Matuku Waterway flood mitigation works are underway.
The Heathcote Valley experienced flooding in a number of areas during the flood events of 2014. The Land Drainage Recovery Programme is working on a diversion of the Matuku Waterway to reduce flooding in Heathcote Valley downstream of Bridle Path Road. The work is being done in three stages:
A stormwater pipeline has now been constructed, beginning at the Heathcote Valley Drain Inlet, and finishing in Cooks Lane. This pipeline diverts stormwater flows from Heathcote Valley Drain in Morgan's Valley to the lower Matuku Waterway in Cooks Lane, and reduces flooding risk to nearby properties.
A section of Cooks Lane Waterway is being widened to accommodate the diverted flows. These works will involve small scale excavation and replanting in the reserve area between Cooks Lane and Deavoll Place.
The pathway connecting Cooks Lane and Deavoll Place will be closed during construction.
These works were planned to start in June 2017, but were delayed until January 2018 due to wet ground conditions. Construction is expected to be completed before June 2018.
Heathcote Valley Drain will be rock-lined to prevent further erosion from occurring and reduce the risk of water overtopping the drain inlet. This project is currently in the detailed design stages. We will provide further updates prior to construction works starting.
We will continue to work closely with the Heathcote Valley community to keep them updated during the course of the works.