00937

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

Construction of a 60m diameter four-leg roundabout
CLIENT: NZTA 

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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