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Philip Rail Bridge

Historic Pony Truss Bridge over N. Fork Bad River
Philip, Haakon County, South Dakota

Click the Photo Above to See All Photos of This Bridge!
Name Philip Rail Bridge
Built By Chicago & North Western Railway
Contractor Unknown
Currently Owned By Rapid City, Pierre & Eastern Railroad
Length 170 Feet Total, 84 Foot Main Span
Width 1 Track
Height Above Ground 15 Feet (Estimated)
Superstructure Type Double Intersection Warren Pony Truss and Trestle
Substructure Type Steel Caisson and Timber Pile
Date Built Ca. 1885
Date Relocated Unknown
Original Location Unknown
Date Lost January 27th, 2022
Traffic Count 0 Trains/Day (Bridge has been replaced)
Current Status Destroyed by Derailment
RCP&E Bridge Number 1697
Significance Regional Significance


This small pony truss bridge crossed a branch of the Bad River on the western edge of the town of Philip.
Likely built in approximately 1885 at another location, the bridge was moved here sometime between 1918 and 1930.
This design of Double Intersection Warren Pony Truss was once exceedingly common along the Chicago & North Western system. At a length of 84 feet long, this design was standardized.
Many of these types of trusses were later rebuilt to carry roads over mainlines. However, some survived in original form and were moved to branch lines.
As it last stood, the bridge featured an 84 foot long Double Intersection Warren Pony Truss with riveted connections. It is set onto steel caisson piers and approached by trestle spans on either side.
An approximate date of 1885 has been given for the original construction date. It is currently unknown where the span was relocated from. Unfortunately, using deduction or logical reasoning to assume a location is not possible, due to the sheer number of spans like this constructed.
Overall, the bridge appeared to be in good condition. The approaches were rebuilt less than a decade ago. Unfortunately, this unique bridge was destroyed by a derailment in January 2022.

The author has ranked this bridge as being regionally significant, due to the relocation history and older age.
The photo above is an overview.

Citations

Source Type

Source

Build Date Estimated based on similar trusses
Relocated Date Information unknown
Builder Information unknown
Main Span Original Location Information unknown
Railroad Line History Source ICC Valuation Information, Compiled by Richard S. Steele