Updates

Update 7 May 

We have made good progress laying the two temporary 150mm pipes below the road surface to allow stormwater to bypass the failed section of pipe. 

On Friday 7 May these pipes will be connected to pumps so that we can manage stormwater levels in the CBD and prevent flooding. The pumps will need to be connected to the manhole in the southbound lane on Jervois Quay - closest to Frank Kitts Park.  This means the road will be reduced to two lanes until the works are complete.

We will also begin work on the temporary service access for TSB Arena and the Waterfront.  This will allow those deliveries to continue while the existing service access is blocked off to allow for the replacement of the existing pipe.  Use of this service access will be actively managed by the traffic management team. 

Next week work will start on the replacement section of pipe from Jervois Quay back to the TSB Arena.  This will be a challenging section to complete as there are a number of seawalls and other structures buried in this section.  However, this work needs to be completed before the planned replacement of the section across the road. 

We will continue to provide you with updates. Meanwhile, thank you for your understanding while we complete this work.

We are continuing to work this week on the damaged Jervois Quay Stormwater pipe.

There will be traffic management, outside of peak hours, throughout the week to allow for the installation of two new small stormwater pipes across the road and so we can put a temporary road on Frank Kitts Park to maintain service access to the waterfront.

The new temporary road will bypass the existing left turn onto the waterfront and create a new left turn, halfway between Hunter Street and Willeston street. It will connect from Jervois Quay to a widened pedestrian walkway and will meet the existing driveway at the corner of the TSB Bank Arena.

Update 5 May 

Work this week includes:

  • Installing two new temporary 150mm pipes alongside the damaged pipe to carry stormwater from the CBD.
  • Placing a temporary pump station in the CBD to manage water flows and help prevent any flooding in the area in the event of wet weather.
  • Creating a new, temporary road on Frank Kitts Park to maintain access to the waterfront.
  • Installing a new section of 1200mm pipe in the TSB access lane, completed during normal work hours.

 We will keep you updated as the work progresses.

Update 8pm, 18 April

We are pleased to let you know that the temporary work has been completed and all six lanes on Jervois Quay were reopened around 8pm this evening.

Over the next few days a plan will be developed for the long term repair of the pipe and road.  In the meantime we will be monitoring the condition of the road and pipe to ensure that the risk to the city and commuters is minimised.  We will also be working with the other users of the area as we develop the plan to ensure that our work can accommodate them.

We will continue to provide you with updates. Meanwhile, thank you for your understanding while we complete this work.

 

 Jervois Quay1
Reinstatement South Bound lanes (prior opening all lanes)

Update 18 April

Overnight Ground Penetrating Radar (GPR) has identified two voids, one in the south bound lane and one in the north bound lane on Jervois Quay.  While the size of the voids is yet to be confirmed, as a precaution work will be undertaken to bridge them with steel plates to ensure the safety and integrity of the road.   Work will be undertaken today to finish  the temporary repairs on the south bound lanes, before moving to place the steel plates over the void in the north bound lane.

The work in the north bound lane is to be undertaken this evening to minimise disruption to traffic, however, at least one lane in each direction will be maintained at all times.    

All work is expected to be finished by midnight tonight, so all lanes in both directions will be open for the morning peak tomorrow.

Over the next few days a plan will be developed for the next phases of the programme to ensure that the integrity and capacity of the pipe can be maintained and the safety of the road reinstated.  As part of the plan we will be working to minimise the impact on the CBD but there will need to be further lane closures of Jervois Quay in the future.    

We will continue to provide you with updates. Meanwhile, thank you for your understanding while we complete this work.

Update 17 April

While replacing the temporary section of pipe on Saturday morning, the eathernware has further collapsed.  We were aware of the extremely precarious state of the original pipe, however, it was hoped that the structural patches would be sufficient to sure up the existing pipe and allow a good connection between the existing pipe and the new section. 

Because of the disruptive nature of the works on traffic around Jervois Quay it has been decided to replace the pipe under the closed two lanes and then reinstate the plates, this will ensure that the road will be open in time for the morning rush on Monday.   

Over the next few days a plan will be developed for the next phases of the programme to ensure that the integrity and capacity of the pipe can be maintained.  As part of the plan we will be working to minimise the impact on the CBD but there will need to be further lane closures of Jervois Quay in the future.     

Update 15 April

Lane closures on Jervois Quay will be in place from Friday 16th April to Monday 6am so we can replace the emergency repair section of the stormwater pipe ready for permanent relining and reinstatement of the road.

Work will start after the morning traffic peak on Friday, when one lane of Jervois Quay will be closed.  Then after the evening peak a further lane will be removed. 

This means from 7pm Friday until 6am Monday Jervois Quay will be reduced to one lane southbound. 

Traffic management will be in place over the weekend to manage traffic flows. However we encourage motorists to avoid the area.

Given the fragile state of the pipe there is a risk of a further collapse during the excavation work. We have contingency plans in place should this happen, that would involve the removal of further lanes.

Again, we encourage motorists to avoid the area if possible. Thank you for your understanding as we carry out this important work.

