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Carroll County Road 323 Overpass

Relocated Pratt Pony Truss Bridge over BNSF Railway
Near Bosworth, Carroll County, Missouri

Click the Photo Above to See All Photos of This Bridge!
Name Carroll County Road 323 Overpass
Built By Atchison, Topeka & Santa Fe Railway
Contractor Unknown
Currently Owned By Carroll County
Length 212 Feet Total, 83 Foot Span
Width 1 Road Lane (1 Track)
Height Above Ground 25 Feet (Estimated)
Superstructure Type Pratt Pony Truss and Timber Stringer
Substructure Type Concrete and timber pile
Date Built Ca. 1888
Date Relocated 1911
Original Location Unknown
Removal Date 2020
Traffic Count 0 Trains/Day (Bridge has been removed)
Current Status Removed but not replaced
ATSF Bridge Number 375A
Significance Moderate Significance
Documentation Date October 2016


Hidden on a back road of Carroll County was this gem of a bridge.
This rather small sized Pratt Pony Truss was relocated from another bridge, in an unknown location.
Clayton Fraser, who did the Missouri Historic Bridge Inventory recorded this bridge as having been built in 1906. However, Santa Fe records indicate the bridge was actually erected in 1911.
Unlike the nearby County 314 Overpass, the original use of this bridge was less clear. Underneath, timber stringers had replaced any evidence of former railroad use.
Despite this, it seems highly likely that this was a former railroad span. Unfortunately, the original location remains unclear. If it was indeed relocated from the Chicago-Kansas City mainline, it likely was built between 1886 and 1888.
The five panel Pratt Pony Truss span featured pinned connections. It rested on concrete piers and is approached by aging timber stringer spans.
Reportedly, the Santa Fe also did deck work on the bridge in 1929. This may be the reasoning for the non-original stringers.
Unfortunately, this bridge was removed but not replaced in 2020. Unlike the County Road 314 bridge, it seems unlikely that this bridge was preserved by private citizens.

The author has ranked this bridge as being moderately significant, due to the unique history and uncertain details.
The photo above is an overview from track level.

Citations

Source Type

Source

Build Date Estimated
Relocation Date Atchison, Topeka & Santa Fe Railway 1984 Bridge Records
Railroad Line History Source ICC Valuation Information, Compiled by Richard S. Steele