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UP Floyd River Bridge

Deck Plate Girder Bridge over Floyd River
Sheldon, O'Brien County, Iowa

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Name UP Floyd River Bridge
Built By Chicago, St. Paul, Minneapolis & Omaha Railway
Contractor American Bridge Company of New York
Currently Owned By Union Pacific Railroad
Length 171 Feet Total, 40 Foot Main Spans
Width 1 Track
Height Above Ground 10 Feet (Estimated)
Superstructure Type Deck Plate Girder and Trestle
Substructure Type Concrete and Timber Pile
Date Built 1922
Traffic Count 4 Trains/Day (Estimated)
Current Status In Use
C&NW Bridge Number 728
UP Bridge Number 210.16
Significance Local Significance
Documentation Date November 2019


Located north of Sheldon, this deck girder bridge crosses the Floyd River along 2nd Avenue.
Built in 1922, the bridge consists of a three deck girder spans, set onto concrete substructures. These girder spans appear to be similar to girder beams, a type of steel stringer. In addition, the bridge is approached by three trestle jump spans on the north end, likely due to a washout behind the north abutment.
It appears that this bridge is in similar condition to when it was built, with the exception of the jump spans. This is one of the few bridges to still have a plaque on this line. It is likely that this bridge replaced either a trestle or small truss bridge.
Overall, the bridge appears to be in good condition, with minor spalling noted along the substructures.

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 Plaque
Railroad Line History Source ICC Valuation Information, Compiled by Richard S. Steele