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CN Bridge #458.8

Relocated Deck Plate Girder Bridge over Unnamed Creek
Dow City, Crawford County, Iowa

Click the Photo Above to See All Photos of This Bridge!
Name CN Bridge #458.8
Built By Illinois Central Railroad
Contractor Unknown
Currently Owned By Canadian National Railway
Length 80 Feet Total, 51 Foot Main Span
Width 1 Track
Height Above Ground 10 Feet (Estimated)
Superstructure Type Deck Plate Girder and Concrete Slab
Substructure Type Concrete
Date Fabricated Ca. 1900
Date Erected 1919
Traffic Count 2 Trains/Day (Estimated)
Current Status In Use
CN Bridge Number 458.8
Significance Local Significance
Documentation Date December 2018


Located near Dow City, this deck girder bridge was relocated to this location.
Built in 1919, the bridge features a single deck girder main span that was built in approximately 1900. This span bears no resemblance to other standard girders on the route, indicating it may have been moved from a further location. It is approached by concrete slab spans, and is set onto concrete substructures.
When this girder was moved, it appears that it was extensively rebuilt with new bracings. The structure was erected by company forces of the Illinois Central.
Overall, the bridge appears to be in good to fair condition. The approach spans have begun to deteriorate.

The author has ranked the bridge as being locally significant, due to the common design.
The photo above is an overview.

Citations

Source Type

Source

Erection Date 1973 Illinois Central Railroad Track Profile
Railroad Line History Source ICC Valuation Information, Compiled by Richard S. Steele