Little Sioux River

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110th Street Bridge (Dickinson County, Iowa)
Built ca. 1910; replaced by the current structure brought up from 180th Street 1999
Pony truss bridge over Little Sioux River on 110th Street
Open to traffic

110th Street Bridge (Old) (Dickinson County, Iowa)
Rehabilitated 1959; replaced 1999 with a bridge brought in from the 180th Street Crossing (See 110th Street Bridge)
Lost pony truss bridge over Little Sioux River on 110th Street
No longer exists

180th Street Bridge (Dickinson County, Iowa)
Built ca. 1920; rehabilitated 2001
Pony truss bridge over Little Sioux River on 180th Street
Open to traffic

200th Avenue Bridge (Clay County, Iowa)
Pratt through truss bridge over Little Sioux River on 200th Avenue
Removed but not replaced

485th Street Bridge (Clay County, Iowa)
Pratt pony truss bridge over Tributary of Little Sioux River on private road just off 485th Street
Closed to all traffic

Burned Bridge (O'Brien County, Iowa)
Collapsed under the weight of a snowplow 1967
Lost Through truss bridge over Little Sioux River on Yellow Avenue
Collapsed under the weight of a snowplow, remaining parts later burned (Based on the IA DNR naming the canoe access "Burned Bridge Access")

CN - Little Sioux River bridge (Cherokee County, Iowa)
Built 1947
Deck plate girder bridge over Little Sioux River on Railroad
Open to traffic

CNW - Little Sioux River Bridge (Brooke) (Buena Vista County, Iowa)
Removed 1980
Lost Deck plate girder bridge over Little Sioux River on Chicago & North Western Railway
Removed

CNW - Little Sioux River Bridge (Correctionville) (Woodbury County, Iowa)
Lost Quadrangular lattice through truss bridge over Little Sioux River on Railroad
Removed

Correctionville Bridge (Woodbury County, Iowa)
Lost Pratt through truss bridge over Little Sioux River on Road
Replaced by a new bridge on a new alignment

DM&E - Little Sioux River Bridge (Clay County, Iowa)
Built 1901;
Pony truss bridge over Little Sioux River on Dakota, Minnesota & Eastern Railroad
Open to traffic

Grand Avenue Bridge (Clay County, Iowa)
Built 1915; rehabilitated 1951; Replaced 2006
Lost concrete arch bridge over Little Sioux River on US 18/71 (Grand Avenue) in Spencer
Replaced by a new bridge

Hawkeye Highway Little Sioux River Bridge (Cherokee County, Iowa)
Lost Pratt through truss bridge over Little Sioux River on East Main Street/Hawkeye Highway
Replaced by a new bridge

IA31 Little Sioux River Deck Truss (Woodbury County, Iowa)
Built 1924; Replaced 1973
Lost Warren deck truss bridge over Little Sioux River on IA31
Replaced by a new bridge

IANW - Little Sioux River Bridge (Dickinson County, Iowa)
Abandoned since 2004
Abandoned timber stringer bridge over Little Sioux River on abandoned railroad (former IANW)
Derelict/abandoned with rails removed

IANW - West Branch Little Sioux River Arch (Dickinson County, Iowa)
Built 1900; abandoned 2004
Abandoned closed-spandrel arch bridge over West Branch Little Sioux River on former Iowa Northwestern Railroad
Derelict/abandoned with rails removed

IANW - West Fork Little Sioux River Bridge (Dickinson County, Iowa)
Abandoned since 2004
Abandoned deck plate girder bridge over West Fork Little Sioux River on abandoned railroad (former IANW)
Derelict/abandoned with rails removed

IC - Little Sioux River Bridge (Cherokee County, Iowa)
One truss span removed 1909, Replaced 1947
Lost Through truss bridge over Little Sioux River on Railroad
Replaced by a new bridge

IC - Little Sioux River Bridge #1 (Cherokee County, Iowa)
Built 1886, trestle approaches rebuilt 1918
Abandoned Pratt Through Truss Bridge over Little Sioux River on Abandoned Illinois Central Railroad
Abandoned

IC - Little Sioux River Bridge #2 (Cherokee County, Iowa)
Built 1887, trestle approaches updated 1960
Abandoned Pratt Through Truss Bridge over Little Sioux River on Abandoned Illinois Central Railroad
Abandoned

IC - Little Sioux River Bridge #3 (Woodbury County, Iowa)
Built 1887, trestle approaches updated 1918
Abandoned Pratt Through Truss Bridge over Little Sioux River on Abandoned Illinois Central Railroad
Abandoned

IC - Little Sioux River Bridge #4 (Woodbury County, Iowa)
Built 1886, 1881 Truss Spans added 1911, Mostly Removed Ca. 1999
Abandoned Pratt Through Truss Bridge over Little Sioux River on Abandoned Illinois Central Railroad
Most Removed but not replaced

Little Sioux River Bridge (Clay County, Iowa)
Built 1926; replaced 2005
Lost through truss bridge over Little Sioux River on 495th Street
No longer exists

Little Sioux River Bridge (Clay County, Iowa)
Built 1914; rehabilitated 1951, replaced 2006
Concrete arch bridge over Little Sioux River on US 18/US 71
Replaced by a new bridge

Little Sioux River Bridge (Dickinson County, Iowa)
Built ca. 1910; replaced 1999
Lost pony truss bridge over Little Sioux River on 120th Street
No longer exists

Little Sioux River Bridge (Harrison County, Iowa)
Built 1971; rehabilitated 1986
Through truss bridge over Little Sioux River on 120th Street
Open to traffic

Little Sioux River Bridge (Monona County, Iowa)
Built 1958
Through truss bridge over Little Sioux River on CR E60
Replaced by a new bridge

