Sydney Harbour Bridge
Original Published Date: 
Tuesday, March 19, 2019

Researchers at The Australian National University have received almost $900,000 from the ARC through the Linkage Projects scheme to develop innovative laser cleaning processes to conserve the structural integrity and iconic status of the Sydney Harbour Bridge.

Led by Professor Andrei Rode, and with additional support from NSW Roads and Maritime Services and the Australian Nuclear Science and Technology Organisation, the research team will develop lasers to remove lead-based paint and clean the bridge’s metal structures and granite pylons.

The expected outcomes will be new best-practice laser conservation techniques usable for both hand-held and automated systems to preserve one of the most iconic bridges in the world. This will reduce maintenance frequency and cost, restore the beauty of the bridge, retain its engineering significance and provide a baseline process for cleaning of other historical large scale metal and stone heritage objects.

Photo credit: 

Image credit: Michael Malherbe (CC BY 2.0).