Image #477 (2.75" x 4.5"): "6-21-29. U22 L22 = CL [center line] of span. Closing bottom chord, north truss, in place."; Image #478 (2.75" x 4.5"): "6-21-29. Progress."; Image #479 (2.75" x 4.5"): "6-22-29. Driving pin in L21 - East (See 476). This pin was later removed so that no shear could be transferred between the two cantilevers."; Image #480 (2.75" x 4.5"): "6-22-29. Both closing bottom chords in place, and pins driven, but not yet connected to hangers. See 482.";Four 4.5" x 2.75" B/W photos numbered 477, 478, 479, 480
Image #481 (4.5" x 2.75"): "6-22-29. Stairs from L16 to U17, east side only."; Image #482 (2.75" x 4.5"): "6-22-29. Closing chord L19 L21 east with pin driven at L21. Note how chord is arched and still not connected to hanger at L20. (Gap = 6")."; Image #483 (2.75" x 4.5"): "6-24-29. Same as above, after jacking near side down 6 1/8" and far side up 11 13/16", making total vertical movement at pin of 17 15/16". Note hanger being connected - chord is now straight.";Three 4.5" x 2.75" B/W photos numbered 481, 482, 483
