Bridges--South Carolina; Bridges -- Design and Construction; John P. Grace Memorial Bridge (Charleston, S.C.); Timber; Railroads; Ships
Description
Image #453 (2.75" x 4.5"): "6-20-29. Jacking stick for spreading trusses to connect bracing, etc."; Image #454 (2.75" x 4.5"): "6-19-29. West arm (left) to L21. East arm (right) to L17 U18. (CL [center line] of span is at 22)."; Image #455 (2.75" x 4.5"): "6-19-29. Dummy jacking chord U17 U18 containing 500 ton jack for cantilevering suspended span."; Image #456 (2.75" x 4.5"): "6-19-29. Driving 10" [diameter] jacking pin in dummy jacking chord U17 U18."
Digital image copyright 2009, Charleston County Public Library. All rights reserved. For more information contact the Charleston Archive, Charleston County Public Library, 68 Calhoun Street, Charleston, SC 29401
