Source:Cridlebaugh-28th
From Pittsburgh Streets
Bruce S. Cridlebaugh. "Twenty-Eighth Street Bridge over PRR." Pghbridges.com: Bridges & tunnels of Allegheny County & Pittsburgh, PA, June 18, 2004. http://pghbridges.com/pittsburghE/0587-4478/28thst_prr.htm.
