23/01/2026
🚧 NZTA CONFIRMS NEW STATE HIGHWAY MAINTENANCE CONTRACTS (IDM)
A major milestone for New Zealand’s transport network is now locked in.
Waka Kotahi NZ Transport Agency has awarded 17 long-term Integrated Delivery Model (IDM) maintenance contracts, covering the majority of the state highway network nationwide.
Contract start: May 2026
Contract term: Up to 10 years
Total programme value: Multi-billion dollars over the contract life
📍 CONTRACT AWARDS BY REGION
🟢 Fulton Hogan
• Northland – ~NZ$450–500m
• West Coast – ~NZ$200m
• Nelson / Tasman – ~NZ$220m
• Central Otago – ~NZ$200m
• Marlborough (JV with HEB) – ~NZ$250m
Approx. total: ~NZ$1.3B+
🔵 Higgins (Fletcher Construction)
• East Waikato – ~NZ$350m
• Bay of Plenty – ~NZ$500m
• Hawke’s Bay – ~NZ$450m
Approx. total: ~NZ$1.3B
🟠 Downer
• Central Waikato – ~NZ$350m
• Taranaki (shorter term) – ~NZ$200m
• Tairāwhiti / Gisborne (shorter term) – ~NZ$180m
• Coastal Otago – ~NZ$140m
Approx. total: ~NZ$870m
🟣 HEB Construction
• North Canterbury – ~NZ$400m
• Marlborough (JV with Fulton Hogan) – included above
🟤 Isaac Construction
• South Canterbury – ~NZ$280m
⚫ SouthRoads
• Southland – ~NZ$260m
🔧 WHAT’S DIFFERENT UNDER IDM
• Stronger NZTA control of asset management
• Contractors accountable for outcomes, not just activities
• ~20% of work remains contestable, enabling ongoing subcontractor opportunities
• Performance-based incentives for quality and reliability
📈 WHY THIS MATTERS
This is one of the largest long-term maintenance commitments ever made in NZ roading.
It delivers:
• Workforce and investment certainty
• Confidence to invest in plant, systems, and capability
• A stable pipeline for regional contractors and suppliers
• Greater consistency in highway performance nationwide
Bottom line:
This isn’t just a contract round.
It’s a structural reset for how New Zealand maintains its most critical infrastructure — and the next decade of work is now locked in.
