This is the longest pony truss bridge on the Route. It was featured in the film Grapes of Wrath. Near the west end of the bridge was where they shot the footage when Grandpa died.

This plaque on the other side of the bridge reads:

Oklahoma Federal Aid Project
No. 164-H

Wm. H. Murray - Governor
Oklahoma Highway Commission
H. N. Arnold Chairman
L. B. Selman Vice Chairman
L. V. Orton Member
Ed McDonald Member - Secretary
Chas. L. Wilson State Engineer
Homer X. white Bridge Engineer
C. W. McFerron Construction Engineer
E. S. Aloderman Resident Engineer

Kansas City Bridge Company
Contractors

Just east of the Canadian River you can see the red rock that extends southward toward Red Rock Canyon.