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O'Brien County

Burned Bridge [Map]
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")
Collapsed under the weight of a snowplow 1967

CNW - Mill Creek Bridge [Map]
Lost Bridge over Mills Creek on Chicago & North Western Railroad
Removed but not replaced; abutments and supports remain

CNW - Small Stream Bridge [Map · Street View]
Lost Bridge over Small Stream on Railroad (CNW)
No longer exists; Stone abutments remain

CNW/IC Overpass [Map]
Lost Through truss bridge over Illinois Central Railroad on Chicago & North Western Railway
Removed

Cole Creek Bridge [Map]
Lost concrete arch bridge over Cole Creek on a local road
Replaced by new bridge
Built 1929; replaced 1998

Dog Creek Bridge [Map]
Pony truss bridge over Dog Creek on a field entrance
Open to traffic
Built 1900

Dry Run Bridge [Map]
Pony truss bridge over Dry Run on Redwood Avenue
Open to traffic
Rehabilitated 1951

Dry Run Bridge [Map]
Pony truss bridge over Dry Run on Polk Avenue
Open to traffic
Built 1925

Dry Run Creek Bridge [Map]
Pony truss bridge over Dry Run Creek on Redwood Avenue
Open to traffic
Built 1924

Floyd River Bridge [Map]
Pony truss bridge over Floyd River on Nettle Avenue (Nettle Ave)
Open to traffic
Rehabilitated 1954

Floyd River Bridge [Map]
Pony truss bridge over Floyd River on Olive Avenue
Open to traffic
Built 1995

Ginger Creek Bridge [Map]
Pony truss bridge over Ginger Creek on 450th Street
Open to traffic
Rehabilitated 1955

Little Floyd River Bridge [Map]
Pony truss bridge over Little Floyd River on Nest Avenue (Nest Ave)
Replaced by a new bridge
Built 1918, Replaced 2012

Little Waterman Creek Bridge [Map]
Pony truss bridge over Little Waterman Creek on 390th Street
Open to traffic
Built 1937

Little Waterman Creek Bridge [Map]
Pony truss bridge over Little Waterman Creek on Warbler Avenue
Open to traffic; Doomed
Rehabilitated 1949

Mill Creek Bridge [Map]
Pony truss bridge over Mill Creek on 450th Street
Open to traffic
Built 1924

Mill Creek Bridge [Map]
Through truss bridge over Mill Creek on Polk Avenue
Open to traffic
Built 1924

Mill Creek Bridge [Map]
Pony truss bridge over Mill Creek on Polk Avenue
Open to traffic
Built 1918; rehabilitated 1938

Mill Creek Bridge [Map]
Pony truss bridge over Mill Creek on Polk Avenue
Open to traffic
Built 1924

Murray Creek Bridge [Map]
Pony truss bridge over Murray Creek on Warbler Avenue
Open to traffic
Built 1900

Redwing Avenue Bridge [Map]
Pony truss bridge over South Branch Little Floyd River on Redwing Avenue
Replaced by a new culvert
Rehabilitated 1949

Rock Island House/Bridge [Map]
Timber stringer bridge over Plessis Creek on House
Open to pedestrians only

Sweeney Creek Bridge [Map]
Pony truss bridge over Sweeney Creek on CR B20 (330th Street)
Replaced by a new bridge
Rehabilitated 1952, Replaced 2013

Warbler Avenue Bridge [Map]
Arch bridge over an unnamed creek on Warbler Avenue
Open to traffic
Built 1900

Waterman Creek Bridge [Map · Street View]
Pony truss bridge over Waterman Creek on CR B53 (460th Street)
Open to traffic
Built 1915

Waterman Creek Bridge [Map]
Pony truss bridge over Waterman Creek on 420th Street
Open to traffic
Built ca. 1920; rehabilitated 1937

Waterman Creek Bridge [Map]
Pony truss bridge over Waterman Creek on 340th Street
Open to traffic
Built 1923

Waterman Creek Road Bridge [Map]
Pony truss bridge over Waterman Creek on Wilson Avenue
Open to traffic
Built 1900

Watermann Creek Bridge [Map]
Pony truss bridge over Watermann Creek on 350th Street
Open to traffic
Built 1918

Willow Creek Bridge [Map]
Pony truss bridge over Willow Creek on Silver Avenue
Open to traffic
Built 1925

Willow Creek Bridge [Map]
Pony truss bridge over Willow Creek on 480th Street
Open to traffic
Built 1914; rehabilitated 1954

Willow Creek Bridge [Map]
Pony truss bridge over Willow Creek on Sorrel Avenue
Open to traffic
Built 1926

Willow Creek Road Bridge [Map]
Pony truss bridge over Willow Creek on Starling Avenue
Open to traffic
Built 1916

Wilson Avenue Bridge [Map]
Pony truss bridge over an unnamed creek on Wilson Avenue
Open to traffic
Built 1900