Hawarden Rail Bridge (South)

Quadrangular Through Truss Bridge over Big Sioux River
Hawarden, Sioux County, Iowa
To Rural Union County, South Dakota

Click the Photo Above to See All Photos of This Bridge!
Name Hawarden Rail Bridge (South)
Built By Chicago & North Western Railway
Contractor American Bridge Company of New York
Currently Owned By Dakota & Iowa Railroad
Length 1,093 Feet Total, 144 Foot Largest Span
Width 1 Track
Height Above Ground 10 Feet (Estimated)
Superstructure Type Quadrangular Through Truss and Deck Girder
Substructure Type Quadrangular Through Truss and Deck Girder
Date Built 1904, Girders Added 1913
Traffic Count 2 Trains/Day (Estimated)
Current Status In Use
DAIR Bridge Number 2601
Significance Moderately Significant
Documentation Date January 2016
A brief history of the Chicago & North Western line from Eagle Grove to Hawarden:


This large scale Quadrangular Through Truss Bridge crosses the Big Sioux River at Hawarden.

Built in 1904 and expanded in 1913, this bridge features riveted connections, and large A-Frame portals on the trusses. The trusses are different sizes as well, with two being 143' and one being 144'.
In addition, a long string of 13 deck girder spans approach on the west. It is set parallel to 10th Street.

All the substructures on the bridge are constructed of stone blocks. Overall, the bridge appears to be in very good condition.

The author has ranked the bridge as moderately significant, due to the age and the somewhat unique design. Long strings of Quadrangular Trusses are rarely seen in Iowa.

The photo above is an overview.

Big Sioux River Railroad Bridges
Upstream Hawarden Rail Bridge (North)
Downstream Elk Point Rail Bridge


Source Type


Main Span Build Date Chicago & North Western Historical Society Archives
Contractor Missing American Bridge Company Plaque
Railroad Line History Source ICC Valuation Information, Compiled by Richard S. Steele

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