Panhandle Tunnel - Bridges and Tunnels of Allegheny County and Pittsburgh, PA

Photo by Bob Rathke, 2/11/68, PA canal tunnel (left) and Panhandle RR tunnel during construction of U.S. Steel Building [USX Tower]

Panhandle Tunnel - Main information page

Panhandle Tunnel - Historic American Engineering Record documentation

Steel Plaza Subway Station

Photos from Library of Congress, Historic American Engineering Record (4/82):
South keystone portal and flanking retaining walls, view north;
Detail view of south keystone portal, view north;
Former south portal of the 79.4' tunnel extension;
Truncated tunnel at midtown subway site, view south

Photos from Library of Congress, Historic American Engineering Record (4/82):
General view of south tunnel from truncated wall;
West side of flanking retaining wall;
Safety bay located 207 ft from south portal;
Detail of west side of flanking retaining wall, showing tooling and deterioration of cut stone

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Introduction -- Nearby Structures

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Last modified: 27-Sep-2001

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