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Scaffolding has been removed and replaced by fencing as work continues at the Wall Street shopping mall.
The pedestrian track constructed from native timbers will be covered in glass, allowing shoppers to have the sensation of walking on the path, which was built between 1848 and 1859 to bridge an area of boggy ground.
This time, the mud is fake.
The corduroy causeway has been registered as a category 1 historic place and the timbers have been placed in their original location.
The structure was found in 2008, after demolition of the former Deka building in George St, before construction of the Wall Street mall.
Dunedin City Council property services group manager David Bainbridge-Zafar said lighting and beams that would hold the glass floor had been installed and work to lay tiles was under way.
The glass floor is due to be installed by the end of next week.
Reinstatement of the causeway is expected to be completed by July 16.
‘‘As the original causeway was laid to try and combat muddy conditions, this has been replicated in the display to give an authentic feel,’’ Mr Bainbridge-Zafar said.
Wall St mall had remained open during the project and efforts were made to minimise disruption to businesses and shoppers.