Hampton Downs Motorsport Park

Project Progress

Client: GP Farms Ltd
Location: Hampton Downs, Waikato

Ross Reid Contractors were the main contractor for the Hampton Downs Motorsport Park Project. The project was initially tendered as preload works for a value of $4.7 million. The client was very satisfied with our performance on the project that they involved us on a partnership basis for continuation stages of the project. Major milestones for the client were to complete the infrastructure works for the apartments and complete the racetrack. These were achieved within the specified timeframe and the agreed budget.

The project works involved over 160 hectares of land development, this included reclamation of over 35 hectares of swamp land.

Project Scope

  • Earthworks – approximately 750,000m3 of cut to fill (structural), 200,000m3 of cut to waste, 60,000m3 of topsoil, approximately 250,000m2 of high strength geotextile, 22,000m of subsoil drains. Settlement monitoring was carried out right through the project and maximum measured settlement was about 1m.
  • Water supply and waste water treatment plant.
  • Pavement – 110,000m2 of pavement construction with membrane seal and asphalting; of this, 51,000m2 was race track construction.
  • Twin road tunnel and pedestrian tunnel.


Ross Reid Contractors were involved in certain aspects of design and value engineering for the project.

Pavement Design

Ross Reid provided an alternative pavement design solution which enabled the project works to continue through winter. By stabilising the subgrade under the track as well as the car parks and internal roads, it significantly reduced the pavement depth and therefore reduced the subgrade improvement works. This was also a major cost saving for the client.

Tunnel Construction

The tunnel was located between the apartments and it involved significant earthworks and retaining wall construction. By relocating the road underpass tunnel from beside the pedestrian tunnel to the end of the front straight, it saved the client on a large volume of excavation, as well as batter stabilisation and therefore costs. More importantly, it also increased the usable car parking and pit paddock areas.