At the northern end of Transmission Gully, the new motorway connects with the existing SH1 (Kāpiti Expressway) just north of the Mackays Crossing interchange.

Mackays Crossing artist impression

Artist’s impression of the completed Mackays Crossing Interchange north of Paekākāriki.

How to use the Mackays Crossing Interchange

You can get on or off Transmission Gully in either direction using this interchange.

If you’re travelling north on the new motorway (eg from Wellington) and want to get to Paekākāriki, or further around the coastal route, you’ll need to take this exit and then travel south.

Motorists travelling from Kāpiti to Pukerua Bay or Plimmerton, should take the Paekākāriki off-ramp to access the SH59 coastal route (‘old SH1’).

Directional arrows on a map showing how to use the Mackays Crossing InterchangeView larger map [JPG, 651 KB]

This animated video shows the Transmission Gully motorway route from Mackays Crossing through the Wainui Saddle.