Folder: S.F. Bridges-Bay-Construction.
Printed on back: "Yesterday (April 4) a reel barge of the Columbia Steel Company chugged eastward from Tower W-2, laying messenger cable in the bay out to Tower W-3. This messenger line was raised to the tops of the two towers, and on Tower W-2 at the west end was attached to a length of 2-1/4 inch catwalk rope, four of which will support each of the two 10-foot wide walk ways over the tops of the towers. A winch at the base of Tower W-3 wound up t6he messenger line, drawing lengths of the heavier catwalk rope across the 2310 feet between Tower W-2 and Tower W-3...".