Weather: Dumping of heavy rain wipes out roads, landslides along East Coast of North Island

Landslides and wiped-out roads are becoming all too familiar for East Coast residents and as the week begins, so too does the clean-up. 

Tairāwhiti Gisborne is again facing the mammoth task of cleaning up the destruction left by a dumping of heavy rain at the weekend. 

Cyclone Gabrielle wreaked havoc on vital infrastructure in Tairāwhiti and just as work was underway to fix broken roading, Mayor Rehette Stoltz says that work has now been "undone".

"State Highway Two is very fragile, it is closed. There was massive movement there. The State Highway 35 is fragile," she told AM. 

A line of red wraps around parts of the East Coast of the North Island on Waka Kotahi's roading map after delicate roading networks succumbed to heavy rain. 

Waka Kotahi is advising motorists travelling along State Highway 35 Okitu to Ruatoria of uneven road surfaces, various speed restrictions and traffic management. 

State Highway Two from Matawai to Whatatutu Rd is closed following flooding, and Waka Kotahi said it will remain closed "until further notice".

State Highway Two from Napier to Wairoa has now reopened after its closure, but Waka Kotahi urged motorists to "take care as contractors are working along this route".

Stoltz told AM new landslides that were not seen during Cyclone Gabrielle have come down over the weekend, and she fears it's just the tip of the iceberg. 

"[Teams] have not had time to get out into the region yet to inspect houses up the coast or to the west, for the ones that they are currently talking about are mostly in the city. So we do expect in the next couple of weeks to get more calls from residents who might notice big cracks in their house or the retaining wall has moved or their driveway has moved."

Tairāwhiti Civil Defence said the weather is "tracking as expected" with showers to continue over the next 24 hours, it says most areas are likely to get up to 33mm of rain, with isolated areas receiving up to 60mm.

"Weather will move from easterly to south, south westerly which means drier and colder [weather] for the next five days."

Large amounts of rockfall have forced the closure of State Highway 25 between Tapu and Waiomu on Monday morning, blocking lanes both lanes. 

"The rock fall is at Ruamahunga, at the same location that slipped over the weekend," Waka Kotahi said. 

Weather: Dumping of heavy rain wipes out roads, landslides along East Coast of North Island

Newshub understands rock was still falling at 6:30am on Monday, Higgin's manager Ben Buttimore said "There are crews on several slip sites" that are sodden.

"High cliffs have come down."

Motorists attempting to get off the coast were being turned around and sent back to Whitianga. 

State Highway 25A from Kopiu to Hikuai is closed following a "full-road collapse at a large washout location.

Waka Kotahi says State Highway 25A will remain closed "until further notice" and urged motorists to plan ahead and use alternative routes. 

State Highway 50 between Tikokino and Ongaonga is closed too, forced by flooding.

"A detour is in place. Please follow the detour and allow extra time for your travel," said Waka Kotahi's website.