Library of Congress hasn't ever posted the HAER photos for this bridge, but I got scans from MoDOT and posted them here. They aren't as high quality, but they will get the job done, since LOC often takes years to get photos online.
Also, I added photos and State Level Recordation narratives for three other bridges on this expressway in St. Louis County. All were beautiful Art Deco overpasses that MoDOT pulverized into rubble. So much for Missouri's "Merritt Parkway"
This bridge has been demolished. Photos of the demolition and construction of the new bridge are available on:
Thanks for the photos, Nathan!