Pacific Hwy Upgrade - Nambucca Heads to Urunga (NH2U)
Roads and Maritime Services
Nambucca Heads, NSW
Scope of Work
Low Noise Diamond Grinding
- Supply of traffic control
- Flush Grinding and Grooving (Low Noise)
- Conventional Diamond Grinding
- Ride and Texture Depth analysis
- Construction of settlement ponds and restoration
Highlights
Implementation of new software that can capture texture depth of the ground pavement. Final surface levels of around 20 NAASRA Providing a surface that has the Noise levels similar SMA 10
Timeline
July 2018 – September 2018
61000
m2 Low Noise Diamond Grinding
27000
m2 Conventional Diamond Grinding
5400
Total Project Man Hours
The results of the low-noise diamond grinding trial on the Nambucca Heads to Urunga project are consistent with the former trial on the Hunter Expressway undertaken in 2014. Not only is the noise result equivalent to the asphalt surface, it is likely to have better acoustic durability. NSW road noise policy has been updated to include NGCS, called LNDG in Australia, and our policy documents are evolving to recognize improved surfacing techniques with more emphasis on the whole of life performance
