Annual wastewater pipe inspections getting underway

25/10/2018 5:00 p.m.

More than two kilometres of wastewater pipes in Ashburton and Methven will be going under the microscope during the next three weeks, with annual inspections starting on Monday 29 October.

The inspections carried out by the Council’s contractor, InterGroup Ltd will check the condition of the infrastructure and identify any maintenance issues that need to be addressed. This information will be used to help develop the Council’s wastewater pipe replacement programmes.

To complete the work, the contractor will first water jet the pipes to clean them out, and then inspect them with a CCTV camera that travels down the pipeline.

This year, 2.2 kilometres of pipes along Trellench Place/Digby Place, Pages, Walshs, Creek, Woods, Racecourse and Belt Roads in Ashburton will be inspected, as well as 287 metres in Methven along Racecourse Avenue and Main Street.

Council Assets Manager Andrew Guthrie says this year’s inspections will also help with sewer pipeline relining work.

“Later this year and into the start of 2019, we’ll be relining some of our wastewater pipes. Before we can do this, we need to be sure of the condition of the pipes, and where all of the drains from houses and business are that connect to the system.

“Similar to how we inspect the pipes to assess their condition, this particular work will also involve finding all of the drains that are being used and putting a small amount of dye in the gully traps to see where it comes into the sewermain using the CCTV camera.”

This additional work will be happening on a 620 metre stretch of Nelson Street in Ashburton between the Eton and Trevors Road intersections. Just over 110 metres on Main Street in Methven will be part of this project as well.

Letters have been sent to residents in the areas where the wastewater pipe inspections will be happening to notify them of the work.

The project is expected to wrap up in late November. ​​​

Page reviewed: 26 Oct 2018 11:58am