The NZ Transport Agency says work to re-open the Manawatu Gorge following slips which closed the road, is progressing well.
Transport Agency highway manager Ross I'Anson said sluicing operations, where helicopters dropped water from monsoon buckets to clear a rock outcrop above the large slip area were now complete and that material was now being removed from the road.
This work will continue for the next few days.
Design work for safety fencing structures to be installed across sections of the slip face has already commenced.
"This work has been possible at this earlier stage, by the use of aerial drones that are mapping the area and providing a detailed model of the slip face," Mr I'Anson said.