Homestead Grays Bridge, built in 1936, was formerly called the Homestead High Level Bridge. I Pulled into a parking space to shoot the underbelly Wednesday night. The blue light against the night sky. The bridge spans the Monongahela River but this part is over the Waterfront shopping area.
“It is notable as the first bridge to incorporate the Wichert Truss, which uses a quadrilateral shape over each support, into its design. This made the truss statically determinate, so that forces in the structural members could be calculated.” Wikipedia
A 2017 blog post I did of bridges going over the Monongahela shows a different view of this same bridge.