Little Sioux River Bridge (Monona County, Iowa)
Built 1958; replaced 2015
Lost through truss bridge over Little Sioux River on CR E54 (270th Street)
Replaced by a new bridge

Little Sioux River Bridge (Monona County, Iowa)
Built 1925; rehabilitated 1962
Through truss bridge over Little Sioux River on Oak Avenue
Open to traffic

Little Sioux River Bridge (Woodbury County, Iowa)
Built 1915; rehabilitated 1998
Through truss bridge over Little Sioux River on Mason Avenue (Mason Ave)
Open to traffic

Little Sioux River Bridge (Buena Vista County, Iowa)
Built 1940
Haunched deck plate girder bridge over Little Sioux River on Weaver Street
Open to traffic

Little Sioux River Pontoon Bridge (Cherokee County, Iowa)
Lost Pontoon bridge on Road
Replaced by a new bridge

M&StL - Little Sioux River Bridge (Spencer) (Clay County, Iowa)
Removed 1936
Lost Pratt through truss bridge over Little Sioux River on Minneapolis & St. Louis Railway
Replaced by a new bridge

M&StL - Sioux Rapids High Bridge (Buena Vista County, Iowa)
Built ca. 1909; Removed 1936
Lost Warren deck truss bridge over Little Sioux River on Minneapolis & St. Louis Railway
Removed

Main Street Bridge (Clay County, Iowa)
Built 1889, span added 1901, Replaced 1915
Lost Pennsylvania through truss bridge over Little Sioux River on Main Street (Now Renamed)
Replaced by a new bridge

Main Street Bridge (Old) (Cherokee County, Iowa)
Lost Pratt through truss bridge over Little Sioux River on Main Street
Destroyed by flooding

MILW - Little Sioux River Bridge (Woodbury County, Iowa)
Lost Pratt through truss bridge over Little Sioux River on Chicago, Milwaukee, St. Paul & Pacific Railroad
Removed

Okoboji Bridge (Dickinson County, Iowa)
Built in 1909 over the strait between West and East Okoboji Lakes, replaced in 1926 but the truss span was relocated to its present spot.
Pony truss bridge over a branch of Little Sioux River on 180th Avenue
Knocked off its foundation by flooding in 2011. Bridge taken out of the river and is currently sitting at the end of a dead-end road. Future unknown.

Old Rusty Bridge (Clay County, Iowa)
Built 1901 by the Clinton Bridge & Iron Works; relocated here in 1915
Through truss bridge over Little Sioux River on 210th Avenue north of Spencer in Spencer
Open to one-lane traffic

Peterson Bridge (Clay County, Iowa)
Lost Pratt through truss bridge over Little Sioux River on Road
Replaced by a new bridge

Pilot Rock Bridge (Cherokee County, Iowa)
Destroyed by Tornado 1893
Lost Pratt through truss bridge over Little Sioux River on Road
Destroyed by severe weather

Quimby Bridge (Cherokee County, Iowa)
Lost Pratt through truss bridge over Little Sioux River on Main Street
Replaced by a new bridge

River Sioux Bridge (Harrison County, Iowa)
Lost Pratt through truss bridge over Little Sioux River on Road
Replaced by a new bridge

Roosevelt Avenue Bridge (Plymouth County, Iowa)
Rehabilitated 1961
Pony truss bridge over West Fork Little Sioux River on Roosevelt Avenue
Open to traffic

Sioux Rapids Bridge (Buena Vista County, Iowa)
Built 1908
Lost Pennsylvania through truss bridge over Little Sioux River on Road
Replaced by a new bridge

Thunder Bridge (Clay County, Iowa)
Built 1905
Through truss bridge over Little Sioux River on 355th Street (Thunder Bridge Road) just off 4th Street in Spencer
Open to one-lane traffic

Union Trail - Little Sioux River Bridge (Woodbury County, Iowa)
Built 1887, 1881 Span Added 1911, Partially Removed Ca. 1999; Converted to Trail 2006
Pratt through truss bridge over Little Sioux River on the Union Bridge Trail
Open to pedestrians

UP - Little Sioux River Bridge (Harrison County, Iowa)
Built 1904
Lattice through truss bridge over Little Sioux River on Union Pacific Railroad
Open to traffic

UP - Webb High Bridge (Clay County, Iowa)
Built 1900
Abandoned double-intersection warren deck truss bridge over Little Sioux River on former Union Pacific Railroad
Derelict/abandoned with rails removed

US59 Little Sioux River Bridge (Cherokee County, Iowa)
Built 1929(?); Replaced 1973
Lost Pony/through plate girder bridge over Little Sioux River on US 59
Replaced by a new bridge

US71 Little Sioux River Bridge (Buena Vista County, Iowa)
Replaced 1973
Lost Haunched deck plate girder bridge over Little Sioux River on US71
Replaced by a new bridge

West 4th Street Bridge (Clay County, Iowa)
Built 1923; Replaced 1976
Lost Warren pony truss bridge over Little Sioux River on 350th Street
Replaced by a new bridge

West Fork Little Sioux River Bridge (Cherokee County, Iowa)
Built 1915, replaced 2005
Pony truss bridge over West Fork Little Sioux River on 480th Street
Replaced by a new bridge

West Fork Little Sioux River Bridge (Cherokee County, Iowa)
Built 1916
Pony truss bridge over West Fork Little Sioux River on B Avenue
Open to traffic

West Fork Little Sioux River Bridge (Cherokee County, Iowa)
Built 1939
Pony truss bridge over West Fork Little Sioux River on 470th Street
Open to traffic

West Fork Little Sioux River Bridge (Woodbury County, Iowa)
Built 1935
Pony truss bridge over West Fork Little Sioux River on 220th Street
Open to traffic