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DM&E Root River Bridge

Pratt Pony Truss Bridge over Root River
La Crescent, Houston County, Minnesota

Click the Photo Above to See All Photos of This Bridge!
Name DM&E Root River Bridge
Built By Chicago, Milwaukee & St. Paul Railway
Contractor Unknown
Currently Owned By Dakota, Minnesota & Eastern Railway
Length 285 Feet Total, 125 Foot Main Span
Width 1 Track
Height Above Ground 10 Feet (Estimated)
Superstructure Type Pratt Pony Truss and I-Beam
Substructure Type Concrete
Date Built 1901
Traffic Count 8 Trains/Day (Estimated)
Current Status In Use
MILW Bridge Number K-702
Significance Moderate Significance


Located south of La Crescent, this two span pony truss bridge crosses the Root River along Minnesota Highway 26.
Built in approximately 1901, the bridge features a pair of standardized 6-panel pin connected Pratt Through Trusses. These trusses are approached by a steel stringer bridge on the south, and the whole bridge sits on concrete substructures.
Trusses like these were common for medium sized spans along the Milwaukee Road system. Easy to construct and cheap, they were a favorite of the Milwaukee Road. When the bridge was originally built, it was approached by concrete girder spans on either side. However, these were replaced after 1918.
Overall, the bridge appears to be in good condition. Recent stabilization to the structure has been done.

The author has ranked this bridge as being locally significant, due to the truss design.
The photo above is an overview.

Root River Railroad Bridges
Upstream MILW Root River Bridge
Downstream Confluence With Mississippi River

Citations

Source Type

Source

Build Date Estimated based on similar bridges
Railroad Line History Source ICC Valuation Information, Compiled by Richard S. Steele