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Frequently Asked Questions - processes

Which areas will be rebuilt?
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The infrastructure rebuild will restore horizontal infrastructure throughout Christchurch.

If my retaining wall is a publicly owned wall, when will it be fixed?
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SCIRT has prioritised the repair of retaining walls that have impacts on roads, underground services, such as wastewater and water supply, or have a risk of failure that could cause public safety or access issues. Nearby residents and property owners will be advised well in advance of any work to rebuild a wall. You can also keep an eye on the SCIRT website for SCIRT’s schedule of works, which will set out the broad timeframes for the rebuilding of infrastructure throughout the city.

How long does it take to rebuild a retaining wall?
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Each wall is unique and construction times will vary depending on a number of factors such as access to the site, ground conditions, the height of the wall and services behind the wall e.g. water, wastewater, utilities. Some complex walls may take up to one year to rebuild, while others will be finished in a few months.

The publicly owned retaining wall on or near my property is in poor repair. Can you prioritise its repair?
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It is important that SCIRT consistently follows the prioritisation process put in place for the rebuild as this is in the best interests of the people of Christchurch. If a wall is deteriorating and poses a safety risk, please contact Christchurch City Council who will organise for temporary stabilisation until the permanent repair can occur.

I can’t move back into my house until the publicly owned retaining wall is fixed, so will my wall be prioritised?
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Higher priority will be given to those walls that pose risk to public safety, access, protection of services and properties.

If my retaining wall is some way off being rebuilt, will you do any temporary or maintenance works?
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If the wall is deteriorating and poses a safety risk, please contact Christchurch City Council who will organise for temporary stabilisation under its maintenance contracts until the permanent repair can occur.

Why do you do investigations for a retaining wall before you rebuild it?
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To undertake the design of the wall SCIRT first needs to determine the ground conditions around and beneath the proposed wall through geotechnical investigations. These investigations along with information on the location and condition of adjacent services are used to determine the extent of the design and possible rebuild solutions.

I can't get my house repaired until the retaining wall is fixed and my neighbours won't sign their easement agreement; can't you just fix the wall anyway?
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The construction methodology for repairing the retaining wall requires us to build the retaining wall from the bottom up along the entire length of the wall, so all easements must be in place.

Will you start construction immediately after all ground anchor easement agreements are signed?
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This will be influenced by the length of time it takes to secure all the necessary agreements. We have allowed approximately 2 months for this to occur. If it takes substantially longer to gain the necessary easements, construction may be delayed due to work crews and resources being diverted to other high priority projects.

How long will each retaining wall take to construct?
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Each wall is unique and construction times will vary depending on a number of factors such as access to the site, ground conditions, the height of the wall, services behind the wall e.g. water, wastewater, utilities. Some walls may take close to one year to rebuild, while others will be finished in a few months.

What if EQC want to repair my house during the rebuild of my retaining wall?
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If you know when the rebuild of your property is scheduled for, please let us know when we move into your area to rebuild a retaining wall. We will try to accommodate your construction works as much as we can.

What is the process for fixing a piece of broken infrastructure?
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Fixing a broken piece of infrastructure (an asset) is an important task that involves a number of key steps. First the asset is identified, surveyed, and the damage assessed. Then, the rebuild works are prioritised with priority given to fixing the worst damaged areas that affect the highest number of people. The rebuild work then enters the design phase, and consultation with the community is undertaken if needed. The rebuild works are then packaged together, and the delivery teams go out and do the physical construction work on site. Once the works are completed the infrastructure is handed over to the asset owner (e.g. Christchurch City Council or NZTA).