The 42 inch concrete coated river crossings require specialist design for both permanent and temporary works - engineering (Dave Gratton), method statements (Alan Noronha, Whitney Keller), management (Wayde Moon & Clint Kellar) and installation (Jim Gibb, Ian Glass and Neil Scoble) - to ensure the crossings are installed safely and that the strict environment standards required by BP are met.

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There are ten crossings including the 900 m Kura West River. The crossing sections are massive at 18 t per 12 m joint and require 355C and 594 pipelayers for the installation.