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Fort Riley Rail Bridge

Quadrangular Through Truss Bridge over Republican River
Junction City, Geary County, Kansas

Click the Photo Above to See All Photos of This Bridge!
Name Fort Riley Rail Bridge
Built By Union Pacific Railroad
Contractor Lassig Bridge & Iron Works of Chicago
Currently Owned By Union Pacific Railroad
Length 276 Feet Total, 138 Foot Spans
Width 1 Track
Height Above Ground 15 Feet (Estimated)
Superstructure Type Quadrangular Through Truss
Substructure Type Concrete and Stone Masonry
Date Built 1901
Traffic Count 3 Trains/Day (Estimated)
Current Status In Use
UP Bridge Number 137.18
Significance Regional Significance
Documentation Date March 2017


This large bridge crosses the Republican River near its mouth at the Smoky Hill River.
Set at the very east end of public property, the bridge lies next to Fort Riley, a major army installation.
The bridge features a pair of riveted Quadrangular Through Trusses. This design of truss is relatively rare in Kansas and Missouri.
Reportedly built in 1901, the bridge has had little alteration since construction. The one alteration is the replacement of the original portal bracings to be able to accommodate larger trains.
The bridge rests on stone substructures, and is easy to access from a boat launch.
In addition, it appears some portions of the bridge were rebuilt in 1946. The west abutment features an encased design, with a 1946 stamp. A missing Lassig Bridge & Iron Works plaque confirms the builder.
The bridge remains in great condition and is well maintained, although is not part of the busiest mainline across Kansas.

Historic Photo
Historic photo of the bridge

The author has ranked this bridge as being regionally significant, due to the low number of Quadrangular Trusses in the region.
The photo above is an overview. The bridge can be accessed from a parallel road.

Republican River Railroad Bridges
Upstream KYLE Republican River Bridge (Clyde)
Downstream Mouth At Smoky Hill River

Citations

Source Type

Source

Build Date Union Pacific Railroad Annual Report
Contractor Missing Lassig Bridge & Company Plaque
Railroad Line History Source ICC Valuation Information, Compiled by Richard S. Steele