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This Contract comprises of two Separable Portions to remediate under-slips caused by successive significant rainfall events at two locations along the Galatos Road within the Rotorua District.
1. Separable Portion A - Site 1 between RP 0287 - 0297
2. Separable Portion B - Site 2 between RP 0751 - 0792
Current Site Conditions
Both sites are generally underlain by low strength silt and clay with interbedded layers of loose to medium dense sand belonging to the Ohakuri Formation. At the base of auger holes medium dense to very dense sand was encountered. CPT tests further indicate that the site is generally underlain by alternating layers of sand and silt increasing in strength and density with depth. A CPT met early refusal at 5.7 metres below ground level on what is inferred to be localised boulders prominent in the area.
Separable Portion A - Site 1 between RP 0287 - 0297:
The site has a shoulder closure and asphalt bund in place where the surface had begun to crack behind the asphalt bund and have continues into the grassed shoulder. The underslip face is approximately 14m long with radiating cracks in the shoulder leading away from the face, both down into the embankment and up to the road surface.
Separable Portion B - Site 2 between RP 0751 - 0792:
The slip is approximately 41m long with cracking radiating off the slip face into the carriageway. The slip face extends into the carriageway where the left wheel track has slipped away. An access had been cut to create a work area into the slip face to stabilise the existing culvert and an additional length flume but this was buried in a subsequent storm event.
|Closed||7 Feb 2023 4:00 PM NZDT|
|Notice Type||Request for Tenders (RFT)|
|Regions||Bay of Plenty|
|Contact Details||Keiran Vandergoot
|Published||18 Jan 2023 2:00 PM NZDT|
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