Wellington.scoop.co.nz »Porirua will spend $ 1.5 million for the delivery of a major slip to Whitby

News from Porirua City Council
Porirua Mayor Mike Tana says the council has agreed to fund slippage repairs for Albatross Close. "It's our responsibility – we have to fix it and repair it," says Mayor Tana

. The proposed solution will cost approximately $ 1.5 million. Of this amount, $ 220,000 will be funded by taxpayers, the rest coming from a NAFTA grant and savings from other landslide work

"This is a slip major caused by a groundwater source that changed course .. difficult to identify the cause of subsidence.This affected the road, residents, a nursery school and a football club. 'The Board has opted for the construction of a palisade wall – the installation of a series of reinforced concrete piles 25 meters deep to form a retaining wall from the retaining wall ", Says Mayor Tana

. Top of the bank.The drainage will be installed in the slip zone and the infrastructure of water, rainwater and sewage damaged will be replaced.We will also plant the bank with deeply rooted trees and eager for water , which will further improve stability.

Councilor for the North End, Anita Baker, is pleased that the Council has discovered the source of the problem and found a solid solution. "It disturbs the residents and I am relieved that we are able to solve the problem. The whole process should last between 4 and 6 months. "

The ENGEO geotechnical engineers at the Council are working on the design of the palisade wall, based on the latest available information on on-site monitoring equipment.

The Albatross Close section, a cul-de-sac of 76 homes near Endeavor Park in Whitby, had a subsidence story, which was first noticed in 2011. There was a major subsidence of the road ahead 4-6 Albatross Closure in October 2016, due to the high level of groundwater from an unknown source

After the earthquakes in November 2016, the same stretch of road sank and a temporary repair was completed at the end of 2017 , which consisted of adding drainage to the ground at a depth of 3 meters, cleaning the road and adding inclinometers to monitor the movement.

In June 2018, a period of heavy rains that led to a subsidence of The road was closed and the temporary road (which was installed after the 2016 earthquake) was reopened to allow residents of Albatross Close and Seagull Place to access their properties. The water line has recently exploded and has been provisionally replaced above ground, with temporary repairs currently underway in the sewage and stormwater lines.