Sunday night was removal night for Pyrmont Bridge’s gates. In the restoration described by contractor ProGroup Management, a set went off to the factory while temporary gates took its place. The work was arranged around boats using Darling Harbour and the need to have the gates functioning over the weekend. [1]

The Sydney bridge, opened in 1902, has a steel swing span between timber approach spans. Boats pass through when the middle swings aside; pedestrians and cyclists use the crossing above. Its movement was originally powered with equipment adapted from Sydney’s electric trams, supplied from the nearby Ultimo Power House. [2]

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Pyrmont Bridge, Darling Harbour. This map locates the town or region, not a verified exact historic event site.

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ProGroup’s job concerned four main gates and their accompanying pedestrian gates. It replaced their timber with pine, which the company describes as strong, durable and lightweight. The wrought-iron hinges, hardware and bracing followed a different route: they were refurbished and reused. [1]

The original approach spans had used local ironbark. The bridge manager’s history explains that iron and steel were expensive, and the government insisted on the local timber to reduce costs. The pine in the gate contractor’s account served a different part of the structure from that approach-span timber. [1][2]

Timber trusses and piers carry a long bridge across the harbour behind floating pontoons.
“Pyrmont Bridge viewed from Cockle Bay Wharf at Darling Harbour.jpg” — Bidgee, 13 July 2013. The bridge’s approach spans and piers, with the monorail beam above. CC BY-SA 3.0 Australia, via Wikimedia Commons.Photo: Bidgee · Source · CC BY-SA 3.0 AU · Colour-managed from Adobe RGB (1998) to sRGB, resized and JPEG-recompressed; full frame retained.

Below the deck, maintenance had its own timetable. In a separate timber-pier restoration project, construction manager Currie & Brown describes replacing defective timbers while keeping the bridge open. It coordinated work with tides, vessel movements and events including the International Boat Show. Decisions about which elements to retain or replace were recorded with heritage specialists, with drawings kept to guide later work. [3]

For the gates in ProGroup’s factory, the return journey came on Thursday night. Once the repaired set was back, all gates could function over the weekend. On Sunday night the team returned to begin the next cycle. [1]