Customer Service: +61 3 8470 7300
  • Homepage
  •  New 

    NEW: Nu-Guard® 31 – Reduced distance from Batter Hinge Point

NEW: Nu-Guard® 31 – Reduced distance from Batter Hinge Point

Send to printer
End of Line

Most barrier systems require at least 600mm from the back of the barrier to the batter hinge point (BHP) of a slope to perform as designed and tested. If a barrier had to be closer to this point usually the embedment depth of the post would be extended to compensate for the reduction in soil support on the post.

Nu-Guard® 31 testing of post in relation to BHP
Nu-Guard® 31 post extracted after testing

 As the Nu-Guard® 31 post yields at ground level rather than rotating in the soil (as with traditional guardrail posts), CSP Pacific undertook testing at Opus Research analysing the performance of the post in varying locations away from the BHP to determine if the 600mm could be reduced.

As a result of this testing, CSP Pacific is pleased to announce that the Nu-Guard® 31 steel guardrail system can now be installed as little as 200mm from the BHP, therefore maximising the available road width when installing the barrier.

Please note that to install the Nu-Guard® 31 system up to 200mm from the BHP the soil conditions must be compliant to both of the following NZ Transport Agency specifications:

  • TNZ B/2 - Construction of unbound granular pavement layers
  • TNZ M/4 - Basecourse aggregate

Where the posts are installed in weak soil conditions a minimum of 600mm of soil between the post and the BHP still applies.

For more information about Nu-Guard® 31 Steel Post Guardrail, click here or
Email: or
Phone CSP Pacific on 0800 655 200


NZ Regional Map

Auckland and Northland

Ph: +64 9 634 1239

more info


Retrofit maximises the use of existing lighting poles

5 September 2019: Security is fundamentally important across all walks of life to ensure the safety of people and ...

more >>

CSP Pacific’s MFP™ – the way of the future

5 September 2019: As Auckland City ramps up for the America's Cup in 2021 the heat is on projects such as the ...

more >>
DocLaunch Page Launch Commonon Launch
Auckland Lower Nth Island South Island