Northconnex Tunnel

Pennant Hills
Lendlease Bouygues Joint Venture
9km long
Northconnex tunnel infrastructure project by CM+

CM+ provided the urban and landscape design for the nine kilometre long NorthConnex tunnel and associated facilities, extending between the M1 Pacific Motorway and the Hills M2 Motorway.

NorthConnex presents an important and challenging opportunity to deliver excellence in architecture, urban design and landscape design for motorways and public infrastructure.

Prominent items along the route at the surface or in the tunnel has been incorporated into the roadway narrative to enhance the driver experience. These include:

  • Special tunnel lighting

  • Special feature planting

  • Pedestrian bridges

  • Ventilation structures

  • Tunnel portals

  • Motorway Operations Complex

  • In-tunnel features to increase driver safety and alertness.

The nine kilometre long NorthConnex tunnel extends between the M1 Pacific Motorway and the Hills M2 Motorway. It presented a unique opportunity to create a tunnel environment that is both safe and engaging for motorists, featuring an enhanced driver experience, developed through intense multidisciplinary collaboration.

CM+ teamed with Lux Populi in placemaking through movement. The journey includes travelling through backlit silhouettes of native birds at entry / exit portals, avenues of trees, starscaped skies and zones of colour. The effects are created through tunnel aesthetic lighting and tunnel feature panels which express the overall project theme of ‘city to country’.