Little Falls Railroad Bridge (North)


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Name Little Falls Railroad Bridge (North)
Northern Pacific Railway Bridge #106
Built By Northern Pacific Railway
Currently Owned By BNSF Railway
Superstructure Contractors Unknown
Length 325 Feet Total, 160 Foot Spans
Width 1 Track
Height Above Ground 10 Feet (Estimated)
Superstructure Design Pratt Through Truss and Warren Through Truss
Substructure Design Stone Masonry
Date Built 1891 (west span)
c. 1900 (east span)
Traffic Count 1 Train/Day (Estimated)
Current Status In Use
Northern Pacific Railway Bridge Number 106
BNSF Railway Bridge Number 105.82
Significance Regional Significance
Documentation Date 11/23/2012; 4/1/2016


Located on the north side of Little Falls, this unique through truss bridge is the northern crossing of the Mississippi River in the city. Originally built in 1891, the bridge originally featured a pair of identical 160-foot 6-panel pin connected Pratt through truss spans, set onto stone substructures. During a derailment in 1974, the eastern of the two spans was destroyed, and a secondhand c. 1900 160-foot 10-panel riveted Warren through truss was installed. It is currently unknown where this span was moved from, although it is possible it may have originally been on a line near Spokane, Washington.

Railroads often reused spans from other locations to save costs. Truss spans such as this were often constructed to cross larger bodies of water, and required more intricate engineering. Overall, the bridge appears to be in fair condition, with some deterioration to the substructure noted. The author has ranked this bridge as being regionally significant, due to the truss design.


Citations

Build Date (west span) Northern Pacific Railway Historical Association Archives
Railroad History Citation ICC Valuation Information, Compiled by Richard S. Steele

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