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Sowell's Bluff Bridge

State Highway 78 Bridge

Sowell's Bluff Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: August 2, 2019

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Key Facts

Facility Carried / Feature Intersected
OK-78 and TX-78 Over Red River
Location
Rural: Bryan County, Oklahoma and Fannin County, Texas: United States
Structure Type
Metal 10 Panel Rivet-Connected K-Parker Through Truss, Fixed and Approach Spans: Metal 5 Panel Rivet-Connected Camelback Pony Truss, Fixed
Construction Date and Builder / Engineer
1938 By Builder/Contractor: Kansas City Bridge Company of Kansas City, Missouri and Engineer/Design: Oklahoma Highway Commission

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
210 Feet (64 Meters)
Structure Length
2,108 Feet (643 Meters)
Roadway Width
25 Feet (7.62 Meters)
Spans
8 Main Span(s) and 4 Approach Span(s)
NBI Number
065910000000000

Historic Significance Rating (HSR)

Bridge Documentation

This bridge's future is at risk!

Bridge Status: Bridge is being replaced and this historic bridge will be demolished at the end of the project!

This is one of the longest known K-truss bridges in the entire country. Although its sits on the state line, the heritage of this bridge is an Oklahoma bridge. Designed by Oklahoma engineers, it includes the state's unique K-Parker through truss spans for main spans, and the state's standard pony truss approach spans, two at each end. Oklahoma has decimated its historic bridge population with completely unrelenting demolition. As of 2020, this is one of the last surviving K-truss bridges, and it was always one of the largest. Yet this bridge is being replaced and will be demolished after the replacement is complete. The bridge can carry truck traffic. This bridge absolutely should have been left standing for pedestrian use next to its replacement bridge. It is one of the most significant historic bridges in Oklahoma.

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

View Historic Bridge Inventory Sheet For This Bridge

View National Register of Historic Places Nomination Form For This Bridge

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Photo Galleries and Videos: Sowell's Bluff Bridge

 
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Bridge Photo-Documentation
Original / Full Size Photos
A collection of overview and detail photos. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer
View Photo Gallery
Bridge Photo-Documentation
Mobile Optimized Photos
A collection of overview and detail photos. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer
View Video
Driving Over Bridge
Full Motion Video
Note: The downloadable high quality version of this video (available on the video page) is well worth the download since it offers excellent 1080 HD detail and is vastly more impressive than the compressed streaming video. Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.

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Maps and Links: Sowell's Bluff Bridge

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