Kewdale White Oil Line Project

Type of project: Oil Infrastructure

Client: NEWest Alliance
Location: Perth, Western Australia, Australia
Completed in: 2023

The Kewdale While Oil Line (KWOL) project entailed the relocation of a 13km pipeline from BP’s Kwinana refinery to the Kewdale Freight Terminal of Perth Airport, a requirement arising from the Thornlie Cockburn Link railway project.

Spiecapag was contracted for detailed design and construction of the new DN300 oil pipeline to be installed through Perth’s southern suburbs. A congested construction corridor (<5m wide) as well as proximity to local residences led to a concept design with over 90% of the pipeline to be installed using HDD bores.

Over 12km of the pipeline was constructed using the HDD method across eleven crossings, eight of which exceeded 1km. Each crossing was complex in nature, affected by adjacent railway activities, magnetic interference, limited work area and challenging geology. This was one of the largest HDD projects completed in a single pipeline in Australia.