This notice is an update for an earlier notice .
Where we are working
What we are doing
Fletcher Construction will be the delivery team (as part of the Stronger Christchurch Infrastructure Rebuild Team) that will undertake the construction work to replace one retaining wall and repair two retaining walls along a section of Dyers Pass Road (between property numbers 1091 and 1063).
The repair and replacement work along Dyers Pass Road is scheduled to commence in the week beginning Monday 2 March 2015. Due to the nature and extent of the work the overall project is expected to take six months to complete.
Our usual hours of work are 7.00 am to 6.00 pm, Monday to Friday, with weekend work if required.
All of our work is subject to favourable weather and on-site conditions with this in mind we ask that you please be aware that timeframes may change.
The Dyers Pass Road Retaining Walls
Stages of work
This stage will involve the setting out of the traffic management, including the installation of temporary traffic lights. Fencing will be erected around the site to enclose the work area. Temporary speed bumps will be installed in the live lane to ensure traffic travels at a safe speed and that it is a safe environment for the crews to complete the work. During this stage the services and utilities will be protected by locating and relocating them temporarily.
These works are scheduled to commence late February 2015 / early March 2015.
Scheduled to commence early March 2015
Repair of walls one and three
To stabilise the gabion baskets the installation of rock anchors, of various lengths, will be installed through the existing gabion baskets and into the bedrock behind. We will be installing a total of 106 rock anchors.
This work involves using an excavator mounted drill rig operating from the road above to insert a steel casing through the basket. The drill is then inserted through the casing to drill a 100mm diameter hole through the material behind the basket.
Once the holes have been drilled we will begin to complete work to install the anchors. This involves inserting the steel bar (anchor) into the drilled hole and grouting in place.
After this is completed, work will be underway to repair the gabion baskets. Final work will involve installing steel waler beams along the face of the gabion baskets.
The work will commence at the northern point of wall one and progress south along wall one, moving onto wall three when wall one is complete (see Map 1 for location of walls).
Commencing the same time as stage two
Replacement of wall two
Construction to replace the existing timber post and panel retaining wall (see Map 1) will involve removing the existing guardrail barrier, the pedestrian handrail and footpath. The existing timber wall will be deconstructed and dug out. Preparation work will be underway to level out and compact the ground, and a new drainage system will be installed. Work will then be underway to construct the new gabion retaining wall, this will involve laying out the gabion baskets, folding them into shape, tying the connections and filling the baskets with gabion rock.
Once the baskets have been filled and installed, the crew will then backfill behind the retaining wall in layers. The concrete for the new footpath will be poured and connected to the top of the new retaining wall. The final phase of this work will include installing a new handrail to the side of the footpath and the area immediately beneath the retaining walls will be landscaped.
Scheduled to commence late July / early August 2015
Following completion of the retaining walls, the road surface will be repaired on the even-numbered (southbound) side of Dyers Pass Road.
Following the road surface reinstatement on the even-numbered (southbound) side of Dyers Pass Road, repairs to the concrete storm water channel will be underway on the odd-numbered (northbound) side of Dyers Pass Road. The temporary traffic lights will be uplifted at this time.
Traffic impacts stage one, two and three
Temporary traffic lights will be set up along Dyers Pass Road from the intersection with Governors Bay Road running 400 metres north. Temporary speed restrictions and speed bumps will be installed to slow traffic along this section of Dyers Pass Road.
Residents living within the work area will have temporary traffic lights installed at the bottom of their drives for exiting onto Dyers Pass Road.
Turning restrictions will also be in place while the retaining wall repair work is underway. Residents within the work area will not be able to turn right. We ask that you please adhere to our traffic signals and take care when exiting your driveways.
Traffic impacts stage four
A progressive shoulder closure will be in place around the work area.
Cyclists will be required to merge with traffic flow and adhere to all traffic management in place. Please follow our signs and reduce your speed.
There will be no on-street parking available along this section of Dyers Pass Road while work is underway.
Rubbish and Recycling
For residents within our work area, we would like to ask that you take your City Council rubbish and recycling bins out to the bottom of your driveway before 5:00 pm on Tuesday and we will move the bins out of the work area for collection on Wednesday morning and return them to your property after they have been emptied.
Please ensure your bins have your house number on them so we know which properties to return them to.
Work may result in increased dust, if there is dry weather conditions. The work may result in low volume noise and vibrations due to the heavy machinery used. We will try to keep any disruption to a minimum and we apologise in advance for any inconvenience.
Work may have an impact on water, telecommunication and power services. Where services are to be shut off a separate notice will be delivered to affected residents prior to any planned shut off.
Due to the nature of the work and for safety reasons, the footpath above the work area will be closed. Pedestrians will be escorted and access will be maintained via a temporary footpath.
Safety is our number one priority. Safety is your responsibility too. Please make sure you stay clear of work zones, stay alert and keep children and pets at a safe distance.
If you have any questions, or for any other information about this work, please contact Fletcher Infrastructure on 0800 444 919 from 8:30am–5:00pm Monday to Friday and we will be happy to help you. You can also contact us by email: CIRinfo@fcc.co.nz
Fletcher Infrastructure on behalf of SCIRT (Stronger Christchurch Infrastructure Rebuild Team) would like to take this opportunity to thank the Clifton community, especially directly affected residents, for their patience, support and cooperation while we complete these works.