HAER transcribed from documents in the collection of the Library of Congress
view page - Bessemer and Lake Erie Railroad, Allegheny River Bridge (HAER PA-508); Justin M. Spivey, April 2000; Pennsylvania Historic Railroad Bridges Recording Project
view page - Coraopolis Bridge 1892-1927; Sixth St Bridge 1927-1994 (HAER PA-217); P.A.C. Spero & Company, 1989
view page - Cork Run Tunnel [Berry Street Tunnel] (HAER PA-382); Christine Davis and Frank Kurtik; Christine Davis Consultants, Inc.
view page - Davis Avenue Bridge -- over Woods Run (HAER PA-487), Haven Hawley, August 1998; Pennsylvania Historic Bridges Recording Project - II
view page - Larimer Avenue Bridge (HAER PA-488); Haven Hawley, August 1998 / Pennsylvania Historic Bridges Recording Project - II.
view page - Liberty Bridge (HAER PA-448); J. Philip Gruen, August 1997 / Pennsylvania Historic Bridges Recording Project - I.
view page - Herr's Island South Railroad Bridge, West Penn RR (HAER PA-443); Christine Davis, Christine Davis Consultants, Inc.
view page - McKee's Rocks Bridge (HAER PA-445); Dr. David S. Rotenstein, August 1997 / Pennsylvania Historic Bridges Recording Project - I.
view page - Monongahela Connecting Railroad, Main Bridge (HAER PA-277-B); Richard L. McCombs, Monongahela Connecting Railroad Company
view page - Monongahela Connecting Railroad, J&L Steel Hot Metal Bridge (HAER PA-277-C); Richard L. McCombs, Monongahela Connecting Railroad Company
view page - Panther Hollow Bridge (HAER PA-489); Haven Hawley, August 1998 / Pennsylvania Historic Bridges Recording Project - II.
view page - Pittsburgh & Steubenville Extension (Panhandle) Railroad Tunnel (HAER PA-70); Pittsburgh, 1985
view page - "Pittsburgh Bridges at the Point" (HAER PA-3); James D. Van Trump, Pittsburgh, 1974
view page - "A Trinity of Bridges: The Smithfield Street Bridge over the Monongahela River at Pittsburgh" (HAER PA-2); James D. Van Trump, Pittsburgh, 1974
view page - "Three Sisters Bridges" Sixth, Seventh and Ninth streets over the Allegheny River (HAER PA-490); Haven Hawley, August 1998; Pennsylvania Historic Bridges Recording Project - II
view page - Washington Crossing Bridge -- 40th Street over the Allegheny River (HAER PA-447), Dr. David S. Rotenstein, et al, 1997 / Pennsylvania Historic Bridges Recording Project - I.
view page - West End-North Side Bridge (HAER PA-96), Pittsburgh, PA; William P. McHugh, Ph. D., 1985