Delivering to the specification
We have delivered P39 performance criteria across our infrastructure projects, including Transmission Gully and Puhoi to Warkworth (NX2). Over a maintenance period that means continuous monitoring, documented reporting, and acting early — because on a corridor of that length, a problem found at the final inspection is a problem that has been growing for a year.
Our crews hold the unit standards required to work live highway corridors, and we operate under ISO 9001, 14001 and 45001 certification.
Pest control, including detection dogs
Pest pressure is one of the main reasons revegetation fails during a maintenance period. Alongside conventional control we use trained detection dogs, which find sign that a person walking a corridor will miss — allowing control effort to go where the pressure actually is rather than being spread evenly across a site.
What the period covers
- Monitoring and reporting against the specified performance criteria
- Grass and vegetation establishment through to acceptance
- Replacement planting for losses
- Weed control to specification
- Pest and animal control
- Tree and shrub formative maintenance
- Remedial work on erosion and sediment controls still in place







