Map - Key to Photograph Locations

Map - Site Plan (USGS)

HISTORIC AMERICAN ENGINEERING RECORD
INDEX TO PHOTOGRAPHS

Photographer: (Views 1-27) Robert C. Shelley April 1989
P.A.C. Spero & Company

PA-217-1 DISTANT VIEW FROM SOUTHWEST, SHOWING ENVIRONMENT

PA-217-2 WEST ELEVATiON, SHOWING ENTIRE STRUCTURE: PENNSYLVANIA TRUSS MAIN SPANS AND PONY TRUSS APPROACH SPANS

PA-217-3 WEST ELEVATION, PENNSYLVANIA TRUSS MAIN SPANS

PA-217-4 WEST ELEVATION, SOUTH TRUSS

PA-217-5 WEST ELEVATION, NORTH TRUSS

PA-217-6 EAST ELEVATION, MAIN SPANS

PA-217-7 EAST ELEVATION, OBLIQUE VIEW FROM SOUTHEAST

PA-217-8 WEST ELEVATION, PONY TRUSS OVER PENNSYLVANIA & LAKE ERIE RAILROAD

PA-217-9 NORTH APPROACH, FROM NORTH

PA-217-10 SOUTH APPROACH, FROM SOUTH

PA-217-11 DETAIL, NORTH PORTAL VIEW, FROM NORTH

PA-217-12 INTERIOR, PONY TRUSSES, VIEWED THROUGH SOUTH PORTAL, FROM NORTHEAST

(continued)

Index to Photographs
CORAOPOLIS BRIDGE
HAER NO. PA-217 (Page 2)

PA-217-13 INTERIOR, PONY TRUSS, 08LIQUE VIEW FROM NORTHEAST

PA-217-14 DETAIL, TYPICAL END PANEL, INTERIOR, FROM EAST

PA-217-15 DETAIL, TYPICAL CENTER PANEL, EXTERIOR VIEW FROM WEST

PA-217-16 DETAIL, VERTICAL MEMBER, L2-U2 FROM BELOW AND EAST, UNUSUALLY SHAPED DESIGN REFLECTS COLUMN STRESSES -- ALSO NOTE LACING, WHICH COMPRISES ANGLES RATHER THAN COMMON FLAT BARS

PA-217-17 DETAIL, INTERMEDIATE JOINT, L7-U7, FROM BELOW AND NORTHEAST

PA-217-18 DETAIL, UPPER JOINT, U2, FROM BELOW AND SOUTHEAST

PA-217-19 DETAIL, INTERMEDIATE JOINT, L5-U5, FROM EAST

PA-217-20 DETAIL, NORTH PORTAL ORNAMENTATION AND LATERAL BRACING, FROM BELOW

PA-217-21 DETAIL, LOWER JOINT, L2, FROM BELOW AND NORTH

PA-217-22 DETAIL, LOWER JOINT, L1, FROM ABOVE AND NORTH

PA-217-23 DETAIL, RIVER PIER AND FLOOR SYSTEM, FROM NORTH

PA-217-24 DETAIL, STRUCTURE BELOW DECK, FROM BELOW AND NORTH

PA-217-25 DETAIL, NORTHWEST ABUTMENT, WINGWALL, AND BEARING, FROM SOUTHWEST

PA-217-26 DETAIL, LAND PIER SHOWING BEARINGS OF PONY TRUSS SPANS, FROM WEST

PA-217-27 DETAIL, POSTS AND BALUSTRADE, FROM NORTHWEST

Page created:
Last modified: 27-Feb-2002

HAER Text: P.A.C. Spero & Company, Historic Structures Consultants; Baltimore, Maryland; for Allegheny County and PennDOT, 1989
visit site - "American Memory" at Library of Congress
visit site - National Park Service -- Historic American Engineering Record