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CN Inwood Avenue Bridge (Yetter)

Concrete Encased Steel Stringer Bridge over Inwood Avenue
Yetter, Calhoun County, Iowa

Click the Photo Above to See All Photos of This Bridge!
Name CN Inwood Avenue Bridge (Yetter)
Built By Illinois Central Railroad
Contractor Unknown
Currently Owned By Canadian National Railway
Length 78 Feet Total, 28 Foot 4 Inch Main Span
Width 1 Track
Height Above Ground 11 Feet 0 Inches
Superstructure Type Concrete Encased I-Beam and Concrete Slab
Substructure Type Concrete
Date Built 1928
Traffic Count 2 Trains/Day (Estimated)
Current Status In Use
CN Bridge Number 406.6
Significance Local Significance
Documentation Date December 2018


This small concrete encased I-Beam bridge crosses Inwood Avenue near Yetter.
Built in 1928, the bridge consists of a single concrete encased I-Beam span, set onto concrete substructures. A pair of concrete slab spans also approach the bridge on the east end, with a single concrete slab approaching on the west end.
The concrete encased beam span is typical of other bridges along this route. This span type allows for a much longer main span than a typical slab span.
Overall, the bridge appears to be in fair condition. Some deterioration was noted on the bridge.

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

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