The Sydney Harbour Bridge
The interesting years are the ones when it did not reach. Until August 1930 the bridge was two steel arms built out from opposite shores toward a gap, and that is what these photographs are of — the arms still apart, cranes working at their upper ends, a liner steaming through the opening between them.
The gap closed on 19 August 1930. Dorman Long's two creeper cranes had crawled outward along the top chord since 1929, laying their own track as they went and lifting each steel piece into place; Lawrence Ennis, the director of construction, brought the halves together at a quarter past four that afternoon, watched the steel contract again as the evening cooled, and made the final closure at ten at night. The bridge did not open until 19 March 1932, so everything you see here with a gap in it is more than a year from being a road.
Sam Hood went back to the arch as the halves crept together, and from the North Shore about 1931 he stood close enough to get cottages, trees and a grassy slope into the foreground — the suburb living underneath the largest thing in the country while it was assembled overhead.
The approach spans are the part nobody remembers. They rise on stone-faced piers above a rock cutting on timber staging, with a fenced roadway running past the works as though it were ordinary municipal business, which for the people on it is what it was.
By the 1950s the arch is scenery: a foreshore park, a paling fence, a grassed slope down to the water, and the thing itself across the harbour behind wharves and moored boats. Look for the crown while it is still a narrow slot of daylight.