Summit Road Trail Bridge

I-Beam Bridge over Summit Road (County Road E29)
Marshalltown, Marshall County, Iowa

Click the Photo Above to See All Photos of This Bridge!
Name Summit Road Trail Bridge
Built By Minneapolis & St. Louis Railway
Contractor Unknown
Currently Owned By Marshall County
Length 87 Feet Total, 43 Foot Main Span
Width 1 Track
Height Above Ground 15 Feet (Estimated)
Superstructure Type I-Beam
Substructure Type Concrete
Date Built 1931
Traffic Count 0 Trains/Day (Bridge is a Trail)
Current Status Rails to Trails
M&StL Bridge Number 300
Significance Local Significance
Documentation Date December 2018
A brief history of the Minneapolis & St. Louis mainline from Mason City to Peoria and Albia:


This standard I-Beam bridge crosses Summit Street in the northern part of Marshalltown.
Built in 1931, the bridge features a pair of I-Beam spans, set onto concrete substructures.
It is unknown why a second I-Beam span was added, but it may indicate there was once a desire to widen the road.
Overall, the bridge appears to be in good condition. The bridge was repaired and fencing added in approximately 2017. It now carries the Iowa River Rail Trail.

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


Source Type


Build Date 1992 National Bridge Inventory
Railroad Line History Source ICC Valuation Information, Compiled by Richard S. Steele

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