Source:43rd-st-bridge-cridlebaugh
From Pittsburgh Streets
Bruce S. Cridlebaugh. "43rd St Bridge 1870." Pghbridges.com: Bridges & tunnels of Allegheny County & Pittsburgh, PA, Nov. 16, 2000. http://pghbridges.com/pittsburghE/0587-4480/43rd.htm.
Bruce S. Cridlebaugh. "43rd St Bridge 1870." Pghbridges.com: Bridges & tunnels of Allegheny County & Pittsburgh, PA, Nov. 16, 2000. http://pghbridges.com/pittsburghE/0587-4480/43rd.htm.