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CN Boyer River Bridge #1

Through and Deck Plate Girder Bridge over Boyer River
Deloit, Crawford County, Iowa

Click the Photo Above to See All Photos of This Bridge!
Name CN Boyer River Bridge #1
Built By Illinois Central Railroad
Contractor (Main Span) American Bridge Company of New York
Currently Owned By Canadian National Railway
Length 137 Feet Total, 77 Foot Main Span
Width 1 Track
Height Above Ground 15 Feet (Estimated)
Superstructure Type Through and Deck Plate Girder
Substructure Type Concrete
Date Built 1900, Rebuilt 1954
Traffic Count 2 Trains/Day (Estimated)
Current Status In Use
CN Bridge Number 439.4
Significance Local Significance
Documentation Date December 2018

Located north of Deloit, this bridge is the first crossing of the Boyer River along this route.
Originally built in 1900, the bridge originally consisted of three deck girder spans. However, the center span was replaced in 1954 due to flooding and channelizing. The entire bridge rests on concrete substructures.
There are numerous similar bridges along the route. It also appears that the bridge was raised in 1954, and the piers are a combination of older and newer concrete.
Overall, the bridge appears to be in good condition. Since 1954, little alterations have been made to the bridge.

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

Boyer River Railroad Bridges
Upstream CN Boyer River Bridge (Wall Lake)
Downstream CN Boyer River Bridge #2

Citations

Source Type

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