Bridges--South Carolina; Bridges -- Design and Construction; John P. Grace Memorial Bridge (Charleston, S.C.); Timber; Railroads; Ships
Description
Image #346 (4.5" x 2.75"): " 5-22-29. East anchor arm just before erecting the joints at L10 on Pier 8. (See also 343, 344, 345, & 348)."; Image #347 (4.5" x 2.75"): "Traveler on floorbeam at L8, Span 7, from Pier 8."; Image #349 (4.5" x 2.75"): "5-23-29. Main bearing shoe, Pier 9. Anchor arm trusses not yet pulled back to connect to top shoe. See pulling and jacking devices, 350 and 351. 7'-3 x 8'-6 = 61.6 [square feet]. Max. Des. Load = 3,916,000 [pounds] = 63,540 [pounds/square feet] = 440 [pounds/square inch]. Max. Erec. Load = 2,658,000 [pounds] with suspended span cantilevered to center."
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
