Harapaki Wind Farm
The 176MW, 41 turbine Wind Farm is located35km northwest of Napier in the Maungaharuru Range in Hawkes Bay. The Wind Farm will generate enough electricity to power more than 70,000 homes.
DATE
2023
PRINCIPAL
Meridian
CLIENT
HSJV
SCOPE
Hiway were engaged to the project for in-situ recycling the steep access road slopes that lead to the platforms for the wind turbines, these were to remain unsealed and would be used to carry large loads when transportation of the turbines to each foundation was constructed.
KEY CHALLENGES
Challenging terrain with steep slopes exceeding 18%
Very narrow shoulders required a methodology to work up and down steep slopes
Changeable weather conditions and exposure
The remote location increased the challenges for supply chain logistics
DOLLARS SAVED
15%
KG CO2 SAVED
20%
TIME SAVED
20%
SOLUTIONS
The technical and design team worked with the client to optimise the pavement design and develop a solution which would provide a robust and cost-effective, all-weather access track that could cater for the required axle loading on extreme slopes. A specialised emulsion binder was developed to meet the challenging technical requirements and a bespoke installation methodology created to deal with the challenging terrain.
OUTCOMES
Over 35,000m2 of pavement delivered up to gradients of 18%
New methodology developed for working both up and down steep slopes
New methodology and bespoke equipment designed and developed by Hiway for emulsion in-situ recycling and extreme grade.
