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CN E. Fork Boyer River Bridge

Through Plate Girder Bridge over E. Fork Boyer River
Denison, Crawford County, Iowa

Click the Photo Above to See All Photos of This Bridge!
Name CN E. Fork Boyer River Bridge
Built By Illinois Central Railroad
Contractor American Bridge Company of New York
Currently Owned By Canadian National Railway
Length 175 Feet Total, 79 Foot Main Span
Width 1 Track
Height Above Ground 15 Feet (Estimated)
Superstructure Type Through Plate Girder and I-Beam
Substructure Type Steel Pile
Date Built 1966
Traffic Count 2 Trains/Day (Estimated)
Current Status In Use
CN Bridge Number 449.1
Significance Minimal Significance
Documentation Date December 2018


Located in Denison, this standard through girder bridge crosses the East Boyer River.
Built in 1966, the bridge features a single through girder main span. In addition, the approaches on the bridge consist of steel stringer spans, and the substructures consist of steel piles.
When the route was constructed, the original bridge here was a three span through girder. However, it is apparent that the river was channelized, requiring the need for a different bridge.
Overall, the bridge appears to be in good condition. Portions of the old bridge abutments can be seen below the current bridge.

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

Citations

Source Type

Source

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