Spring works at Nevis Bluff and Kawarau Gorge
Motorists can expect delays as the abseilers work to make two schist rock bluffs safe above State Highway 6 at Gibbston.
Waka Kotahi's spring safety programme gets underway at the end of this month at at both the Kawarau Gorge Bungy Bridge bluff and Nevis Bluff.
Both schist rocks bluffs are prone to rockfall and are routinely monitored by Waka Kotahi crews and geotechnical advisors. While the Nevis Bluff spring and autumn work has been regular in recent years, the Kawarau Gorge Bungy Bridge road site also now requires additional maintenance.
Works will run for around four weeks from Monday, 30 October through to 24 November. That's a week at the Kawarau Gorge (Bungy) Bridge bluff to start with then three weeks at Nevis Bluff.
"People who travel between Cromwell and Queenstown will need to factor in short delays, up to 10 minutes at a time on weekdays, 8am to 5pm,” Waka Kotahi System Manager Robert Choveaux says.
The scaling works at Kawarau Gorge Bungy Bridge is the first stage in a larger programme which will go through into 2024.
"It includes the installation of 42 rock-bolts and structural mesh to retain the overhanging and fractured upper central section of the Kawarau River Bridge rocky outcrop,” Choveaux says.
That is tentatively programmed for February, 2024.
"The Nevis Bluff and Bungy Bridge are sites we regularly inspect, monitor and complete stabilisation work on as part of our commitment to provide a safe, accessible highway network and reduce the risk of uncontrolled rockfall," Choveaux says.
"The best time to do this work is during the shoulder seasons in autumn and spring when traffic volumes are at their lowest.
"People stopped in their cars may be able to see abseilers inspecting and removing loose rock on these rock faces. We need to ensure the road below is clear when rocks are being dropped or loosened.
"We appreciate everyone’s understanding for any delays that they may encounter and thank them for following the temporary, lowered speeds which are for their safety and the safety of our workers."
The Kawarau Gorge Bungy Bridge bluff
