What date does Transmission Gully open?
Mia Morrison
Updated on March 09, 2026
What date does Transmission Gully open?
September 27, 2021
Transmission Gully was previously set to open on September 27, 2021. When the new motorway opens it will become SH1. State highways are numbered according to which part of the country they were in.
Who is the contractor for Transmission Gully?
CPB Contractors
CPB Contractors – Transmission Gully nearing completion.
Why is Transmission Gully called Transmission Gully?
Transmission Gully, a chain of steep-sided, isolated valleys in the Wellington Region of New Zealand, runs approximately north-south between the Kapiti Coast and Tawa, through hills east of Porirua. The gully’s name comes from the 110,000-volt transmission line that formerly ran through it.
Will Transmission Gully be tolled?
The NZ Transport Agency has announced that the Transmission Gully motorway will not be tolled. The Transmission Gully motorway is a 27 kilometre, four-lane road designed to improve the safety and resilience of the transport network into Wellington.
How much faster is Transmission Gully?
In their evidence used to get the project consented, the NZTA say Transmission Gully will save 7 minutes despite the road being 0.7km longer than the current coastal route. While a much longer route, that’s a similar overall time saving to what the Northern Gateway Toll road achieved.
How much does Transmission Gully cost?
The 27 kilometre stretch of motorway was supposed to cost $850 million but has now exceeded a budget of $1.25 billion.
Where does Transmission Gully start and end?
Transmission Gully Motorway
| Transmission Gully Motorway (under construction) | |
|---|---|
| North end | SH 1 at Mackays Crossing, north of Paekākāriki |
| South end | SH 1 at Kenepuru and Linden, north of Tawa |
| Location | |
| Primary destinations | Paekākāriki Pāuatahanui Whitby Waitangirua Cannons Creek Kenepuru Linden |
How long is Transmission Gully road?
16.78 mi
Transmission Gully Motorway/Length
