Clay County

290th Street Bridge   [Map]
Pony truss bridge over Ditch No. 61 on 290th Street
Open to traffic
Built 1913
330th Street Bridge   [Map]
Lost pony truss bridge over an unnamed creek on 330th Street
No longer exists
Replaced 2005
370th Street Bridge   [Map]
Lost pony truss bridge over an unnamed creek on 370th Street
No longer exists
Replaced 2001
485th Street Bridge   [Map]
Pratt pony truss bridge over Tributary of Little Sioux River on private road just off 485th Street
Closed to all traffic
Big Meadow Creek Bridge   [Map]
Lost pony truss bridge over Big Meadow Creek on 260th Avenue
No longer exists
Built 1915; replaced 2000
Big Muddy Creek Bridge   [Map]
Lost pony truss bridge over Meadow Creek on 290th Street
No longer exists
Built 1925; replaced 2002
Burr Oak Bridge   [Map]
Lost through truss bridge over Little Sioux River on 495th Street east of US 71
Destroyed by tornado in 2004; Replaced by an UCEB in 2005
Built 1905 by the Clinton Bridge & Iron Works; relocated here in 1926; rehabilitated in 1943 and 1984; destroyed by tornado in June 2004; replaced in 2005
CNW - Montgomery Creek Bridge   [Map]
Abandoned bridge over Montgomery Creek on Railroad
Derelict/abandoned
CNW - Small Stream Bridge   [Map]
Abandoned bridge over Creek on Railroad
Derelict/abandoned
CNW - Webb High Bridge   [Map]
Abandoned pratt deck truss bridge over Little Sioux River on Abandoned C&NW Railroad
Abandoned
Built 1900
DM&E - Little Sioux River Bridge   [Map]
Pony truss bridge over Little Sioux River on Railroad
Open to traffic
Grand Avenue Bridge   [Map · Street View]
Lost concrete arch bridge over Little Sioux River on US 18/71 (Grand Avenue) in Spencer
Replaced by a new bridge
Built 1915; rehabilitated 1951
Little Sioux River Bridge   [Map]
Through truss bridge over Little Sioux River on 470th Street
Open to traffic
Built 1907; rehabilitated 1960
Little Sioux River Bridge   [Map]
Lost through truss bridge over Little Sioux River on 495th Street
No longer exists
Built 1926; replaced 2005
Little Sioux River Bridge   [Map]
Through truss bridge over Little Sioux River on 355th Street
Open to traffic
Built 1905
Little Sioux River Bridge   [Map]
Concrete arch bridge over Little Sioux River on US 18/US 71
Open to traffic
Built 1914; rehabilitated 1951
Little Sioux River Bridge   [Map]
Pony truss bridge over Little Sioux River on 210th Avenue
Open to traffic
Built 1915
M&StL - Little Sioux River Bridge (Spencer)   [Map]
Lost Pratt hrough truss bridge over Little Sioux River on Minneapolis & St. Louis Railway
Replaced by a new bridge
Removed 1936
Main Street Bridge   [Map]
Lost Pennsylvania through truss bridge over Little Sioux River on Main Street (Now Renamed)
Replaced by a new bridge
Built 1889, span added 1901, Replaced 1915
Ocheydan River 300th Street Bridge   [Map]
Pony truss bridge over Ocheydan River on 300th Street
Open to traffic
Built 1900
Ocheydan River Bridge   [Map]
Pony truss bridge over Ocheydan River on 340th Street
Open to traffic
Built 1911
Old Humpback Bridge   [Map]
Lost Bridge over Railroad on 230th Avenue
No longer exists
Old Rusty Bridge   [Map]
Through truss bridge over Little Sioux River on 210th Avenue north of Spencer in Spencer
Open to one-lane traffic
Built 1901 by the Clinton Bridge & Iron Works; relocated here in 1915
Pickeral Run Bridge   [Map]
Pony truss bridge over Pickeral Run on 1st Street in Dickens
Open to traffic
Built 1923
Stoney Creek 290th Street Bridge   [Map]
Lost pony truss bridge over Stoney Creek on 290th Street
No longer exists
Built 1904; rehabilitated 1937; replaced 2004
Stoney Creek 300th Street Bridge   [Map]
Lost pony truss bridge over Stoney Creek on 300th Street
No longer exists
Built ca. 1940; replaced 2005
Stoney Creek 310th Street Bridge   [Map]
Pony truss bridge over Stoney Creek on 310th Street
Open to traffic
Built 1924
Teilbur Bridge   [Map]
Through truss bridge over Little Sioux River on 470th Street/240th Avenue east of US 71
Open to one-lane traffic with a weight limit
Built 1907 by the Clinton Bridge & Iron Works, rebuilt in 1991 after an accident destroyed the south approach span.
Thunder Bridge   [Map · Street View]
Through truss bridge over Little Sioux River on 355th Street (Thunder Bridge Road) just off 4th Street in Spencer
Open to one-lane traffic
Built 1905
Willow Creek 430th Street Bridge   [Map]
Pony truss bridge over Willow Creek on 430th Street
Open to traffic
Built 1916