
Transmission Gully Cut 40
The 27 kilometre four-lane motorway runs from Mackays Crossing to Linden, through Transmission Gully. Four interchanges and two new link roads connect the route to Mackays, SH58, eastern Porirua and Kenepuru with a PPP construction budget of $850M.
Cut 40 had been previously completed but an adverse weather event caused local failures in the 60m high cut where Geovert had already installed 30m inclined drains with casing at the base of the cut in the projects slope stabilisation works.
Project Overview

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