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Iowa City Rail Bridge

Deck Plate Girder over Iowa River
Iowa City, Johnson County, Iowa

Click the Photo Above to See All Photos of This Bridge!
Name Iowa City Rail Bridge
Built By Chicago, Rock Island & Pacific Railroad
Contractor American Bridge Company of Chicago (Lassig Branch)
Contractor American Bridge Company of New York
Currently Owned By Iowa Interstate Railroad
Length 642 Feet Total, 80 Foot Largest Span
Width 1 Track, Piers Built for 2 Tracks
Height Above Ground 35 Feet (Estimated)
Superstructure Type Deck Plate Girder and Trestle
Substructure Type Concrete and Timber Pile
Date Built 1901
Traffic Count 6 Trains/Day (Estimated)
Current Status In Use
IAIS Bridge Number 6 Trains/Day (Estimated)
Significance Moderate Significance
Documentation Date September 2017


Perhaps the most prominent bridge in Iowa City is the large deck girder bridge crossing the Iowa River as well as US-6.
Built in 1901, this 8 span deck girder bridge sits high above the Iowa River on concrete substructures.
Replacing a four span deck truss, the current bridge once featured double tracks for the important Chicago-Des Moines mainline.
Both the Lassig Branch and New York plant of the American Bridge Company contributed to the construction of the bridge.
However, the second track would eventually be removed during or before the 1930s. It is very likely that those eight spans ended up serving on other structures.
On the east end, there is a three span approach serving as a jump span. Built of wooden trestles, it is possible this was installed as a result of a change of height of the bridge.
Overall, the bridge remains in relatively good condition. However, several components of the bridge; mainly the substructures are beginning to show signs of fatigue.

The author has ranked this bridge as being moderately significant, due to the large scale size of the bridge and the older age.
The photo above is an overview.

Iowa River Railroad Bridges
Upstream CIC Iowa River Bridge (North)
Downstream CIC Iowa River Bridge (South)

Citations

Source Type

Source

Build Date Date stamp
Contractor American Bridge Company plaque
Railroad Line History Source ICC Valuation Information, Compiled by Richard S. Steele