Bridge Through truss bridge over Boyer River on 290th Street Unknown status
Boyer River Bridge Through truss bridge over Boyer River on a local road Open to traffic Built ca. 1940; rehabilitated 1977
Boyer River Bridge Through truss bridge over Boyer River on a local road Open to traffic Built 1917; rehabilitated 1971
Canal Street Bridge Pony truss bridge over Willow River on Canal Street in Missouri Valley Open to traffic Built 1916; rehabilitated 1967
Harrison Monona Ditch Bridge Through truss bridge over Harrison Monona Ditch on 340th Street Open to traffic Built 1925; rehabilitated 1985
Jackson Street Bridge Lost through truss bridge over Soldier River on Jackson Street in Pisgah No longer exists Built 1918; rehabilitated 1949; replaced 2004
Jasper Trail Bridge Pony truss bridge over an unnamed creek on Jasper Trail Open to traffic Built 1900
Kelly Lane Bridge Through truss bridge over Soldier River on E. Kelly Lane Open to traffic Built 1918; rehabilitated 1950
Little Sioux River Bridge Through truss bridge over Little Sioux River on 120th Street Open to traffic Built 1971; rehabilitated 1986
Loess Hills Road Bridge Concrete arch bridge over an unnamed creek on CR L20 (Loess Hills Road) Open to traffic Built 1926
Malden Trail Bridge Pony truss bridge over Allen Creek on Malden Trail Open to traffic Built ca. 1940; rehabilitated 1976
Medford Avenue Bridge Through truss bridge over Willow River on Medford Avenue Open to traffic Built 1900
Mobile Avenue Bridge Pony truss bridge over Hoffman Creek on Mobile Avenue Open to traffic Built ca. 1940; rehabilitated 1962
Monona-Harrison Ditch Bridge Through truss bridge over Monona-Harrison Ditch Unknown status Built 1926; rehabilitated 1962
Neely Trail Bridge Through truss bridge over Willow Creek on Neely Trail Open to traffic Built ca. 1940
Norwood Avenue Bridge Pony truss bridge over Honey Creek on Norwood Avenue Open to traffic Rehabilitated 1990
Parker Trail Bridge Pony truss bridge over Boyer Creek on Parker Trail Open to traffic Built 1900
Reno Avenue Bridge Pony truss bridge over Six Mile Creek on Reno Avenue Open to traffic Built ca. 1930
Stowe Creek Bridge Pony truss bridge over Stowe Creek on 340th Street Unknown status Built ca. 1940
Taylor Avenue Bridge Pony truss bridge over Pigeon Creek on Taylor Avenue Open to traffic Built ca. 1920; rehabilitated 1986
US 30 Bridge Concrete arch bridge over an unnamed creek on US 30 Open to traffic Built 1929
Vienna Avenue Bridge Pony truss bridge over Pigeon Creek on Vienna Avenue Open to traffic Built 1967; rehabilitated 1978
Willow River Bridge Pony truss bridge over Willow River on 280th Street Open to traffic Built ca. 1930; rehabilitated 1974
Willow River Bridge Pony truss bridge over Willow River on 291st Street Open to traffic Built ca. 1930; rehabilitated 1974
Yale Avenue Bridge Pony truss bridge over Keg Creek on Yale Avenue Open to traffic Built ca. 1940; rehabilitated 1960