A 70-year-old Taupō man was killed near the lights in February 2018, after he had stopped with others to remove debris from the highway. His wife watched as he was fatally hit by a flying rock and flung into the Mangawhero River.
He was retrieved from the river, but could not be resuscitated. The site was blessed soon after and the death referred to the coroner.
Work to make long-term repairs to that stretch of highway is continuing at six sites. Two are nearly finished, but sealing them will be left until spring.
Dewatering continues at the large Te Ore Ore slip site, which has a 30km/h speed limit.
A hui was held at the Hapokopoko Curve Rock site late last month to mark that physical work will start soon.
Design to repair the slip at Kukuta near Whanganui is nearly completed and consent for that is in place. The site is controlled by traffic lights.
The agency is asking drivers to continue stopping at red lights along the highway to keep themselves, other road users and road workers safe.