Update 6 April

In preparation for the relining of the pipe we are starting work on the sealing of one of the manholes on the corner of Hunter Street and Jervois Quay.  This aims to reduce the amount of ground water entering the stormwater pipe. 

In order to complete this work the intersection will be blocked off and traffic diverted along Victoria Street from 9.30am – 4pm. 

We will continue to provide you with updates.  Meanwhile, thank you for your understanding while we complete this work.

Update 26 March

Work on the pipe has progressed well over the last week.  The cleaning of the pipe is complete and the crew are now installing the structural spot repair patches.  The weather forecast for next week is not promising so the HydroTech crew will aim to install the rest of the spot repair patches on Sunday night/Monday morning. 

The weekend lane closure is currently planned for the weekend of April 10/11.  This avoids the Easter Holiday break and disrupting traffic over this busy period.  The closure will allow the original temporary repair to be removed and the road reinstatement to be started.  We will be working with the WCC and NZTA Transport teams to make sure the motorway signage encourages drivers to use alternative routes. 

We will continue to provide you with updates. Meanwhile, thank you for your understanding while we complete this work.

Update 23 March

The first night of cleaning went well with 17 meters of pipe cleaned. The number of barnacles and damaged sections of the pipe does increase as the it gets closer to the sea. Tonight, work will continue on the cleaning; as well the first of ten patches will be inserted to repair the most damaged sections of the pipe.

Due to the need to open one of the manholes in Jervois Quay to pump water out, one lane of the road will be closed from 7pm until 6am tomorrow.  This will continue throughout the project.

Below are some photos taken from the CCTV footage of the pipe showing its condition and the amount of seawater coming in through the cracks and joins.    

pipe 1pipe 2

Update 18 March

We currently have a temporary repair installed while we design and organise a more robust solution.

Following our recent CCTV surveys, we are now ready to start work on this solution which involves cleaning debris and barnacles from the pipeline and then relining and repairing the pipe.

Crews will commence on the evening of Sunday 21 March and we expect the project to take up to four weeks to complete.

The majority of the work will be done overnight between the hours of 7pm-6am to minimise traffic disruption, however, there will be one weekend later in the project where day work will also be required. Traffic management will be in place where needed and the site will be removed and packed up during the day.

The relining of the pipe is a medium-term solution while a longer-term capacity improvement is designed and developed which will also address historic capacity issues with the local stormwater network.

We will continue to provide you with updates. Meanwhile, thank you for your understanding while we complete this work.

Update 22 February

This week, crews will be carrying out a further CCTV survey of the pipeline to assess its condition and confirm its suitability to be relined. This work should have minimal disruption, with the a lane temporarily being closed from 7.30pm tomorrow (for no longer than 2 hours).

Update 10 February

Last night the team further increased the safety of the site, allowing for the three lanes to be open with minimal disruption to traffic, until the team works through the next stages.

road surface

 

Update 5 February

The team made great progress today with the collapsed section of the stormwater successfully repaired, backfilled and made safe.

We were delayed in restoring the traffic back to two lanes during peak flow this afternoon to 4:45pm due to safety concerns.  We apologise for the disruption this will have caused.

Road plates are being installed this evening to open up Jervois Quay to three lanes for the weekend. We have planned the removal of some material from site tomorrow morning which will require the closure of a lane for a short period of time.

The road plates will be monitored during the weekend and may require more work.

We will be removing the plates and completing the asphalt reinstatement when it is least disruptive to traffic.

Update 4 February

Sinkhole Investigation - Jervois Quay, Wellington - 6.30AM

Good news! Our crew have installed a temporary fix and backfilled the sinkhole.

This means that we are able to reopen Jervois Quay for this morning's peak traffic. There will still be speed restrictions in place, but all lanes are open.

We still need to work on a permanent fix, but now we can do it at a less busy time of the day.

Update 3 February

Sinkhole Investigation - Jervois Quay, Wellington - 9.30PM

We're making great progress.

We are hopeful, if work continues at the same rate, then we will be able to open all three lanes of Jervois Quay temporarily during peak hour traffic tomorrow morning and schedule work at a better time of the day.

To do this, our crews are going to work overnight, around a high voltage electricity cable, a gas main, and the tide.

We'll update you again around 6am tomorrow morning.

Sinkhole

Sinkhole Investigation - Jervois Quay, Wellington - 6:10PM

Our crews have completed the mark up and are now working to determine what caused the sinkhole and to what extent.

Unfortunately we can't do this work at night. Due to the risk of gas pipes and other critical utilities our crews will need to return in the morning to continue.

We are expecting that the current traffic management set up, reducing flow to one lane along Jervois Quay, will still be in place during tomorrow morning's peak traffic. We apologise for the interruption and ask you to please plan your commute accordingly.

Sinkhole Investigation - Jervois Quay, Wellington

We're investigating a sinkhole on Jervois Quay, Wellington. Traffic management has closed the left and centre lane on Jervois Quay, as well as the turning lane from Hunter Street.

Traffic Management are going to be setting up on site, to allow our team to start work. 

Sinkhole 1

On Wednesday 3 February a sinkhole appeared on Jervois Quay, Wellington.