National promises $800m in first Budget for Belfast to Pegasus motorway
National would fully fund the $800 million Belfast to Pegasus motorway in its first Budget if it leads the next government.
Transport spokesperson Chris Bishop said the funding would allow construction to start next year. The promise was reported on 4 October, in the final weeks of the 2026 election campaign. RNZ
The project would extend the Christchurch Northern Motorway about 11 kilometres north, from just south of the Waimakariri River to beyond Pegasus and Ravenswood. It is known as the Belfast to Pegasus Motorway and Woodend Bypass.
The build has two parts: widening the southern section of State Highway 1 from two to four lanes, plus a new four-lane section and bypass further north, with upgraded intersections and new bridges. As a state highway, it would be run by NZTA, the national roading agency, not local councils.
NZTA estimates the road would save drivers up to 10 minutes at peak times, cut daily traffic through Woodend from about 21,500 vehicles to 8,000, and reduce deaths and serious injuries by 78 percent. National is pointing to those three figures to back the spending.
NZTA lists mid-2026 to finish design and consenting, the formal planning approvals, for the main works, and December 2026 for construction of early works. NZTA The Government said in May 2025 early works would likely start in early 2026, with main construction likely later in 2026. Beehive Bishop said full funding in a first Budget would pay for the main works, not restart planning and tendering.
This section follows earlier work to the south. The $240 million Christchurch Northern Corridor included a new 8km four-lane motorway from the Waimakariri River. Beehive An earlier extension of the Christchurch Southern Motorway was described as the first step in a $730 million upgrade of the highway system. The Belfast to Pegasus section would complete the northern end.
The broader context here is what a first-Budget promise can and cannot do under MMP, where parties often must negotiate to govern. A single party's pledge is an opening position for coalition talks and the Budget process. It does not create spending on its own. That needs Cabinet decisions, Budget bids and a vote in Parliament. For officials and contractors, the signal helps order design, approvals, property buys and tendering. For voters in Waimakariri and nearby Canterbury seats, it is a direct promise on commute times and through-traffic.
The broader context for delivery is timing, consent risk and cost control. Early works and main works are on separate tracks. Certain funding would help the main works proceed once design and approvals are finished. It would not remove consent conditions, the connections needed at Belfast and around Woodend, or pressure on cost estimates before a contract is signed. An $800 million commitment would sit alongside other transport bids. Budget watchers will look at where the money is recorded, whether it is new money or shifted from elsewhere, and what is said about running costs and debt. The announcement does not settle those points. The promise itself is clear: pay in full in year one, and start building next year.
