Motorists travelling between Cromwell and Queenstown today (Tuesday, November 4) are being warned to expect an hour-long delay as blasting takes place at Nevis Bluff. 

Waka Kotahi NZ Transport Agency (NZTA) says explosives will be used as part of ongoing safety work to remove unstable rock approximately 100 metres above State Highway 6. 

“[The blasting] is vital to ensure the ongoing safety of road users,” a NZTA spokesperson said. 

The work is part of a four-week spring and summer programme that includes rock scaling and checks on monitoring equipment at the site. 

Subject to weather conditions, the road will be closed between 1pm and 2pm.  

Crews continue work to stabilise an underslip at Scrubby Corner in the Kawarau Gorge. Image: NZTA

Outside of blasting times, drivers should still plan for short delays of around 10 minutes when travelling past the bluff between 8am and 5pm on weekdays. 

Further blasting is expected over the coming weeks, with dates and times to be confirmed as the programme progresses. 

“[There will be] electronic signs advertising these longer delays a day or two ahead, and we’ll give as much notice as possible,” the spokesperson said. 

Motorists should also be aware of other roadworks in the Kawarau Gorge, including repairs at Scrubby Corner - expected to take another week - and slip clearing following wet weather. 

“We thank people for their patience and care when driving in the area,” the spokesperson said.