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Mandan Rail Bridge (N)

Pratt Through Truss Bridge over Heart River
Mandan, Morton County, North Dakota

Click the Photo Above to See All Photos of This Bridge!
Name Mandan Rail Bridge (N)
Built By Northern Pacific Railroad
Contractor American Bridge Company of New York
Currently Owned By Fort Lincoln Trolley
Length 200 Feet Total
Width 1 Track
Height Above Ground 34 Feet (NP Measurement)
Superstructure Type Pratt Through Truss
Substructure Type Concrete
Date Built 1910
Traffic Count Less than 1 Train/Day (Estimated)
Current Status Used Sparingly
NP Bridge Number 0
Significance Moderate Significance
Documentation Date May 2017


This large through truss bridge crosses the Heart River in Mandan.
Originally built in 1910, the bridge features a single pin connected Pratt Through Truss span.
With no approaches, the bridge sits on concrete abutments. Using a standardized design, the bridge features 8 panels.
Overall, the bridge remains in very good condition. The structure has changed very little since it was first constructed in 1910.

The author has ranked this bridge as being moderately significant, due to the lack of historic railroad truss bridges in North Dakota.
The photo above is an overview. The bridge can be accessed by walking down the railroad, which also appears to serve as a nature trail for Mandan residents.

Citations

Source Type

Source

Build Date Northern Pacific Bridge Book, provided by Northern Pacific Railway Historical Association
Builder American Bridge Company plaque
Railroad Line History Source ICC Valuation Information, Compiled by Richard S. Steele