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Historic Bridges: Boone County, Iowa

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S  - Dismantled and/or in storage. L -  Severe loss of historic integrity due to alteration.

Total Bridges Found: 3

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110th Street Bridge
Iowa Bridge Number 78120
HSRNational HSR. Local HSR.
Click to visit page.
110th Street (U Avenue) Over Squaw Creek in Rural: Boone County, Iowa, United States
Concrete Marsh Rainbow Through Arch, Fixed
Length: 88 ft. Main Span: 60 ft. Roadway: 17.1 ft. Main Spans: 1
Built 1918 By: Marsh Engineering Company of Des Moines, Iowa
A beautiful and well-preserved example of a rare and significant Marsh rainbow arch bridge.
L Avenue Bridge
Iowa Bridge Number 77840, Chicago NorthWestern Railroad Bridge Bridge 1657
HSRNational HSR. Local HSR.
Click to visit page.
L Avenue Over Railroad (Union Pacific) in Rural: Boone County, Iowa, United States
Metal Rivet-Connected Double-Intersection Warren Pony Truss, Fixed and Approach Spans: Wood Stringer (Multi-Beam), Fixed
Length: 130 ft. Main Span: 47 ft. Roadway: 17.7 ft. Main Spans: 1
Built By: Unknown
A noteworthy example of a railroad-designed highway over railroad truss bridge.
X
Wagon Wheel Bridge
Iowa Bridge Number 77850
HSRNational HSR. Local HSR.
Click to visit page.
200th Street Over Des Moines River in Rural: Boone County, Iowa, United States
Metal 12 Panel Pin-Connected Pennsylvania Through Truss, Fixed and Approach Spans: Wood Stringer (Multi-Beam), Fixed
Length: 703 ft. Main Span: 200 ft. Roadway: 16 ft. Main Spans: 4
Built 1911 By: Iowa Bridge Company of Des Moines, Iowa
This unique bridge is an extremely rare bridge that contains a variety of pin-connected through truss span designs.

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