PROJECTS

Hewletts Flyover

Owner: Transit New Zealand
Contractor: Fulton Hogan/Smithbridge Joint Venture
Consultant: Peters & Cheung

Peters & Cheung carried out the detailed design of the Hewletts Flyover in Tauranga for Smithbridge. The 410m long Hewletts Flyover is one of the biggest bridges currently being built in NZ. The purpose of the bridge is to relieve congestion from the Te Puke Road leading onto the Tauranga Harbour Bridge.

Fulton Hogan is responsible for the overall project with the bridge being the key element of the scheme. Transit New Zealand invited contractors to bid on design and construct basis. Peters & Cheung assisted in winning the tender with their innovative and cost effective design.

The project is a collaborative effort with Peters & Cheung driving the overall bridge concept, the detailed design of the bridge superstructure and a large post-tensioned portal pier. Tonklin & Taylor are responsible for the foundation design and Holmes Consulting Group for the overall seismic design of the bridge and the design of the substructures.

The bridge is founded on pad footings on sand which has been densified by the use of stone columns. The bridge is generally supported on single column piers capped by hammerheads however there are two portal type piers. The larger of these comprises a pair of columns with a post-tensioned beam spanning between them. The beam will be stressed in stages as the precast deck beams are placed on it. The deck comprises partially prestressed super-tee beams with a cast-in-situ deck slab.  The aesthetics of the bridge have been enhanced by fluting in the piers and flowing patterns in the bridge barriers.

Construction of the bridge is well underway and work will be completed at the end of May 2006.