After Hours Emergency 24 Hours: 03 684 3817

A collection of our works.

Pipe Lining

Hadlee & Brunton have the exclusive New Zealand (NZ) rights to supply, distribute and install the full range of revolutionary German pipe rehabilitation products manufactured by Amex Sanivar. In particular is the range of Amex pressure liners capable of operating pressures exceeding 50 bar. These 3.5mm thick liners can line any type of pipe from 100 year old steel through to asbestos in lengths of up to 2km. Most importantly there is no resin, curing or grouting involved, just a flanged coupler at each end and inflate to 1 bar pressure to install. These liners can be used for potable water (AS/NZS approved), sewer, industrial waste water along with oil and gas. They will revolutionize the NZ construction industry with major cost and time savings and give aging infrastructure a further 50 to 100 years lifespan.

Key Projects

  • PIPE LINING – MT ALBERT, WELLINGTON

    The main gravity sewer supply line to the Moa Point Wastewater Treatment Plant in Wellington travels via a 1.8km concrete lined interceptor tunnel that stretches from Island Bay to Kilbirnie. Cast in the concrete base of the tunnel are two 1.8km, PN35, DN150, concrete lined ductile iron pipes. These pipes allow the untreatable sludge from Moa Point to be pumped back to the landfill in Happy Valley. Due to a seismic event towards the end of 2019, it was discovered that the concrete tunnel benching had lifted and broken approx. 250m down the tunnel. Both pressure pipelines had also broken and were pumping sludge into the interceptor tunnel. Neither of the sludge pipelines could be used forcing Wellington Water to run a fleet of vacuum trucks 24 hours a day, 7 days a week to transport the sludge at a cost to ratepayers of over $600,000.00 per week.

  • WILLOW PLACE LINER – QUEENSTOWN

    Queenstown Lakes District Council (QLDC) needed to upsize the pumping station which serviced Kelvin Heights. Unfortunately, the existing 400mm PN6 & PN8 PE pipework could not handle the increased pump pressure so needed to be upgraded. The 700m pipeline ran in a small corridor approx. 5m off the shore line of Lake Wakatipu and along the frontage of the Hilton Hotel. The retaining wall holding up the walk way on the lake edge was also collapsing which meant heavy vehicles and plant could not access the pipeline. H&B’s solution was to line the existing PE pipeline with Amex pressure liner to increase the rating to PN16.

Horizontal Directional Drilling

We’re revolutionising directional drilling and boring! Hadlee & Brunton have one of the most advanced pieces of equipment for horizontal directional drilling in the world today, a custom-built 200T Maxirig from Herrenknecht. It is the only European Maxi-rig in New Zealand and can drill over 1 km in length and up to 2 m in diameter. This directional boring beauty is used for large bore and or long distance pipe installations in the utilities sector throughout the country. The technology of this rig far exceeds anything else currently available in New Zealand.

Key Projects

  • WESTPORT RAW WATER SUPPLY PROJECT

    This project involved transferring raw drinking water from the existing intake at the South branch of Giles Creek to Pond 3 of the Westport Reservoir network. The existing 2.5 km of reticulation consists of 4 hand dug tunnels linked by timber flumes and bridges, open channels and existing concrete pipework all in native bush land and protected wetlands. The longest of the tunnels which measures 1.2 km long and up to 200m deep, collapsed in the middle leaving the town without a water supply and relying on temporary pumping from a river below the reservoirs.
  • LYTTELTON WASTEWATER WORK PACKAGE 4

    Design and Build Contract for the HDD installation of a 550m long 355mm SDR11 PE100 pumping main under the Heathcote River and major Dyers / Ferry / Tunnel Road roundabout. This project was the final section of the Lyttelton Wastewater Scheme. Once completed, all of Lyttelton’s and Diamond Harbour’s wastewater will be redirected to the main Christchurch wastewater treatment plant in Bromley.

  • MATAURA VALLEY MILK – GORE

    One of the most challenging HDD installations ever attempted in NZ in regards to geotechnical variance and distance. Installed approx. 10km of pipework and power in 3km of HDD bores. Bore holes ranged in size from 350mm to 600mm diameter and pipe diameters ranged from 225mm to 400mm OD. All shots were drilled in solid rock ranging from silt stone highly contaminated with lignite coal seams through to extremely hard solid rock with quartz boulder seams. 3 parallel shots were undertaken which crossed under the Mataura River, Waikaka River and a main road in continuous 600m lengths. 

  • PAN PAC OUTFALL – NAPIER

    Pan Pac Forest Products Limited is one of New Zealand’s largest timber pulp mills and they pump tens of thousands of litres of consented, treated waste water from their plant out to sea via a 2.5 km outfall pipeline. The pipeline which was 400mm dia steel encased in a 50mm concrete shell, failed in the surf zone approx. 3m deep in running shingles. Repairs from the outside were attempted but resulted in a sheet pile being punched through the existing steel pipeline filling the pipeline with sea water, running shingles and causing large metal rips tags to be bent into the pipeline. To add to the complications the pipeline could only be shut down for 8 to 10 hours per day, any longer than this and the factory would have to shut down at a cost of $1,000,000.00 per day. The discharge into the surf zone in front of residential homes had also created national TV media exposure and the threat of abatement notices from councils.

  • FIRST GAS – FOXTON

    The scope included relocating the main gas feed line to Wellington to enable a new bridge to be installed on State Highway 1. H&B completed the initial HDD design, feasibility and engineering works for the client which involved installing 700m of 250mm diameter steel gas main in one continuous length under the Manawatu River. 

  • M2PP ALLIANCE – KAPITI COAST

    Installed 1.8 kilometres of 300mm and 200mm dia. steel gas main. The twin lines were installed four metres apart, at depths of up to 15m and on mirrored compound curved alignments in very challenging ground conditions. The alignments passed under multiple high-risk elements such as rivers, highways and buildings all during the same shot. Installed a 710mm dia. PE stormwater pipe to a critical grade of 0.3%. Installed 500m of multiple ducting clusters for communication & power services on compound curves and in parallel alignment. All installations were undertaken using the Herrenknecht maxi rig & MPR recycling unit. Engineering and design work assistance by MJS. 

PAST PROJECTS

Interested in more projects we have completed in the past?

Refer to the archive of our past work below.

Let's get the job done!

  • Free Estimate

  • 24/7 Services
  • Flat Rate Fees

Hadlee & Brunton

The company has been in business since 1906.
Hadlee & Brunton prides itself on providing the highest level of
plumbing, drainage, drilling, roofing & maintenance service to the
public, local body and rural sectors, and we guarantee it.

Info

Hadlee & Brunton Ltd
6 North Street, Timaru
(03) 684 3817
plumbers@hadleeandbrunton.co.nz

© Copyright 2019 Hadlee and Brunton Ltd