Projects / Silverstream Bulk Water Supply Pipe Renewal

Silverstream Bulk Water Supply Pipe Renewal

Overview
Current status
Background
All Updates

On behalf of Greater Wellington we are replacing the bulk water supply pipe that runs underneath the northern end of Whitemans Road and the rail line at Silverstream Train Station through to Fergusson Drive.

Start Date
1/08/2022
End Date
1/02/2023
Contact:

If you have any questions about this work, please contact:

Wellington Water, 04 912 4400

Latest Updates

15 December 2022

Since August, Wellington Water has been renewing the bulk water pipe that carries water along Fergusson Drive, under the rail line, up Whitemans Road, and along Kiln Street and Gard Street.

22 November 2022

Contractors GP Friel Ltd has successfully completed laying new sections of pipe under the railway line at Silverstream Railway Station and in Gard Street. Work is now underway at the intersection of Gard Street and Whitemans Road with the crew digging a 2.8-metre-deep trench for the new pipes to be laid. 

1 November 2022

Current Status

Work is now underway at the intersection of Gard Street and Whitemans Road with the crew digging a 2.8-metre-deep trench for the new pipes to be laid. 

Background

We are replacing the bulk water supply pipe that runs underneath the northern end of Whitemans Road and the rail line at Silverstream Train Station through to Fergusson Drive. The pipe is part of a critical water supply network that carries water to the Whitemans Valley area. (Please see map below)

The section of pipe Wellington Water is replacing is old and has already failed once, in 2017, causing significant disruption. Replacing this pipe will minimise the risk of future pipe failures and improve the long-term resilience of the areas bulk water supply.

We are:

  • Digging below the road, railway line and stormwater culverts to install 150 metres of new pipe from the bulk water pipe on Fergusson Drive to the bulk water pipe on Whitemans Road.
  • Installing two new concrete manholes.

We will be installing 120 metres of pipe using open trenching and 30 metres of pipe using a trenchless pipe ramming method.

Silverstream Bulk Water Supply AUG Map ResizedImageWzYwMCw2MTRd

Timeline

August to September 2022

Metlink Silverstream Park and Ride car park

Trenching 74 metres across the Metlink car park on Fergusson drive, under the rail line to the Metlink car park on Gard Street.

September to November 2022

Gard Street - Trenching 16 metres along the pedestrian crossing beside the roundabout to the corner of Silverstream School at the intersection of Gard Street and Whitemans Road.

September to November 2022

Whitemans Road - Trenching 40 metres along Whitemans Road from the Silverstream shops roundabout to the Silverstream Bakery.

November to December 2022

Fergusson Drive - Trenching 14 metres from outside St Patrick’s College tennis courts, across Fergusson Drive to the Metlink car park exit.

November to January 2022

Water connections in Whitemans Road, the Metlink car park and Fergusson Drive.

January 2022 to February 2023

Decommissioning the existing pipe – requiring access from Kiln Street.

 

All Updates

15 December 2022

Since August, Wellington Water has been renewing the bulk water pipe that carries water along Fergusson Drive, under the rail line, up Whitemans Road, and along Kiln Street and Gard Street.

The project is progressing well and we are on track to complete work early in 2023.  With the busy pre-Christmas period we are also working hard to minimise traffic disruption in the area, but suggest you allow a little extra time to get to and from the shopping centre. The Christmas work shutdown period will be 22 Dec - 9 Jan with all traffic lanes open during this time.

Thanks to everyone for your cooperation and patience while we've been doing this essential work.

 

22 November 2022

Work on the Silverstream bulk water supply main replacement is progressing well with construction crews now getting closer to Whitemans Road.

Contractors GP Friel Ltd has successfully completed laying new sections of pipe under the railway line at Silverstream Railway Station and in Gard Street. Work is now underway at the intersection of Gard Street and Whitemans Road with the crew digging a 2.8-metre-deep trench for the new pipes to be laid. 

Soon we will be working within the Whitemans Road area which will cause some traffic disruption and loss of parking but traffic management will be in place to keep vehicles moving. Thanks for your patience while we undertake this essential work.

1 November 2022

We are currently installing 120 metres of new pipe and tow new manholes using open trenching. This work is progressively taking place in  

Gard Street, Whitemans Road and Fergusson Drive. 

23 August 2022

The first stage of the Silverstream bulk water supply main replacement is underway. Top work to the crews who safely and successfully installed the first pipe casing without disruption to railway services and kept the construction site footprint to a minimum by rearranging the carpark entry and exit points.

15 July 2022

While we’ll try our best not to cause disruption, this work will require us to put traffic management in place at certain times, and there will be some construction noise.

Bus stops on Gard Street, Fergusson Drive, and Whitemans Road will be temporarily relocated to ensure public safety during key construction dates. Relocated bus stops will be clearly sign-posted.

Approximately 30 car parks will be unavailable from the Metlink carpark off Fergusson Drive from 1 August to mid September, and 8 car parks on Gard Street will be unavailable from 1 August to mid-September.

Water supply and train services will not be affected as part of this work.

We thank you for your patience while we work to improve the water infrastructure in your area.