Geotechnical investigations
From 7.00am to 6.00pm between Monday 15 January and Friday 19 January, we will be carrying out geotechnical investigation works in the car park area at Drury Village (232 Great South Road).
The geotechnical investigations are necessary for us to understand the ground conditions to help with developing the designs for the Waihoehoe Road upgrade. We aim to minimise disruption where possible and finish earlier if we can.
Drury Village businesses will be open as usual.
What are the impacts for the community?
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A safety fence will be put up around the work area.
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Several car parking spaces will be unavailable from 7.00pm on Sunday 14 January until work is completed so that there is room for machinery and support vehicles. If you're unable to find a car parking space, there is alternative parking in Tui Street.
Will this work be noisy?
This work does generate noise. You can expect noise above 70dB during the penetration test. People indoors will hear sharp noises once every 15 mins for the first two to three hours but this is not loud enough to damage hearing.
What type of geotechnical work is this?
Two types of work will be carried out to measure the strength and properties of the soil.
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Machine borehole drilling - A drill rig mounted on a tractor or tracks will take a continuous core of soil or rock, and a second truck will be used to carry water and equipment.
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Cone penetration test – A hole will be drilled using a portable rig about the size of a small truck, and a small electronic cone will be driven into the ground.
Work will be carried out within the red rectangle and yellow circle shown in the map below.
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