UP US-65 Bridge (Colo)

I-Beam Bridge over US Highway 65
Colo, Story County, Iowa

Click the Photo Above to See All Photos of This Bridge!
Name UP US-65 Bridge (Colo)
Built By Chicago & North Western Railway
Contractor (Superstructure) McClintic-Marshall Company of Pittsburgh
Contractor (Substructure) Zitterell-Mills Company of Webster City, Iowa
Currently Owned By Union Pacific Railroad
Length 93 Feet Total, 31 Foot Spans
Width 2 Tracks
Height Above Ground 14 Feet 1 Inch
Superstructure Type I-Beam
Substructure Type Steel Tower and Concrete
Date Built 1934
Traffic Count 75 Trains/Day (Estimated)
Current Status In Use
C&NW Bridge Number 525
Significance Minimal Significance
Documentation Date January 2022
A brief history of the Chicago & North Western Iowa Division mainline, now part of the Overland Route:


This simple beam bridge crosses US-65 in Colo, near Historic Niland's Corner.
The bridge is simply composed, with three I-Beam spans. These rest on concrete abutments and steel bents.
It is very likely that this traditionally built bridge was designed by the State of Iowa. A similar structure exists in State Center.
Overall, the bridge appears to be in good condition.

Historic Photo
Historic photo of the bridge. Credit to PhotoLibrarian on Flickr, used with Creative Commons permission.

The author has ranked this bridge as being minimally significant, due to the common design and modern build date.
The photo above is an overview.


Source Type


Build Date Date Stamp
Railroad Line History Source ICC Valuation Information, Compiled by Richard S. Steele

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