The pavement condition along Porangahau and Wimbledon Roads varies and has undergone large numbers of historic pavement treatments (dig out the failed pavement surface and reinstate with better gravels and reseal the surface).
Pavement treatment requirements to increase the pavement strength to carry HPMV loadings on Porangahau Road and Wimbledon Road have not been defined, however some Area Wide Pavement Treatments are proposed in localised areas.
A drive over visual assessment has been carried out in conjunction with a review of previous pavement treatments to determine priority areas where new treatment should be implemented. Three sections were identified as the highest risk to failure in the short term, two of these are currently being competed onsite. The third section (on Wimbledon Road) is not yet programmed but likely to be completed during 2021.
Site: Porangahau Road (200m length (RP7.987 ‐ 8.187) and 409m length (RP8.557‐8.966)
Contractor: Russell Roads
Construction: road pavement treatment and road widening. Completion Jan 2021
The project is complete with only a small portion of drainage works to complete.
A flyover of the area wide pavement treatment project has been created to showcase the work undertaken.
The project is progressing well with the road stripped back and rebuilt in preparation for stabilisation and a top coat.
Project signboards are being printed and will be onsite next week.
The scope of work includes:
Porangahau Rd Site 1 is approximately 200m long between RP 7.99 – 8.19. The treatment for this section involves the renewal of the existing pavement and road shoulder widening with new surfacing.
Porangahau Rd Site 2 is approximately 400m long between RP 8.56 – 8.97. The treatment for this section is the same as Site 1.
Council has awarded a contract to Russell Roads to commence AWPT at two sites on Porangahau Road - works are expected to commence early October 2020.
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