Four-level stack interchange in Pittsburgh, Pennsylvania
Birmingham Interchange
Bottom level: Brady Avenue (perspective #1)
Photo taken by Brianna Tarness
The interchange is where Interstate 376 (Parkway East/Penn-Lincoln Highway), PA-885 (Boulevard of the Allies), and the Birmingham Bridge over the Monongahela River all intersect.
The bottom level of the interchange is formed by Brady Avenue, a local surface street connecting Second Street to Forbes Avenue through the interchange. The Three Rivers Hertiage Trail also runs through the interchange - underneath the main flyover bridges in a small alleyway.