SH1-5 Tirau Intersection Improvements $3.3m (complete)

Construction of a 60m diameter four-leg roundabout for NZTA.

Project Details

Client

NZTA

Value

$3.3M

Status

Complete

This intersection is a strategic link between Rotorua, Hamilton, Tauranga and Taupo and a popular tourist route with a high portion of heavy traffic. 

The construction of the new four-leg roundabout included the realigning of three state highway approaches at SH1/SH5 south of Tirau:

  • SH1 North approach, 340m towards Tirau¬†
  • SH1 South approach, 300m towards Taupo
  • SH5 approach, 520m towards Rotorua

The physical works included:

  • Protection of the “Queen’s Tree’s” (two large historic oak trees)
  • Co-ordination and liaison for shifting/installing power and telecom services
  • Set out of works, site security, information signage, construction survey/setout and calculation of quantities
  • Site clearing including the removal and disposal of fences, vegetation, redundant services and obstacles
  • Demolition and removal of disused bowling club house and facilities
  • Bulk cut to fill and cut to waste
  • Construction of Hi-Lab pavement
  • Stone mastic asphalt with polymer modified binder surfacing for the roundabout and two-coat chip seal on the approaches and widening
  • Drainage and stormwater, including swale drains, subsoil drains, kerb and channel, cesspits and concrete culverts
  • Guard railing
  • Pavement marking, signage and delineation
  • Landscaping and vegetation
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