Indeed,

https://www.tunneltalk.com/Australia-23Feb2016-Salini-Impregilo-NRW-JV-selected-for-Perth-Forrestfield-Airport-Link.php https://www.tunneltalk.com/Australia-23Feb2016-Salini-Impregilo-NRW-JV-selected-for-Perth-Forrestfield-Airport-Link.php

Tony Bailey

> On 6 Jun 2018, at 11:48 am, 'Richard Youl' via TramsDownUnder tramsdownunder@...> wrote:

>

> It could depend a lot on whether the Perth alignment is through sand and Melbourne through rock.

>

> Regards,

>